Electricity Test Review

Rubber and plastic are great

• conductors

• magnets

• insulators

• products

Select all that would be good conductors of electricity

• Copper

• Steel

• Aluminum

• Gold

• Rubber

a material through which current cannot move easily

• conductor

• magnet

• insulator

• wire

If the switch is open, the lamp will...

• turn on

• turn off

• get brighter

• dim

What would happen if I put the cardboard between the two batteries?

• The flashlight would work better

• Nothing would change

• The flashlight would not work

• The light would be dimmer.

After I take off my hat, my hair sticks up. What is happening?

• My hair removed positive charges from the hat.

• The hat removed positive charges from my hair.

• My hair removed negative charges from the hat.

• The hat removed negative charges from my hair.

For a balloon to stick to a wall, what charges must be in each?

• A mix of negative and positive charges in the wall and the balloon. + and -

• The wall has positive charges + and the balloon has negative -

• Both have all negative - charges

• both have all positive + charges

a lightbulb produces light and ______ energy.

• heat

• chemical

• magnetic

• mechanical

This circuit is designed to produce_______.

• magnetic force

• heat energy

• sound waves

• light energy

What is attracting the paper clips to the nail?

• heat energy

• gravity

• magnetic force

• sound energy