Energy basics

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

The two main types of energy are potential energy and kinetic energy.

Front

What is potential energy?

Back

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

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is an example of potential energy?

Back

A rock at the top of a hill has potential energy.

Front

What is an example of kinetic energy?

Back

A moving car has kinetic energy.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases and its kinetic energy increases.

Front

What is gravitational force?

Back

Gravitational force is the force that pulls objects toward each other, like the Earth pulling us down.

Front

How can you increase kinetic energy?

Back

You can increase kinetic energy by increasing the mass or speed of the object.

Front

What does a hairdryer do with energy?

Back

A hairdryer converts electrical energy into thermal energy.