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Mirrors and Lenses Review Worksheet: !
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Ray Diagrams: 1. Draw ray parallel, then through f 2. Draw ray through f, then parallel 3. Draw ray through c I can explain how convex and concave mirrors reflect light, draw ray diagrams, and calculate distances and magnification using the mirror equation. 1. Sketch a concave mirror with multiple parallel light rays hitting it and reflecting 2. Repeat for a convex mirror. 3. How do your diagrams in #1 and #2 show the focal point? How is the focal point between and convex and concave mirror different? 4. What is the difference between a real and virtual image? 5. Give a real life example of when you might see a convex mirror. Concave? 6. Why will an image never form if an object is at the focal point? Draw a ray diagram to support your answer. 7. An object is placed outside c of a concave mirror. Draw a ray diagram showing the image that is formed. 8. An object is placed at any point in front of a convex mirror. Draw the ray diagram showing the image that is formed. 9. An object that is 2.5 cm tall is placed 2 cm in front of a concave mirror. The concave mirror has a focal point of 5 cm. How far away from mirror is the image? What is the magnification? How tall is the image? I can explain how convex and concave lenses refract light, draw ray diagrams, and calculate distances and magnification using the lens equation. 10. Sketch a concave lens with multiple parallel light rays hitting it and refracting 11. Repeat for a convex lens. 12. How do your diagrams in the previous questions show the focal point? 13. Why do lenses have two focal points when mirrors only have one? 14. What is the difference between being nearsighted and far sighted, in terms of where an image is formed compared to a person’s retina? 15. Would a converging lens help someone that is nearsighted or farsighted? 16. Draw a ray diagram of an image formed by a concave lens. 17. Draw a ray diagram of an object that is between 2f and f. 18. An object that is 18 cm tall is 8 cm away from a convex lens. The focal point of the lens is 6 cm. Where is the image? What is the magnification? The image height?