Harnessing Human Energy Review

Front

What is energy conversion?

Back

Energy conversion is the process of changing energy from one form to another, such as converting electrical energy into light energy.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a skier at the top of a mountain 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 type of energy does a wind-up toy have when it is wound up but not released?

Back

The wind-up toy has potential energy when it is wound up but not released.

Front

What is an example of kinetic energy?

Back

An example of kinetic energy is a moving car or a running athlete.

Front

How does height affect potential energy?

Back

The higher an object is positioned, the more potential energy it has due to the gravitational force acting on it.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the relationship between potential and kinetic energy?

Back

Potential energy can be converted into kinetic energy when an object moves. For example, a falling object converts potential energy to kinetic energy.

Front

What is an example of energy conversion in everyday life?

Back

An example of energy conversion is a light bulb converting electrical energy into light energy.

Front

What type of energy does a stretched rubber band have?

Back

A stretched rubber band has potential energy due to its position and tension.