4S Ch. 8 Electricity and Magnetism

1. Which is conductor?

• a. a material through which an electric charge can move easily
• b. a material through which an electric charge moves slowly
• c. an electric charge in motion

2. Which is electric current?

• a. a material through which an electric charge can move easily
• b. a material through which an electric charge moves slowly
• c. an electric charge in motion

3. Which is insulator?

• a. a material through which an electric charge can move easily
• b. a material through which an electric charge moves slowly
• c. an electric charge in motion

4. What is the difference between a parallel circuit and a series circuit?

• a. parallel circuit has one path
• b. parallel circuit has no paths
• c. parallel circuit has two or more paths

5. What does the plastic over the metal wires in a circuit do?

• a. insulator that stops electric current flowing
• b. conductor that keeps electric current flowing
• c. it doesn't do anything

6. During the experiment, what happens when an insulator touched metal?

• a. The light bulb lights up
• b. The light bulb doesn't light up

7. During the experiment, what happens when an conductor touched metal?

• a. The light bulb lights up
• b. The light bulb doesn't light up

8. Which is an open circuit?

• a. When electricity can flow through wires to intended place
• b. When there is a break in the flow of electricity and energy can't get to its intended place

9. Which is an closed circuit?

• a. When electricity can flow through wires to intended place
• b. When there is a break in the flow of electricity and energy can't get to its intended place

10. You can wrap wire in an insulator and electricity can still flow through the wire.

• True
• False