1. Journal #854/28/11 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. DO NOT USE YOUR NOTES. EITHER USE YOUR MEMORY OR DRAW A PICTURE.

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

7. 9 10

8. 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

9. Homework Check Answers 1. 28.8 cm6. -30.0 cm 2. 13.3 cm7. 4.4 cm 3. -1.9 cm8. B 4. 26.7 cm9. Abe, Bev, Cis 5. 1.1 cm10. 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.

10. Pg. 469 (#13-16) 13. d i = 28.8 cm 14. d i = 13.3 cm ; h i = -2.0 cm 15. h i = -1.9 cm 16. d o = 26.7 cm ; h o = 5.0 cm

11. Pg. 472 (#17-21) 17. d i = -8.57 cm 18. d i = -10.7 cm ; h i = 1.1 cm 19. f = -96 cm 20. d i = -12.7 cm ; h i = 4.4 cm 21. f = -0.60 m

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

18. Eva - Han Don - Han Cis - Han Bev - Guy Abe - Flo Abe - Eva Abe - Don Abe - Cis Abe - Don Abe - Cis Abe, Bev Abe, Han Guy, Han Flo - Han Eva - Han Don - Han ABCDEFGH

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

21. No