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Journal #85 4/28/11

Journal #85 4/28/11. DO NOT USE YOUR NOTES. EITHER USE YOUR MEMORY OR DRAW A PICTURE. Describe the image of an object at the center of curvature of a concave mirror. You should be able to tell me three things about this object. Ch. 17 Homework Check.

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Journal #85 4/28/11

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  1. Journal #85 4/28/11 DO NOT USE YOUR NOTES. EITHER USE YOUR MEMORY OR DRAW A PICTURE. Describe the image of an object at the center of curvature of a concave mirror. You should be able to tell me three things about this object.

  2. Ch. 17 Homework Check Take out your homework from pg. 469, pg. 472, and the worksheet. Take out a blank sheet of paper and a pencil and number your page 1 to 10.

  3. Homework Check pg. 469 1) In problem #13, give the image distance. 2) In problem #14, give the image distance. 3) In problem #15, give the height of the image. 4) In problem #16, give the object distance.

  4. Homework Check pg. 472 5) In problem #18, give the height of the image. 6) In problem #20, give the focal length. 7) In problem #20, give the height of the image.

  5. 8

  6. 10 9

  7. Trade Papers • Trade papers with someone at a DIFFERENT table than yourself • Right your name on the bottom of their paper • Only marked WRONG answers • Answers with no unit or the wrong unit are ½ wrong

  8. Homework Check Answers 1. 28.8 cm 6. -30.0 cm 2. 13.3 cm 7. 4.4 cm 3. -1.9 cm 8. B 4. 26.7 cm 9. Abe, Bev, Cis 5. 1.1 cm 10. Abe, Han Each answer is worth 10 points, put their grade out of 100 at the top of the page and return the page to them.

  9. Pg. 469 (#13-16) 13. di = 28.8 cm 14. di = 13.3 cm ; hi = -2.0 cm 15. hi = -1.9 cm 16. do= 26.7 cm ; ho= 5.0 cm

  10. Pg. 472 (#17-21) 17. di = -8.57 cm 18. di = -10.7 cm ; hi = 1.1 cm 19. f = -96 cm 20. di = -12.7 cm ; hi = 4.4 cm 21. f = -0.60 m

  11. Eva - Han Abe - Don Don - Han Abe - Cis Cis - Han Abe , Bev Bev - Guy Abe , Han Abe - Flo Guy , Han Abe - Eva Flo - Han Abe - Don Eva - Han Abe - Cis Don - Han

  12. A B C D E F G H Eva - Han Abe - Don Don - Han Abe - Cis Cis - Han Abe , Bev Bev - Guy Abe , Han Abe - Flo Guy , Han Abe - Eva Flo - Han Abe - Don Eva - Han Abe - Cis Don - Han

  13. Everyone Else Eva Eva , Flo Everyone Else Cis, Don, Flo, Eva Abe, Bev Cis, Don, Eva Abe, Bev, Flo Flo Abe, Bev, Cis, Don, Eva Bev, Cis Abe, Don, Eva, Flo

  14. No

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