Physic Chapter 22

Quiz 7 Chapter 22

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1.

____A______ Two charges separated by one meter exert 1-N forces on each other. If the magnitude of each charge is doubled, the force on each charge is

A. 4 N.

B. 8 N.

C. 1 N.

D. 2 N.

E. None of the above choices are correct.

2.

____B_______ If you use 10 J of work to push a coulomb of charge into an electric field, its voltage with respect to its starting position is

A. less than 10 V.

B. 10 V.

C. more then 10 V.

D. None of the above choices are correct.

3.

_E__________ Superconductors are noted for their

A. bright colors.

B. low cost.

C. high electric resistance.

D. low electric resistance.

E. absence of electric resistance.

4.

___A________ To say that electric charge is quantized is to say that the charge on an object

A. is a whole-number multiple of the charge of one electron.

B. is sometimes positive.

C. will interact with neighboring electric charges.

D. may occur in an infinite variety of quantities.

E. can be neither created nor destroyed.

5.

___E________ A conductor differs from an insulator in that a conductor

A. has faster moving molecules.

B. has more electrons than protons.

C. has more energy than an insulator.

D. has more protons than electrons.

E. none of these

6.

____A__ Charge carriers in a metal are electrons rather than protons because electrons are

A. loosely bound.

B. negative.

C. smaller.

D. all of these

E. none of these

7.

__A_________ Particle A has twice the charge of nearby particle B. Compared to the force on Particle A, the force on Particle B is

A. the same.

B. four times as much.

C. twice as much.

D. half as much.

E. None of the above choices are correct.

8.

_____B______ The electrical force between charges depends only on the charges'

A. magnitude.

B. magnitude and separation distance.

C. separation distance.

D. None of the above choices are correct.

9.

____A_______ The...