Topic 7 Test

1.) Plan a simple circuit that includes a battery, a switch, and a light bulb. Explain how energy is transferred in this circuit.

• Energy is transferred from the battery to the switch and then to the light bulb
• Energy is transferred from the light bulb to the battery
• Energy is transferred from the switch to the battery
• Energy is transferred from the light bulb to the switch

Tags

NGSS.MS-PS3-5

2.) Which of the following is a property of a good insulator?

• High electrical conductivity
• Low electrical conductivity
• High thermal conductivity
• Low thermal conductivity

Tags

NGSS.MS-PS3-3

3.) Objects that have opposite charges

• are attracted to each other, and the force between the objects pulls them together.
• are attracted to each other, and the force between the objects pushes them apart.
• are repelled by each other, and the force between the objects pulls them together.
• are repelled by each other, and the force between the objects pushes them apart.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

4.) Which material is most likely to conduct electricity?

• Rubber
• Copper
• Wood
• Plastic

5.) Lighting is a form of static electricity.

• True
• False
• Maybe
• I do not know.

6.) What types of charges attract?

• Positive and Positive
• Positive and Negative
• Positive and Neutral
• Negative and Neutral

Tags

NGSS.MS-PS2-3

7.) Which of the following materials is an insulator?

• Aluminum
• Rubber
• Copper
• Silver

8.) What happens to the magnetic field when the electric current in a wire is increased?

• The magnetic field decreases
• The magnetic field increases
• The magnetic field remains the same
• The magnetic field disappears

Tags

NGSS.MS-PS2-3

9.) Choose an experiment to show how static electricity can be generated by friction.

• Rub a balloon on your hair and observe the attraction to small paper pieces
• Use a battery to light a bulb
• Connect a wire to a magnet
• Place a metal rod in water

10.) Mrs. Effrein rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.
• The balloons will attract each other.
• The balloons will become positively (+) charged.
• The balloons will pop.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5