Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What are the two main types of energy?

Back

Kinetic energy (energy of motion) and potential energy (stored energy).

Front

Which object has more potential energy: a ball on the ground or a ball high in the air?

Back

A ball high in the air has more potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

When a car is moving, what type of energy does it have?

Back

Kinetic energy.

Front

What happens to potential energy when an object falls?

Back

It is converted to kinetic energy.

Front

What does it mean to convert energy?

Back

To change energy from one form to another.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object.

Front

If a bicycle has 3 joules of potential energy and 5 joules of kinetic energy, what is its total mechanical energy?

Back

8 joules.