Mirrors and lenses worksheet answers

strange medieval nicknames

Physics 11 - 2017. Showing top 8 worksheets in the category - Mirror And Lens. 0°. Applicable to Phy Review Worksheet of lens ray diagrams… Is this a converging or diverging lens? Any lens that is thicker in the middle is a converging or convex lens Any lens that is thinner in the middle is a diverging or concave lens Ray diagrams for multiple lenses • When there are two lenses, the image from the first lens becomes the object for the second Concave And Convex Mirror. If you don't see any interesting for you, use our search form on bottom ↓ . This is part of the big idea: Light has characteristics and properties that can be manipulated with mirrors and lenses for a range of uses. 2. Index of refraction table 4. Animation: Rotating a Mirror and the Reflected Ray. See more Lenses bend light in useful ways. 4 Thin Lenses 26. ) (a) v = 6 cm , (b) v = 8 see a virtual image by looking in a mirror on a wall – your image will appear to be  Lights, Mirrors, Lenses! 4 worksheet pack with answer keys. A refracting telescope is one type of optical telescope. mirror. Start studying Chapter 19 Light, Mirrors & Lenses Challenge. Spherical mirrors quiz questions and answers pdf, in concave mirror, size of image depends upon, with answers for physics certifications. Draw a ray from (top of) object parallel to axis. Learn It!Asking questions helps you to understand what Focal Length of Lenses •The focal length, ƒ, is the image distance that corresponds to an infinite object distance. Answer. ⇔. They are  Behind the pupil lies the eye's lens. PHYSICSFundamentals diagram to confirm your answer. Physics - Mirror Worksheet 1. Refraction and Lenses The following downloadable PDF files represent a collection of classroom-ready worksheets pertaining to the topic of Refraction and Lenses. the image of the object is 1. com › Third Grade Worksheets Introduce your flashlight to mirrors. Reflection and refraction worksheet abitlikethis mirrors lenses moreover worksheet. For any mirror, if an image distance is negative, then the image is located behind the mirror. When this happens, the light will bend (refract). Work is directly proportional to the displacement of the car (skidding distance) and the kinetic energy is directly related to the square of the speed (KE=0. A concave mirror converges light to a focal point. pdf; Friction Practice with answers. . 3, 19. obj. Lenses have two focal points, one on either side of the lens. Mirrors and Lenses Worksheet 1. Reflection is is: (LO #3) A. 3 Optical Phenomena in Nature 11. Animation: Reflection and Refraction. What is the height of the line in inches? Use the circle to answer question 3. Using a ray parallel to the principal axis and one incident upon the center of the mirror, the position of the image can be constructed by back-projecting the rays which reflect from the mirror. Physics 202-Section 2G Worksheet 11-Lenses Formulas and Concepts Snells Law: o When light enters a new 1. 5*m*v 2). Contains specialized cells that respond to light – some of the cells send signals through the optic nerves to the brain to be interpreted as images. 14. Post-Activity Assessment. It is used in the "optical" range of light, which is the range we see in. 2. Some of the worksheets displayed are Physical science 2014 2015 concave and convex mirrors, Diverging converging lens work, 1 1 1 h d i i in every problem draw a ray i o f h d o o, Ray diagrams for concave mirrors, Physics, Convex mirrors, Ray diagrams, Physics 202 section 2g work 11 lenses. Surfaces having positive and negative curvatures. This is known as the focal point or focus. 0 cm high. Magnifying glasses are lenses and they make things look bigger. What must be the shape of the glass? How does the glass produce all those butterflies? Look at the text on page 426 for the answer. CH 17 Reflections/ Mirrors and CH 18 Refraction/ Lenses Concave Mirrors and Convex Lenses Worksheet, due Mon, 8 Feb answers to selected test review problems p Convex Lenses Practice Worksheet Name _____ 1) An object is placed 8 cm in front of converging lens. Mirrors And Lenses . doc - 102 kB; Answers Included No: Language About PhET Our Team Sponsors. A second converging lens, having a focal length of 0. when light bounces off a surface 2. concave vs convex - convex vs concave lenses for kids, light and lenses. Try to create parallel beams of light using both lenses. Step One: Draw a ray, starting from the top of the object, parallel to the principal axis and then through “f” after reflection. " or mirror. Worksheets are synchronized to readings from The Physics Classroom Tutorial and to sublevels of the Minds On Physics Internet Modules. They are used by dentists to see larger images of the teeth. 1. When the ray reaches the lens plane it bends (away from optical axis) so that the ray looks like it originates from the focal point (A). What is its radius of curvature? 2. A lake with clear water and a dark bottom mirrors very well when the surface is flat (no wind). 85m. 34 Mirrors and Lenses. C a. 2 Partial Refraction and Total Internal Reflection 11. Worksheet: Mirrors and Lenses 1. . Page 27. Convex Mirror Image. It is located 10. And I'm going to focus on convex lenses first. Muscles in the eye control the size of the pupil and the shape of the lens, thereby adjusting the amount of light that enters  Summary of ray diagrams (mirrors and lenses) . 1), and spherical particle model of light worksheet 7 refraction answers org optics physics problems ppt on daily life examples of reflection and refraction of light light interacting with concave prism refraction laboratory report with prism branches of physics optics light wave lab activities using concave and convex mirrors igcse+phy+measurements+worksheet Light – Reflection and Refraction 161 Let us recall these laws – (i) The angle of incidence is equal to the angle of reflection, and (ii) The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the same plane. If the angle of incidence of a ray of light is Visit: The Calculator Pad Home | Calculator Pad - Reflection and Mirrors Minds On Physics the App Series Minds On Physics the App ("MOP the App") is a series of interactive questioning modules for the student that is serious about improving their conceptual understanding of physics. CONCAVE MIRRORS Extra Practice Worksheet a) Draw aSNC 2D - Light and Geometric Optics. Which lens magnified the object and which made it look smaller? Start studying Lesson 3: Mirrors, Lenses and The Human Eye. All angles are measured with respect to the normal direction. pdf FREE PDF DOWNLOAD Light and Reflection | Worksheet | Education. Convex mirrors cause light to spread out, concave mirrors cause light to go in and create a focal point. 4, 4, 19, 19. the bending of light as it passes from one medium to another C. utexas. We take a brief look at some ways in which mirrors and lenses are utilised in technology. 5 cm. Animation: Reflection and Refraction Ray Diagrams –Concave Mirrors In a 3-step process, use three principal rays to draw a ray diagram. Mirror And Lens. Lenses and Mirrors Observation Activity This data chart guides children in exploring convex and concave mirrors and lenses and their effects on images. Physical optics will help you understand the phenomena of light wave interference, diffraction, and polarization; the use of thin film coatings on mirrors to Light and lenses multiple choice questions and answers (MCQs), light and lenses quiz answers pdf, learn online elementary school courses for science degree. Image formed by mirrors is due to the reflection of light originated from an object. Answers. Showing top 8 worksheets in the category - Concave And Convex Mirror. 3. Convex Lenses •All light rays traveling parallel to the optical axis are refracted so they pass through a single point, which is the focal point of the lens. Resources (with answer keys) for the Microscope Parts PowerPoint can be found at my TPT store and can be purchased separately…. Some of the worksheets displayed are Diverging converging lens work, 1 1 1 h d i i in every problem draw a ray i o f h d o o, Mirror mirror student work, Ray diagrams for concave mirrors, Mirrors and lenses, Mirrors and lenses, Refraction and lenses, Ray diagrams for converging lenses. This is a short tutorial on how to draw ray diagrams for plane mirrors. 1 With a concave spherical mirror, for objects beyond the focal length The focal length of a convex mirror is a negative distance. They answer 13 matching questions about light rays, light behavior and types of lenses. A convex mirror diverges light, as does a concave www. •A thin lens has two focal points, corresponding to parallel rays from the left and from the right. Mirror Quiz. Lenses worksheet. 75 cm, is then placed 1. The Lens Equation 3. Draw a ray diagram for this situation. WHY IS THAT? Why don't they work in the SAME way as mirrors, instead of the opposite way? - Dana Aldinger Monty Middle School, Coquitlam Geometric Optics 2. 3 Answers#1: P 2. The other type of optical telescope is the reflector (mirror). Name Date ClassNote-taking Worksheet (continued)Section 3 Optical InstrumentsA. Find convex and concave lenses lesson plans and teaching resources. Answer: E. Mirrors, Lenses, and the Eye. 3. b) State the characteristics (SALT). 0 cm. _____ 1. 1 Images Formed by Flat Mirrors 26. virtual and inverted. Lesson 3. You will see an ever-increasing number of objects as you move the mirrors closer together (reducing the angle between them Microscope parts power point 1. An image is formed in 35 cm in front of the mirror. Convex lenses are diverging lenses. •As a result, lenses with flatter sides have longer focal lengths. Answers: 1 a) virtual image b) convex mirror c) plane d) real e) concave lens Question2: Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) We can obtain an enlarged and erect image by a convex mirror. Have the groups write down their answers to turn in. Refraction & Snell's Law #1. The worksheet can be used as a guided inquiry lesson or as a review. 0-cm tall object placed 10. In this optics worksheet, learners read about refraction and reflection, lenses and mirrors, and objects and images. C. That will allow you to change the diagram itself, perhaps by moving the object closer or farther from the lens, or changing the focal lengths. T / F. It also contains a few examples and practice problems along with the equations needed to solve it. Mirrors Formulae worksheet ANSWERS File. Please enjoy this FREE Microscope Parts PowerPoint. It begins by Some of the worksheets below are Curved Mirrors Worksheet, uses of curved mirrors, the difference between a concave and convex mirror, Diagrams for convex mirrors : Image Formed by a Plane Mirror, Image of an extended object, Image of a distant object, Paraxial rays , focal length , … Directions: Research the resource lesson on diverging lenses for these answers. Lenses And Mirrors . 3 With this design, the whole light coming into the telescope is concentrated at a single focal point so the light is «amplified». doc View Download 3. 550 A CHAPTER 19 Light, Mirrors, and Lenses Apply It! As you read the chapter, look for answers to lesson headings that are in the form of questions. 2 Lenses SNC 2D - Light and Geometric Optics CONVEX MIRRORS Extra Practice Worksheet a) Draw a ray diagram for each to locate the image. Examples are given for converging and diverging lenses and for the cases where the object is inside and outside the principal focal length. Students learn about energy and about comparing ways to transfer information: sound, light, radio, microwave energy. In this science printable, students will also define hyperopia and myopia and identify the type of lens used to correct each condition. CONCAVE MIRRORS Extra Practice Worksheet a) Draw a raydiagram for each to locate the image. Concepts review – mirrors/refraction 8. It will be graded out of 12 - allowing you two "free errors or omissions or extra credit. Based on your drawing, list the characteristics of the image. Worksheet Lenses. uses two convex lenses to gather and focus light from distant objects: reflecting telescope: uses a concave mirro, a plane mirror, and a convex lens to collect and focus light from distant objects: microscope: uses two convex lenses with relatively short focal lengths to magnify small close objects This worksheet covers the topics of reflection and refraction as well as the color spectrum of light, utilizing the following exhibits at WonderWorks: two sets of carnival mirrors, a bubble station with three bubble blowing stations, and a fog wall. Quiz & Worksheet - Answering Lens Questions Using Equations Quiz; You will receive your score and answers at the end. Converging lenses, like those normally found in reading glasses, have positive refracting powers. Inspiring Mirrors and Lenses Worksheet worksheet images. Find the focal distance of the lens. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience. different mirrors. com www. Reflection and Mirrors The following downloadable PDF files represent a collection of classroom-ready worksheets pertaining to the topic of Reflection and Mirrors. Lenses or mirrors with flat surfaces are said to have an infinite radius of curvature. Objective: Apply the thin-lens equation and the mirror equation to determine the focal length of a converging lens and mirror. 3 worksheet#2: P 2. What are the two types of lenses? Physics Curved Mirror Worksheet Please use complete ray diagrams to locate the image of the objects shown below. Report a problem. An image can also be on this “wrong side”. Which of the following is NOT a true statement regarding light? Light can be An object is placed 2. • Material other than glass or clear plastic is required to manufacture mirrors, whereas lenses only require glass or clear plastic. Wonder Mountain's Guardian Worksheet. The angle of incidence is the angle between the incident ray and the normal. Find the image from the mirrors below. _____ telescopes use two convex lenses. 03 Description: Reasoning with geometric optics and ray-tracing. Introduction. C F Is the image real or virtual? Support your answer. Image Formation by Mirrors and Lenses CHAPTER OUTLINE 26. Review their answers to gauge their mastery of the subject. And think about how they transmit or refract light. Remember, the more careful your setup, the better your data! Note: All calculations in this lab will be performed using centimeters. Spherical mirror Ray diagram worksheet: For each of the questions below, you must draw a ray diagram to show the image. Skills Worksheet Directed Reading A Section: Safety in Science KEEPING YOURSELF SAFE Write the letter of the correct answer in the space provided. • Goals: to discuss the properties of mirrors and lenses, and demonstrate them using optics; build a telescope • Materials: optical bench, ray trace worksheet, meterstick 9. A concave mirror has a focal length of 10. Many of them can be discovered by watching the outcome of each ray animation. Refraction. 1 Or is it? Should that not be a minus sign on the left hand side? Or should it be a plus sign for mirrors and minus for lenses? (“ More for a Mirror; Less for a Lens. The image formed by a single lens can be located and sized with three principal rays. when no light is allowed to pass through it ! D. education. 5. 1 Introduction The equation that relates object distance p, image distance q and focal length f is . Download CBSE Class 10 Physics Worksheet - Light-Reflection and Refraction in pdf, questions answers for Physics, CBSE Class 10 Physics Worksheet - Light-Reflection and Refraction - Practice worksheets for CBSE students. Lenses and Mirrors Activity After using reference materials to answer questions about lenses and mirrors, students will label each shape as convex or concave. Students found these useful as they contain key rules to follow. 2 Discussion The behavior of light depends on how it strikes the surface of an object. Reflection. As will be seen, light rays incident on a concave mirror are re°ected and converge to a point. answers General Physics 2 Geometric Optics 16 Sign Conventions • focal length • positive for converging lenses • negative for diverging lenses • object distance • positive if the object is on the side of the lens from which the light is coming (this is usually the case) • otherwise, it is negative (virtual object). View Homework Help - worksheet10-answers from PHYSICS 202 at University of Alabama, Birmingham. Chapter 18: Ray Optics ". b) State the This PDF book include practice drawing ray Mir ror s and Lenses Click er Questions Question P1. Lenses wksht 3 12. An object is 15 cm from a concave mirror of 5 cm focal length. 2 Introduction 10. a) Concave mirrors:-Concave mirrors are used in torches, search lights and head lights of vehicles to get parallel beams of light. Ray Tracing Lenses Gizmo Answers - panaust. Mirrors and lenses. NCERT Science Solutions for Class 10 Chapter 10 - Reflection and Refraction solved by an experienced team of subject professors of Gradeup School with an objective to aid students in scoring good marks in the exam. o Refractors (lenses) and Refelctors (mirrors) o What do astronomers do with telescopes? o Imaging- take pictures o Spectroscopy- break light into spectra o Time monitoring- measuring light output with time o Space vs. Questions and Answers What is the difference between concave and convex mirrors ? 4. Physics 202-Section 2G Worksheet 11-Lenses Formulas and Concepts Snell’s Law: o When light enters a new medium (like when it’s traveling through the air and then runs into water or glass) it will either speed up or slow down. Animation 7. Light and lenses quiz questions and answers pdf, lenses used for short sighted are, with answers for science certifications. Lenses Formulae worksheet ANSWERS File. Diffraction. F C Is the image real or virtual? Support your answer. Optical telescopes Bill Nye Light Optics Worksheet Answers Elegant 28 Pdf Bill Nye from bill nye light optics worksheet answers , source:ajihle. As this angle approaches 90 degrees, the reflected ray also  the answer. Good companion worksheet to a textbook chapter on Light technologies in our world today. Magni cation 5. wearing proper safety equipment b. On this page you can read or download light refraction and lenses worksheet answer key in PDF format. An object 30 cm high is located 80 cm from a concave mirror, focal Mirrors and Lenses Practice Test Multiple Choice Circle the letter of the best answer. But lenses work the opposite way: concave lenses spread the light out, convex lenses focus the light. Label the prisms as triangular or rectangular. ConnectedObjects. Includes discussion questions. Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces. 3 Images Formed by Refraction 26. 3 Answers#2: P 2. Fred's glasses are concave lenses with a focal length of -12. C) The speed of light remains constant. Plastic lenses can be molded to shape, instead of being ground, so they can be made in huge quantities far more cheaply than glass lenses. 5 1 customer reviews. (11) Draw a ray diagram for a diverging lens that has a focal length of -10. 21, 2014 Class 8. Using the lenses in front of you, look at different objects in the laboratory and record your observation. Diverging lenses, like those worn by people with myopia or near-sightedness, have negative refracting powers. light reflection worksheet answers. bumping into people in the lab d. The principal axis of a mirror is a line through the center of curvature C of the mirror, and the Mirrors. The application of the thin lens equation and the magnification equations to single and compound lens systems will be investigated. Light Reflection Worksheet Mirror and Lenses Physics Worksheets Geometry Reflection Worksheet Concave Mirror Ray Diagram Worksheet Convex Mirror Ray Diagram Worksheet Mirrors. ASSESSMENT: Assess students’ answers on the After Playing Worksheet. On the 2-3 day in class when I started to teach, they told me just like this chapter can you please solve our queries related to Spherical Mirrors (lenses). Worksheet Mirrors. Light & Optics Demonstration List. They are used as shaving mirrors to see larger image of the face. From concave & convex lenses worksheets to concave convex lenses videos, quickly find teacher-reviewed educational resources. So a simple lens, and we've all seen them. For eyeglasses, many people now prefer plastic lenses because they're much lighter and safer than optical glass. G. We wish you enjoyed it and if you wish to download the image in high quality, simply just click the picture and you will be redirected to the download page of Key Terms Electricity Worksheet Answers Chapter 7. Write answers on a separate piece of paper. Sources, Shadows, and Pinholes Review worksheets 1A, 1B, and 2 • Light is a means of energy transfer • Sources can be luminous or non-luminous; light particles originate at the source or are reflected by the source Lenses and mirrors work opposite of each other. A smooth surface reflects light rays traveling in the same direction at the same angle; this is called CHAPTER 2 LENS AND MIRROR CALCULATIONS 2. A ray diagram shows how rays _change direction_ when they strike mirrors and pass through lenses. What are lenses and what do they do to light in general? Lenses are transparent shapes typically made of glass or plastic that refract light. Light Matching Worksheet Answers, 30 Bill Nye Light Optics Worksheet Answers Balancing Equations Worksheet, 13 Best Of Definition Matching Worksheet Huntington S Disease Karyotype Transportation, 30 Bill Nye Light Optics Worksheet Answers Balancing Equations Worksheet, Miscellaneous Light Topics Worksheet For 9th 12th Grade Lesson Planet, Reflection And Refraction Worksheet By Biscuitcrumbs LIGHT AND SHADOW All the visual and written material is used in this 4. Have them share their results with the class. You were  Outline. This way, they make the object look bigger, sharper and brighter. Make sure that you label the image and answer each question in the boxes for each diagram. A convex mirror forms a virtual image. Label the lenses and mirrors in these diagrams as concave, plane, or convex. Sample answer: Pretty much Mirrors and Photography The single lens reflex (SLR) camera is popular. Quiz & Worksheet Goals. 0 ft behind the right-hand mirror, which is 25. Worksheets are Diverging converging lens work, 1 term descriptor term descriptor, Raytrace lens work, The lens equation, Physics 202 section 2g work 11 lenses, Converging diverging lenses ray diagrams, Refraction and lenses, Name box score date ap physics work 14 chapter 24. com. These laws of reflection are applicable to all types of reflecting surfaces Light: Lenses and Mirrors Test Review Review notes, homework and all worksheets. On this page you can read or download light refraction and lenses worksheet answers in PDF format. Scattering. What is the length of the line in inches? 2. ⇔ formed to see if your answer is plausible. Convex lenses make things look smaller and farther away. The reflection of light can occur in different ways. Class: X Physics Grade 10 Academic Science - Fall 2017 Worksheet #3 Answers. Learn more SigFig Worksheet Answers File. Answers For Gizmo Ray Tracing Mirrors Pdf Download answers for gizmo ray tracing mirrors comprehensive nclex questions most like the nclex, delegation strategies for the nclex, prioritization for the nclex, infection control for the nclex, free resources for Ray Tracing Lenses Gizmo Answer Keys Pdf Handle lenses and mirrors by the edges only. Mirrors. Additional Worksheets. Special mirrors All kinds of shiny objects act like mirrors: Christmas balls, spoons, pans, windows, computer screens. Click on the images to view a larger version. • Use the thin-lens in school Manuel studied light imaging with mirrors and lenses, ray tracing, and calculations with Answer the following questions to learn more  Mirrors And Lenses : Example Question #2. the transformation into chemical energy, electrical energy, or thermal energy B. Mirror images are formed by light from the object’s right side reflecting from the right side of the mirror and light from the object’s left side reflecting from the left side of the mirror. Acts as a convex lens and refracts most of the light in the eye. It’s a lot easier to keep these clean than it is to clean them! First, you’re going to do a basic setup. The Human Eye and Corrective Lenses. Concave and convex lenses can sometimes be used to cancel the effect of the other type of lens. Light rays follow a complex route as they encounter mirrors or In describing mirrors and lenses, the word object is used in a new way. Nature of image formed by convex lens and concave lens. ! 1. Concave mirrors and convex lenses produce both real and virtual images. 8 cm when an object is placed 32. 9 Nov 2009 Convex (converging) and concave (diverging) lenses are drawn as. This worksheet does not present "correct answers," it is a single submission. Scientists and amateur astronomers use many different types of telescopes. Drag lenses 1 and 2 into the diagrams A to D. B. Why are some surfaces mirrors? 1. Displaying all worksheets related to - Mirror And Lens. Name Naan Karnravee Karntarat Date Oct. 4, 19. Mirrors are cool surfaces that reflect light just as well as they reflect your face. Some of the worksheets displayed are Diverging converging lens work, Converging diverging lenses ray diagrams, 1 term descriptor term descriptor, Light reflection refraction, Mirror mirror on the wall eight lessons on mirrors, Ray diagrams for convex mirrors, 1 1 1 h d i i in every problem draw a ray i o f h d o Lights, Mirrors, Lenses! Study Guide worksheet with answer key. Then use the “thin lens” equations to calculate: Lenses- Worksheet 1. real, upright, and smaller than the object. A real image is produced at 12 cm. Multiple lenses 1 10. What does a ray concave mirror worksheets worksheet doc. The shape of a lens or mirror (concave, convex or flat) affects the direction in which light travels: Complete diagram worksheet. UTSA Department of Physics and Astronomy. If you are absent, or missed part of the notes, or lost a worksheet or handout, this is the place to come Scientific Instruments and Measurement Worksheet Use a ruler to answer the following questions. *note- diagrams are not to scale Grade 10 Science. Cones that detect the color of light. Ray Tracing - Lenses Diverging Lens (focal lengths less than zero) 1. Good review sheet for a quiz also. AP Physics – Worksheet #13: Chapter 24 Goals: To understand concave and convex mirrors and to make ray diagrams Three rules for ray diagrams: 1. Incident . 3 Homework Answers CHAPTER 12: LENS AND LENS TECHNOLOGIES 12. Mirrors worksheet. com Print Ray Diagrams & Lenses: Physics Lab Worksheet We've talked a lot about mirrors, in particular parabolic mirrors, that reflect light. You will exercise and study the image formation by plane mirrors (Fig. Energy worksheet, Light wave worksheet, Reflection worksheet, Refraction, worksheet, Mirror worksheet, Lens worksheet, Opaque worksheet, Transparent worksheet, Math Reading Science Tests for Grades , Practice Sample Test, Free Online Worksheets Energy worksheet, Light wave worksheet, Reflection worksheet, Refraction, worksheet, Mirror worksheet, Lens worksheet, Opaque worksheet, Transparent worksheet, Math Reading Science Tests for Grades , Practice Sample Test, Free Online Worksheets This crossword puzzle, “ Mirrors And Lenses, ” was created using the Crossword Hobbyist puzzle maker Lenses_Virtual LabPhET Geometric Optics2016. 5 cm behind the first lens   Worksheet –Spherical Mirror Images. Fifth Grade Science Mirrors and lenses. Convex lenses can form either real or virtual images. _____ use mirrors and lenses to gather more light from faraway objects than the eye does. 13. 05 - PhET Interactive Simulations Plane mirrors, convex mirrors, and concave lenses always produce virtual images. Most devices that control light have one or more lenses in them (some use only mirrors, which can do most of the same things that lenses can do) Lenses use the principle of refraction of light when it enters a different medium; for example, from air to glass. When your exercise Reflection by plane mirror – Laws of reflection (Group Experiment). On your worksheet, complete Chart 1. Polarization. Light reflects from a mirror. 2 Images Formed by Lenses Images Formed by Lenses Worksheet Lens and Magnification Equations Worksheet 1b Shadow Formation; Flat Mirror Lab; Worksheet 4 Reflection & Plane Mirrors; Curved Mirror Simulation; Concave Mirrors; Convex Mirrors & Quantitative Problems; Mirror Equation WS 6b; Introduction to Refraction Lab; Worksheet 2 Pinhole Cameras; Worksheet 9 Lens Diagrams (Quantitative) 17 Reflection and Mirrors CHAPTER Practice Problems 17. However, to see other objects in space, or to see some objects better, you need a telescope. Lenses have the same properties. 0 ft from the left-hand Lenses Differences between lenses and mirrors. Aimed at AQA GCSE Physics. Collection of reflection refraction worksheet bloggakuten imperialdesignstudio. 205 | 210-458-6316 | PhysicsAndAstronomy@utsa. 1 Refraction of Light 11. Mirror, Mirror: Student Worksheet Introduction Mirrors are everywhere: in our cars, bathrooms, shinny metal surfaces, water, and windows. SNC 2D - Light and Geometric Optics CONVEX MIRRORS Extra Practice Worksheet a) Draw a ray diagram for each to locate the image. Applied Engineering and Technology Building, Suite 3. Mini labs (2) law of refraction / critical angle 6. Some of the worksheets for this concept are Mirror mirror on the wall eight lessons on mirrors, Mirror mirror student work, Proofreading revising editing skills success, Semicolons and colons, Mirrors and lenses, Four butterflies but only one is, Mirror equation questions, Table of contents. Water fills in the rough areas and makes the surface smoother. Where will an  This problem has been solved! See the answer. Light goes through, and is refracted by, a lens. Light hits the mirror at a angle and it will reflect at the same angle. •If the sides of a convex lens are less curved, light rays are bent less. Snells Law Exercises 2 ANSWERS: Ray Diagrams - MIRRORS UPDATED: Mirrors Formulae worksheet: Mirrors Formulae worksheet ANSWERS: Ray Diagrams - LENSES: Lenses Formulae worksheet: Lenses Formulae worksheet ANSWERS: Interference Pattern Diagram: Diffraction Diagrams: P 2. Some of the worksheets displayed are Diverging converging lens work, 1 1 1 h d i i in every problem draw a ray i o f h d o o, Chapter 2 lens and mirror calculations, Physics 202 section 2g work 11 lenses, Mirrors and lenses, The lens equation, Mirror mirror student work, Ray diagrams for concave mirrors. how can we find the focal length of a mirror or lenses - Physics - TopperLearning. Ask the students to describe and explain how two of the following devices work - periscope, reflecting telescope, rear view mirror, putting on makeup, dentist’s mirror, or security mirror. Draw a ray from (top of) object through center of lens. A. c. being careful to prevent accidents c. No calculation included in this activity; introduction to concave and convex mirrors. Concave Lenses 4. Circle the letter of each sentence that is true about convex lenses. If an object is outside the focal point on a concave mirror, the image will be a. Which of the following is NOT a way to keep yourself safe in a lab? a. Unit 7: Light, Lenses, Mirrors, Reflection, and Refraction. physics optics mirrors diagrams ray refraction diagrams on a plane law of optics light infinity reflections mirrors diagrams types of concave mirror with name explaination how to cheat in physics lights optics - law of reflection for plane mirrors optics formulas cheet refraction diagrams sheet answers lenses and mirrors cheat sheet What is the difference between Mirror and Lens? • Mirrors are devices which are based on the principle of reflection whereas lenses are devices which are based on the theory of refraction. 4 5. AP* Optics Free Response Questions page 3 LENSES 1981 Q5 An object O is placed 18 centimeters from the center of a converging lens of focal length 6 centimeters as illustrated below: (a) On the illustration above, sketch a ray diagram to locate the image. 25 terms on topics of: light sources, mirrors, lenses, the human eye, and light technologies. Includes crossword puzzle, wordsearch, matching pairs puzzle and vocabulary review sheet. Final Quiz Solutions to Exercises Solutions to Quizzes The full range of these packages and some instructions, should they be required, can be obtained from our web page Mathematics Support Materials. Extra Credit: The following represents a system of two lenses, the first a convex lens with focal length f1 = 30 mm, and the second a concave lens with focal length f2 = -60 mm. Mirror And Lenses. Concave Mirror Ray Diagram Worksheet Diverging Lens Ray Diagram Worksheet Concave and Convex Mirrors Worksheets Light Reflection Refraction Worksheets Concave Mirror Ray Diagram Worksheet Quiz & Worksheet - Answering Mirror Questions With can read information regarding concave and convex mirrors and interpret more about answering mirror questions with equations, review the Mirrors and lenses. Distance A is equal to distance B and the image size is the same size as the object size. Fly eyes have many facets shaped like the surface of convex lenses. This negative distance actually represents a point on the “wrong side”, in back, of the mirror. Describe the. The cartesian sign convention is used here. 15. A concave mirror has a radius of curvature of 0. ” Convex Lenses Practice Worksheet Name _____ 1) An object is placed 8 cm in front of converging lens. Physics 41: Image Formation by Converging Lenses & Mirrors . Straight Lines Mirrors and lenses can make things look In this video we will learn the mirror equation and how to find the height and distance of an image. Similarly transparent plastic mirrors reasonably well when put on top of dark paper (lesson 3). Worksheets to help practice ray diagrmas. 1 Refraction of Light pages 485–492 page 487 1. We can locate and characterize the images by tracing the reflected rays. com is the place to go to get the answers you need and to ask the questions you want how light rays behave when they strike mirrors or pass through lenses? you now do your Created Date: 11/20/2012 1:00:59 PM Class 7 Important Questions for Science – Light NCERT Exemplar Class 7 Science is very important resource for students preparing for VII Board Examination. A student exploration guide in a worksheet form such that students can fill in answers as they use the Gi (more) zmo. Rays that come in parallel to the principal axis go out through the focus. In addition to the shape, lenses and mirrors are classifled by their response to light rays, that is incident light rays re°ect ofi mirrors and refract through lenses. What to Do. 700 MIRRORS AND LENSES §38-2 The paths of light rays incident upon the surface of a mirror may be determined by application of the laws of reflection. Light in air is incident upon a piece of crown glass at an angle of Worksheet 14 Sample worksheet answers 16 Be able to explain how magnifying glasses and mirrors bend light to create a virtual use only lenses are called Physical Science 8th Graders, be the leaders I know you can be! Physical Science is broken into 3 main units: Astronomy, Chemistry and Physics. A second identical converging lens is located 1. exercise until coming back to school, the qualitative questions may be answered. Use the line to answer questions 1-2. The best advice I can give to you is to budget your time properly, don't wait until the last minute (the night before) to get your work done. copy them on a paper. If you cannot quickly find the best answer, try to eliminate as many of the other options as Lights, Mirrors, Lenses! Study Guide worksheet with answer key. Chemical Reactions - note and worksheet - be able to do all light ray diagrams with mirrors DATE: NAME: CLASS: TOPIC 5 Making Things Bigger BLM 3-16 REINFORCEMENT Goal • Reinforce your knowledge of mirrors, lenses, and prisms used in light technologies. Worksheet/Answer key. virtual and See 7 Best Images of Mirrors And Reflection Worksheet Answers. Modify with your own questions and answers. A laser beam in air is incident upon ethanol at an angle of incidence of 37. 2 Astronomy Night Observing Session Worksheet Purpose: (1) To observe the broad features of the night sky and identify bright stars and constellations; and (2) to observe in more detail speci c night sky objects { such as the moon, planets, star clusters, nebulae and galaxies { with a telescope. What is the diameter of the circle centimeters? Use the square to answer questions Answer: D. Search this site. Inspiring Mirrors and Reflection Worksheet Answers worksheet images. If a concave lens reduces, then a concave mirror magnifies. Explain why the reflection of light off ground glass changes from diffuse to specular if you spill water on it. Use your notes Use the following information to answer. answers) a. Refraction diagrams wksht 5. This is a diagram of how reflection works on a plane mirror. 2, 19. NAME: Converging Focal point Plane mirror Upside down. Geometrical optics will help you understand the basics of light reflection and refraction and the use of simple optical elements such as mirrors, prisms, lenses, and fibers. Convex lenses gather the rays of light at a certain point: the focal point. pdf; ConnectedObjectsANSWERS. pdf; Friction WS ANSWERS. The concave mirror shown below has an object placed 20cm in front of it. Plane Mirrors. Mirror Lab 2. b. Lenses. 5 Context Connection Medical Fiberscopes ANSWERS TO QUESTIONS Q26. Lenses Formulae worksheet File. doc A) The speed of light is reduced to zero. For this reason, concave mirrors are also referred to as converging Spherical mirrors multiple choice questions and answers (MCQs), spherical mirrors quiz answers pdf, learn online high school courses for physics degree. This instrument has been simplified to create a more enjoyable experience with longer-lasting application retention. Ray Diagrams - LENSES File. A concave mirror has a focal length of 18 cm. Prepared by teachers of the best CBSE schools in India. The object is 2. 10. See more Optics The Study Of Light Answers Sheet. Question An object is located on the optical axis and a distance of 8 cm from a thin conver ging lens having focal length 10 cm. Where is the mirror's focal point? Possible Answers:. The final result is at the right time of evaluation, there’s a great deal of confusion. 1 Reflection from Plane Mirrors pages 457–463 page 460 1. Teachers may print the entire packet or Mirrors and Lenses Clicker Questions Question P1. Have a look at this diagram showing how light is reflected by a plane (flat) mirror: The red line is called the normal, which we draw vertically (at right angles) to the surface of the mirror to help us calculate the angles of incidence and reflection. Instead, lenses are made using a more refined material known as optical glass. 2 Images Formed by Spherical Mirrors 26. (GENERAL) __ Section Quiz, ANC Use this quiz to assess students' understanding of the section. D) The light is repelled by some materials. real and inverted. Applications of Mirrors and Lenses. Common examples of curved mirrors stainless steel spoons, ladles, vessels with round bases, car mirrors, shaving and hub caps of car wheels. Lenses Mirrors Focus focal point or focus Every lens or mirror has a place where all of the parallel rays will meet. odt; Friction Practice with answers. Real or Virtual? b. Ray Diagrams for Lenses. B) The speed of light changes from one medium to the next. Questions and Answers A _____ uses 2 convex lenses to magnify an object and make a smaller object larger. 1 Purpose In this experiment, the formation of images by concave and convex lenses will be explored. Look at the lenses in front of you and try to distinguish the different types of lenses? Describe each type and record its characteristics. As all who have ever tried lens and mirror calculations know, the biggest correctly for all the symbols and get the right answer, −15 cm, according to your own. Verify your answers by drawing an approximate ray diagram a. On a ray diagram, the angle of incidence is the angle that a reflected ray makes with a line drawn perpendicular to the surface of a mirror. –A thin lens is one in which the distance between the surface of Mirrors and lenses ray diagrams worksheets lesson plan template and teaching resources. Expert Answer:  they have used mirrors and lenses. Study Guide. 1 The Thin-Lens Equation This crossword puzzle, “ Mirrors and Lenses, ” was created using the Crossword Hobbyist puzzle maker chemistry chapter 3 worksheet answers. In photo lenses there is some combination of convex and concave lenses to achieve the desired effect. ground- which is better and why? o Ground based telescope are hindered by the atmosphere, weather and light pollution Hinged mirrors Laser pointer Star ball Alphabet Letters Procedure Part I – It’s a Reflection 1. Complete the table. The symbol of the little blue man represents the object that the child is observing (I use a board game piece that looks like a man). Worksheet Discussion: Discuss with students what is occurring. Circle the letter of the sentence that best answers the following question. Exploration of Optics: Converging and Diverging Lenses 6 2275 Speedway, Mail Code C9000 Austin, TX 78712 (512) 471-5847 www. Skip Course categories. Rays that come in through the focus go out parallel to the principal axis. esi. 0 cm from a converging lens having a focal length of 15. pdf FREE PDF DOWNLOAD Chapter 3: Worksheets - Light, Mirrors, and Lenses In order to view and print these worksheets, it is Curved Spherical Mirrors (Ray Tracing and math)Notes Mirrors and math summary Extra Worksheet for mirrors using the mirror equation The optical Bench Worksheet Answers to the mirror math problems from the book Answers to 18, 29, 31,32,42 Answers to Lenses book problems Ray Tracing for lenses Mirror Ray Tracing Worksheet Answers Lesson Plan Chapter 14 Refraction CHAPTER 14 (GENERAL) __ Study Guide, Thin Lenses, ANC Use this worksheet to review the main concepts presented in the section. Showing top 8 worksheets in the category - Mirror And Lenses. When a car skids to a stop, the work done by friction upon the car is equal to the change in kinetic energy of the car. Does the answer depend on how far away from the mirror you  Diverging & Converging LENS Worksheet The same object (height = y) is placed at several different distances s to the left of the same mirror (focal length = p). But, when they are curved, they produce images that are different from those formed by plane mirrors. This topic is about Physical Science. Four butterflies, but only one is real! The others—small, large, upright, and turned upside down—are images that result from reflection and refraction in a single piece of glass. 3 flat and curved mirrors and they lenses. Instructional Videos: Light & Optics. For lenses, light converges to a point for a convex lens. 15 cm in front of a converging lens having a focal length of 0. In any of these circumstances, the Law of Reflection holds Concave mirror Surface curved inward Inside of a spoon Focal point is the spot on the optical axis where all the light rays traveling parallel to the optical axis pass Created Date: 11/19/2010 11:31:28 PM Ray Tracing for Concave & Convex Mirrors - Student Guide . 1 1 1 p q f + = 2. Use the lensmaker's equation to determine the focal length of a thin lens. Show transcribed image  Objects that have flat, smooth surfaces reflect light and produce a mirror-like image. 9 Ray Diagrams For Converging Lenses - smaller page. Initially, we have an object in front of a plane mirror. au read now ray tracing lenses gizmo answers free ebooks in pdf format - physics principles and problems answer key bosch she55m15uc beginning algebra 11th edition balancing act practice kuta software simplifying radicals math labs plus holt mcdougal chemistry textbook cell city worksheet modern Chapter 10 Thin Lenses Name: Lab Partner: Section: 10. Labs & Activities Directory. They are convex lenses. (T/F) (c) We can obtain a real, enlarged and inverted image by a Mirrors And Lenses. Diverging & Converging LENS Worksheet The same object (height = y) is placed at several different distances s to the left of the same lens (focal length = f). Physics 11 . Showing top 8 worksheets in the category - Mirrors And Lenses. glencoe. Upright or Inverted? c. To download free concave mirrors a group of students are studying the imagesyou need to register. pptx, 109 KB. Bill Nye, the Science Guy S02 - Ep07 Light Optics HD Watch Bill Nye, the Science Guy S02 - Ep07 Light Optics HD Watch Dimensional Analysis Worksheet-answers; finding components notes; graphs-answers; math review answers; Significant Digits - answers; Vector intro answers; Vector Lab guide; answers trigonometry worksheet; answers vector practice; Dimensional Analysis Worksheet; Dimensional Analysis Notes; graphing intro notes; graphs notes; Homework 1; homework Physics Light and Reflection Worksheet Worksheet on Refraction and Reflection Light Refraction and Lenses Worksheet Light Reflection and Refraction Worksheet Refraction and Lenses Worksheet Physics Refraction Worksheet Answers Reflection and Refraction Worksheets Doc Reflection and Mirrors Worksheet Answers Your results are personalized. a. First, we draw an image of the object on the other side of the mirror. Teachers may print the entire packet or A 21 question printable mirrors and lenses crossword with answer key. What is the angle of refraction? n 1 sin ! 1! n 2 sin ! 2! 2! !!sin"1!"! !!sin"1!"! 26. QCC Standards 1, 2, 3. 25 cm behind the first lens as shown below. edu image/object heights and record them on their worksheets. of visible light and complete the worksheet below. 2, 3. 3 2. pdf Free Download Here Geometrical Optics: Curved Mirrors Worksheet Mirrors and Lenses - Garden Valley Photo 18 Refraction and Lenses CHAPTER Practice Problems 18. RESOURCES At this site from BrainPOP, your students watch an animated movie about light, perform an experiment on mirrors and reflection, and then take a quiz. Although it is possible to buy lenses that have aspherically curved surfaces, the vast majority of lenses have spherically curved surfaces. (T/F) (b) A concave lens always form a virtual image. What to do at the observatory: What are Concave and Convex Mirrors? We are used to plane mirrors. Here is a responses to worksheet #5 with the class. PowerPoint Worksheet Crossword Review Worksheet Quiz Task Cards 2. 8. Large astronomical telescopes use curved mirrors (a rigid glass or polymer coated with a metal) to focus star light on to electronic detectors. For each case, draw the 3 principal rays to locate the image. concave mirror ray diagram worksheet doc tracing convex mirrors video lesson transcript pdf and,flower diagram worksheets convex and concave mirror worksheet pdf mirrors extra practice answers,curved mirror concave worksheet answers doc convex and,concave mirrors extra practice worksheet answers convex mirror ray diagram real image diagrams lenses View Homework Help - worksheet_mirrors_and_lenses from MATH AND P BA4 at University of Santo Tomas. eyeglasses, contact lenses, infrared or low light vision sensors, laser surgery), and evaluate its An image is a representation of an object formed by a mirror or lens. 1 Characteristics of Lenses 12. ”?) Mirrors & Lenses. See 17 Best Images of Mirrors And Lenses Worksheet. Learn vocabulary, terms, and more with flashcards, games, and other study tools. LESSON 3. They also have problem regarding examples of spherical mirrors and lenses and why these mirrors are different from the plane mirrors. –This is the same as for mirrors. Index 11 draw the relative position of refracted light ray. 9 Dec 2011 Concave Mirror Ray Diagram Worksheet Diverging Lens Ray Diagram Worksheet Light and Electromagnetic Waves Worksheet Answers. Everything can be taken from a man but one thing; the last of the human freedoms — to choose one’s attitude in any given set of circumstances, to choose one’s own way. The greater the power a pair of eyeglasses or contact lenses has, the worse is the vision of the person prescribed them. Science Worksheets and Study Guides Eighth Grade. The virtual images produced by convex mirrors and concave lenses are always smaller than the object. Refraction Review 7. The Color of the Sky & Sunsets. 8 cm in front of a converging lens having a focal length of 0. Mirrors – Ray Diagram Practice 3. - worksheet 2 Pair work 12. Right here we have 20 great pictures on Key Terms Electricity Worksheet Answers Chapter 7. 3° 2. Usually the images are   Finish all assignment with quality answers; show your steps clearly and neatly. 16. Since a mirror has a very smooth surface, all the light bouncing off of a mirror reflects in a regular manner. Best For: Physics . Click on pop-out icon or print icon to worksheet to print or download. Gizmo User from Ontario This physics video tutorial provides the ray diagrams for a concave and convex mirror. 1. Mirrors Explain. Use ray tracing to determine the position of the final image, given the object position. Tape your mirrors together so that they can be opened and closed like a hinge. Interested in other science topics? BrainPOP’s award-winning site has loads of animated Ray Diagram Worksheet - Switchconf Ray Diagram Worksheet For Lenses Physics 311 Compl Chegg Com Ray Diagrams for Plane Mirrors - ppt download Ray Diagrams for Plane Mirrors Quiz & Worksheet - Lab for Ray Diagrams & Lenses | Study. 5 Light, Mirrors, and Lenses 43 Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Use a laser pointer to shine a light from one angle of the protractor and determine at which angle it is being reflected. odt; ConnectedObjects. 27. You want to leave a slight gap between the two edges (around 1/16th of an inch) to do this. com. Concave lenses always cause light rays to _diverge (spread out)_. 3 worksheet#1: P 2. General. Quiz worksheet reflection refraction facts for kids study com print lesson worksheet. edu is a platform for academics to share research papers. 4 Worksheet – Spherical Mirror 14-09,10 - Worksheet - Mirrors Author: Joan McMullan Created Date: 12/20/2005 4:02:02 PM Mirrors are very smooth surfaces and reflect light in a perfectly even manner. 5 days ago Mirrors are polished metal that forms images and lenses are transparent glass having curved sides which are used in optical instruments. jpg Mytourvn Worksheet Study worksheet Properties Of Light Worksheet physics classroom light refraction and lenses answer key 28 reflection diffraction mrsmartinmath [licensed for non-commercial use only] / Unit 1 Optics Handout from Sept: 10 questions on waves. 5 5. (b) Is the image real or virtual? Explain your choice. Multiple Lenses 2 11. Every time I need to construct a question about lenses or mirrors, I use these diagrams as a template to adjust whatever parameters I need to adjust. Question An object is located on the optical axis and a distance of 8 cm from a thin converging lens having focal length 10 cm. What is the nature of the image? Calculate the magnification of the image and the focal Test on Friday May 16, 2014 Lesson 1 - What is Light and Light Production Handout Lesson 1 - What is Light and Light Production PowerPoint Lesson 2 - Ray Diagrams Handout Lesson 2 - How we see PowerPoint Lesson 3 - MIRA Image Location Activity PowerPoint Lesson 3- MIRA Image Location Activity Handout Lesson 3 - Images in Flat Mirrors PowerPoint… Conceptual Physics Name _____ Unit 10: Particle Model of Light Review Key Ideas: 1. Your brain receives two separate images from your eyes and combines them. pdf FREE PDF DOWNLOAD NOW!!! Source #2: light reflection worksheet answers. Lenses and Mirrors Worksheets. Homework Answers Page 418 CHAPTER 11: REFRACTION 11. Dispersion . by abhishekayush15 | 11th Nov, 2018, 10:17: AM. The 4-Lenses™ instrument was created from the research of the Myers Briggs’ Personality Type Indicator, as well as David Keirsey’s modifications to this instrument in his book, Please Understand Me. Images may be real or virtual, upright or inverted, and diminished or enlarged. This ray is not bent. R is the radius of curvature and c = 1/R is the curvature of the surface. com Mirrors And Lenses . Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. types of lenses, and magnification. *note- diagrams are not to scale (10) Draw a ray diagram for a 3. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 7. It refracts light to make fine adjustments for near and far objects. org. Concave/Convex Mirrors. (BASIC) OTHER RESOURCE OPTIONS Worksheet: Telescopes C O O R D I N A T E D S C I E N C E 1 Background: Constellations and the stars that make them up are visible with the unaided eye. Apparatus: Biconvex glass lens, spherical concave mirror, meter ruler, optical bench, lens holder, self-illuminated object (generally a vertical arrow), screen. Some of the worksheets below are Quantum Mechanics Worksheet with Answers, Quantum Mechanics : Question bank – Formulation of the Schrodinger Equation, Stationary States and Energy Spectra, General Formalism of Wave Mechanics, … Academia. Worksheet: Have the students record their observations on the Light Energy Worksheet. Place a mirror at the edge of the protractor. SigFig Worksheet #2 Mirrors Lenses Refraction Reflection URL. Mirror Quiz - Displaying top 8 worksheets found for this concept. What I want to do now is talk about lenses, or talk about what a lens is. 0 cm b. Connecticut Education Standards. as a closing class activity, asking students to solve the problem in groups and then share their answers in  SCIENCE 8 – MIRRORS WORKSHEET. Worksheets are Diverging converging lens work, 1 1 1 h d i i in every problem draw a ray i o f h d o o, Chapter 2 lens and mirror calculations, Physics 202 section 2g work 11 lenses, Mirrors and lenses, The lens equation, Mirror mirror student work, Ray diagrams for concave mirrors. A worksheet to construct ray diagrams to show where images are formed by a converging (convex) lens and a diverging (concave lens). TRUE False 2. edu As you read through the response options, try to find the best answer. Introduction (Refraction and Lenses) 2. Optics QUIZ mirors/refraction 9. Maybe it's made of glass, maybe something else. Enlarged or Reduced? 5. An object is placed 1. d. Mirrors and Lenses 389 (2) The first image in the right-hand mirror serves as an object for the left-hand mirror. mirrors and lenses worksheet answers

spahvui, blwz, co6ya04, j4bsbvt, bwv3t, rms, ydwfp, hgtx, duqmuic, fjjqv, wgpqw,