journal #854/28/11
DESCRIPTION
Journal #854/28/11. 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. - PowerPoint PPT PresentationTRANSCRIPT
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Journal #85 4/28/11
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.
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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.
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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.
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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.
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8
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9
10
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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
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Homework Check Answers
1. 28.8 cm 6. -30.0 cm2. 13.3 cm 7. 4.4 cm3. -1.9 cm 8. B4. 26.7 cm 9. Abe, Bev, Cis5. 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.
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Pg. 469 (#13-16)
13. di = 28.8 cm14. di = 13.3 cm ; hi = -2.0 cm15. hi = -1.9 cm16. do = 26.7 cm ; ho = 5.0 cm
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Pg. 472 (#17-21)
17. di = -8.57 cm18. di = -10.7 cm ; hi = 1.1 cm19. f = -96 cm20. di = -12.7 cm ; hi = 4.4 cm21. f = -0.60 m
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Eva - HanDon - HanCis - HanBev - GuyAbe - Flo
Abe - EvaAbe - DonAbe - Cis
Abe - DonAbe - CisAbe , BevAbe , HanGuy , HanFlo - HanEva - HanDon - Han
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Eva - HanDon - HanCis - HanBev - GuyAbe - Flo
Abe - EvaAbe - DonAbe - Cis
Abe - DonAbe - CisAbe , BevAbe , HanGuy , HanFlo - HanEva - HanDon - Han
A B C D E F G H
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Eva Eva , Flo
Cis, Don, Flo, Eva
Abe, Bev, Cis, Don, EvaCis, Don, Eva
Bev, Cis
Everyone ElseEveryone ElseAbe, Bev
Abe, Bev, FloFlo
Abe, Don, Eva, Flo
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No