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Demo:

Supplies:. Print:. 11. Demo:. Concave Review. SALT. Size of IMAGE (compared to object) Attitude Location Type. Concave Review. Warmup. “Objects in the rearview mirror may appear closer than they are.”

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Demo:

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Presentation Transcript

  1. Supplies: Print: 11 • Demo:

  2. Concave Review

  3. SALT • Size of IMAGE (compared to object) • Attitude • Location • Type

  4. Concave Review

  5. Warmup “Objects in the rearview mirror may appear closer than they are.” • What kind of mirror do you suppose is used in a rear-view mirror for he driver and passenger of a vehicle? • Why do you suppose they use this type of mirror? • Why do objects appear closer?

  6. Images in Spoons Complete the diagram below and the “SALT” Table

  7. Convex Mirror

  8. Convex Mirror

  9. Convex Mirror

  10. Convex Mirror Draw a stick-man to the right of a convex mirror. Use a ray-diagram to depict his image

  11. Convex Mirror Draw a an object of your choice to the right of a convex mirror. Use a ray-diagram to depict his image

  12. Convex Mirrors • Now the F (virtual focus) and C are behind the mirror • Light rays seem to come from an apparent light source behind the mirror (virtual image)

  13. Uses of Convex Mirrors Security Mirrors Side Mirrors

  14. Rules for Drawing Images • A ray parallel to the principal axis is reflected as if it had come through the focus • A ray aimed at the centre of curvature is reflected back upon itself • A ray aimed at the focus is reflected parallel to the principal axis

  15. Diagram 1

  16. Diagram 2

  17. Diagram 3

  18. Real & Virtual Images • Real image = an image that appears in front of the mirror and can be projected onto a screen • Virtual image = an image that appears to be behind the mirror and cannot be projected onto a screen

  19. Summary of Types of Images

  20. Convex Mirrors • http://www.edumedia-sciences.com/en/a309-convex-mirror

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