1 Two like charges: a Attract each other b Repel each other c Must be neutrons d

ID: 1464082 • Letter: 1

Question

1 Two like charges:

a Attract each other

b Repel each other

c Must be neutrons

d Neutralize each other

2 When a plastic rod is rubbed with fur, the rod will become negatively charged. Which of the following best explains how this happens?

a Electrons are transferred from the plastic rod to the fur.

b Electrons are transferred from the fur to the plastic rod.

c Negative charges are created on the plastic rod.

d Positive charges are removed from the plastic rod.

3 What is characteristic of a good insulator?

a Electrons are usually not moving at all.

b Electrons are free to move around.

c Electrons are semi-free to move around.

d Electrons are tightly bound to the nuclei.

4 In a solid conductor such as a metal, what is the cause of an electric current?

a A flow of positive and negative charges.

b A flow of positive charges only.

c A flow of negative charges only.

d A flow of protons.

e A flow of neutrons.

1.b

2.b

3.d

4.c

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