HMH Grade 4 Unit 2: Energy

Front

What do you need to produce light in a circuit?

Back

A battery that has energy.

Front

Electrical Energy is transferred to _____ Energy.

Back

Mechanical Energy.

Front

What energy transformation occurs when a lamp is functioning correctly?

Back

Electrical to light.

Front

What is the energy transformation in an electric pencil sharpener?

Back

Electrical energy to mechanical energy.

Front

Mechanical Energy is transferred to _____ Energy.

Back

Electrical Energy.

Front

What is energy?

Back

The ability to do work or cause change.

Front

What is a circuit?

Back

A closed path through which electric current flows.

Front

What is a battery?

Back

A device that stores chemical energy and converts it to electrical energy.

Front

What is an insulator?

Back

A material that does not allow electricity to flow through it easily.

Front

What is a switch?

Back

A device that can open or close a circuit.