Energy

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic and potential energy.

Front

What is potential energy?

Back

Potential energy is the stored energy an object has due to its position or condition. For example, a roller coaster at the top of a hill has potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What happens to energy when a roller coaster goes down a hill?

Back

As the roller coaster goes down, potential energy is converted into kinetic energy, making it go faster.

Front

What is energy transfer?

Back

Energy transfer is the movement of energy from one place or object to another. For example, when a ball is thrown, energy is transferred from the thrower to the ball.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

How does mass affect kinetic energy?

Back

The more mass an object has, the more kinetic energy it has when moving at the same speed as a lighter object.

Front

What is an example of energy changing forms?

Back

When a light bulb is turned on, electrical energy is converted into light energy and heat energy.

Front

Do all living things need energy?

Back

Yes, all living things need energy to move, grow, and change.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.