Energy Review

Front

What is energy transfer?

Back

Energy transfer is the process of energy moving from one place to another or changing from one form to another.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a rock on a ledge has potential energy because of its height.

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 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.

Front

What is an example of potential energy?

Back

A rock sitting on top of a high ledge is an example of potential energy.

Front

What is an example of kinetic energy?

Back

A football flying through the air is an example of kinetic energy.

Front

What force causes a change in direction of an object?

Back

A force applied to an object, such as the batter's force on the ball with the bat, causes a change in direction.

Front

What happens to potential energy when an object falls?

Back

When an object falls, its potential energy decreases while its kinetic energy increases.

Front

What is the role of a lightbulb in energy transfer?

Back

A lightbulb transfers energy from electricity into light and heat.

Front

What is the greatest potential energy point in a roller coaster?

Back

The highest point of the roller coaster has the greatest potential energy.