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Demo: String reflecting on mirror,

Supplies:. Print:. 7. Demo: String reflecting on mirror,. Warm-Up Exercise. Currently in the classroom, find an object that is Opaque Translucent Transparent. Agenda. LESSON: Mirrors, Law of Reflection, Magnification Classwork. Review. Angles in Mirrors. Law of Reflection.

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Demo: String reflecting on mirror,

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  1. Supplies: Print: 7 Demo: String reflecting on mirror,

  2. Warm-Up Exercise • Currently in the classroom, find an object that is • Opaque • Translucent • Transparent

  3. Agenda • LESSON: Mirrors, Law of Reflection, Magnification • Classwork

  4. Review • .

  5. Angles in Mirrors

  6. Law of Reflection

  7. Rules for Drawing Plane Mirrors

  8. Images in the Mirror • What is the distance from the mirror to the Virtual Image? • How are the images different?

  9. Complete the Diagram Below Demonstrating Mirror-Reflections WORD

  10. Complete the Diagram Below Demonstrating Mirror-Reflections Science See folding paper trick…

  11. Reflections using Mirrors • The line of sight principle • in order to view an image of an object in a mirror, a person must sight along a line at the image of the object. • How many people can be seen in the mirror by: • A? • B? • C?

  12. WARMUP Draw the reflection of light rays on the plane mirror. Use normal lines to guide your work

  13. Curved Mirrors

  14. Draw the light rays from the source

  15. Positions on Curved Mirrors

  16. Positions on a Curved Mirrors

  17. The distance between the vertex and the object is represented by do • The distance between the vertex and the image is di • The height of the object is ho • The height of the image is hi • The focal length (f) is the distance from the vertex to the focal point of a curved mirror • A real image is an image formed by light rays that come from a location of the image.

  18. Curved Mirrors • The distance between the vertex and the object is represented by do • The distance between the vertex and the image is di • The height of the object is ho • The height of the image is hi • The focal length (f) is the distance from the vertex to the focal point of a curved mirror • A real image is an image formed by light rays that come from a location of the image.

  19. Concave Mirrors • Also called a converging mirror, a concave mirror has a surface that curves inward like a bowl. • The closer the object gets to the focal point, the larger the image becomes

  20. Uses for Concave Mirrors • Flashlight-to produce a parallel beam • Headlights-to produce a parallel beam of light that can be directed down or straight

  21. Solar Energy • http://www.youtube.com/watch?v=qYeynLy6pj8

  22. Magnification • The measure of how much larger or smaller an image is compared with the object itself. • We can measure it using: • Magnification=image height • object height

  23. Distance can be measured the same way: • Magnification= Image distance • Object distance • OR • Equation: M= hi • ho

  24. Example Magnification • A microscope produces an image that is 5.50 x 10ˉ4 m high from an object that is 2.00 x 10ˉ6 m high. What is the magnification of this microscope?

  25. Solution • Equation: M= hi • ho • M=5.5 x 10ˉ4 m • 2.00 x 10ˉ6 m • =275 • The magnification of the microscope is 275 times.

  26. Convex Mirrors • Mirror with a surface curved outwards

  27. Convex Ray Diagram

  28. The first ray (red) travels from a point on the object parallel to the principal axis. • The second ray (blue) travels from a point on the object toward the focal point

  29. Class work • Pg. 433 #1,2,7,12

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