CHAPTER 7 QUIZ ANSWERS
1. C
2. D
3. B
4. C
5. A
6. C
7. B
8. C
9. A
10. B
11. F
12. C
13. G
14. A
15. D
16. B
17. (a) The force increases.
(b) The force decreases.
(c) The force decreases.
18. The number and position of (+) signs should remain the same in both (a) and (b).
(a) The electrons in the object should be grouped toward the right side.
(b) Some of the electrons from the object should have transferred to the rod.
19. Rub the acetate with a paper towel so that the acetate becomes negatively charged. Bring the charged
acetate near the Styrofoam? chips. If the chips repel, then the chips are negatively charged. If the chips
attract, then the chips are positively charged.
1. C
2. D
3. B
4. C
5. A
6. C
7. B
8. C
9. A
10. B
11. F
12. C
13. G
14. A
15. D
16. B
17. (a) The force increases.
(b) The force decreases.
(c) The force decreases.
18. The number and position of (+) signs should remain the same in both (a) and (b).
(a) The electrons in the object should be grouped toward the right side.
(b) Some of the electrons from the object should have transferred to the rod.
19. Rub the acetate with a paper towel so that the acetate becomes negatively charged. Bring the charged
acetate near the Styrofoam? chips. If the chips repel, then the chips are negatively charged. If the chips
attract, then the chips are positively charged.