Energy 5.1

Front

What is energy?

Back

Energy is the ability to do work or to cause change.

Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion or position.

Front

What is work in terms of energy?

Back

Work is done when a force causes an object to move in the direction of the force.

Front

Can work be done if there is no movement?

Back

No, work cannot be done if there is no movement.

Front

What are the forms of energy?

Back

The main forms of energy include mechanical, thermal, chemical, electrical, radiant, and sound energy.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons.

Front

What is radiant energy?

Back

Radiant energy is the energy of electromagnetic waves, such as light.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What happens to batteries when they are used?

Back

Batteries store energy that is transferred to devices when used.