Electricity Review

Traveling through a wire is an example of electricity that is

• a force applied by a simple machine

• energy flowing through the water cycle

• energy being transferred from place to place

• Earth's gravitational pull on an object

A toaster changes electrical energy to

• sound energy

• thermal energy

• magnetic energy

• solar energy

Tags

NGSS.MS-PS3-3

A student stands outside on a cold winter day. His hands become cold and he rubs them together to make them warmer. Which statement explains why rubbing his hands together makes them warmer?

• This action reduces the amount of thermal energy transferred to the air.

• This action produces thermal through friction.

• This action captures thermal energy from the environment.

• This action conducts thermal energy from the body.

Tags

NGSS.MS-PS3-5

Which form of energy is produced when paper is burned.

• chemical

• electrical

• magnetic

• thermal

The photo shows water boiling in a metal pan with a wooden handle sitting on a hot stove burner. Why is the handle of the pan made of wood?

• Because it looks like the wooden kitchen floor.

• The wood will burn.

• If the pan had a metal handle, the person using it might get burned.

• The wood conducts heat faster than metal.

Tags

NGSS.MS-PS3-3

The light bulb in circuit A is not lit. The light bulb in circuit B is lit. Use the photo to answer the question. Which answer does Not explain why the light bulb is lit in circuit B.

• There is a continuous path for the electricity to flow.

• It is a closed circuit.

• The battery is dead.

• It is a complete circuit.

Use the photo to answer the question. In this experiment, what kind of energy is changed directly into magnetic energy?

• thermal energy

• light energy

• chemical energy

• electrical energy

Tags

NGSS.MS-PS2-3

Which material is the best conductor of electricity?

• wood

• glass

• plastic

• metal

Which is a transfer of energy that can occur without matter?

• Conduction

• Current

• Convection

• Radiation

Cooking an egg in boiling water is an example of what type of thermal energy?

• solar

• conduction

• convection

• radiation