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2122_HRW_0506

# 2122_HRW_0506 - AP Physics Chapter 21 and 22 Review Sheet 1...

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AP Physics Chapter 21 and 22 Review Sheet 1. A coulomb is the same as: A) an ampere/second B) half an ampere second 2 C) an ampere/meter 2 D) an ampere second E) a newton meter 2 2. The magnitude of the charge on an electron is approximately: 3. The magnitude of the total negative charge on the electrons in 1 kg of helium (atomic number 2, atomic mass 4) is: 4. A wire contains a steady current of 2 A. The number of electrons that pass a cross section in 2 s is:

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5. To make an uncharged object have a negative charge we must: A) add some atoms B) remove some atoms C) add some electrons D) remove some electrons E) write down a negative sign 6. When a hard rubber rod is given a negative charge by rubbing it with wool: 7. A conductor is distinguished from an insulator with the same number of atoms by the number of:
8. The diagram shows a pair of heavily charged plastic cubes that attract each other. Cube 3 is a conductor and is uncharged. Which of the following illustrates the forces between cubes1 and 3 and between cubes 2 and 3? 9. A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is attracted toward the rod we can conclude: A) the object is positively charged B) the object is negatively charged C) the object is an insulator D) the object is a conductor E) none of the above Page 3

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10. Two uncharged metal spheres, L and M, are in contact. A negatively charged rod is brought close to L, but not touching it, as shown. The two spheres are slightly separated and the rod is then withdrawn. As a result: 11. The leaves of a positively charged electroscope diverge more when an object is brought near the knob of the electroscope. The object must be:
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2122_HRW_0506 - AP Physics Chapter 21 and 22 Review Sheet 1...

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