Unit 2B Electricity and Magnetism Review Game

Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?

• a. friction
• b. static electricity
• c. potential energy
• d. magnetism

If you put a negative and a positive charge together they will

• a. do nothing
• b. attract
• c. repel

A boy pulls a sweater off over his head. His hair is attracted to the sweater due to

• a. magnetic force
• b. a heat transfer
• c. a chemical change
• d. an electrical charge

What material would be safest to use as an insulator to cover electrical wires?

• a. aluminum
• b. tin
• c. rubber
• d. water

Many electrical wires are wrapped with a plastic coating because plastic is

• a. less expensive than steel
• b. more dense than copper
• c. able to keep its shape
• d. a good insulator

Which of these substances conducts electricity the best?

• a. wood
• b. brick
• c. copper
• d. plastic

Why does static electricity move from you to a metal object after you have walked over new carpet?

• a. It is attracted to the metal.
• b. It is attracted to you.
• c. It is attracted to the carpet
• d. It is made in your shoes.

Which form of electric discharge appears in nature?

• a. rain
• b. ocean currents
• c. lightning
• d. volcanoes

The electrician in this picture is wearing rubber gloves for protection. The purpose of the rubber gloves is to

• a. keep the electrician dry
• b. create an electrical circuit
• c. produce electricity
• d. insulate the electrician

A class constructed this project. Which of these objects most likely made the light glow when connected to points X and Y?

• a. Plastic straw
• b. Cotton string
• c. Aluminum foil
• d. Rubber eraser