Potential and Kinetic Energy

Front

What is Potential Energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a rock at the top of a hill 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

How is Potential Energy converted to Kinetic Energy?

Back

Potential energy can be converted to kinetic energy when an object moves from a higher position to a lower position, such as a roller coaster going down a hill.

Front

What is the formula for Kinetic Energy?

Back

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

Front

What factors affect Kinetic Energy?

Back

Kinetic energy is affected by two factors: mass and speed. More mass or higher speed results in greater kinetic energy.

Front

What is Gravitational Potential Energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground. It is calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transferred or transformed from one form to another.

Front

What happens to energy when a person walks up a hill?

Back

When a person walks up a hill, kinetic energy is converted into gravitational potential energy as they gain height.

Front

What is an example of energy transfer?

Back

An example of energy transfer is when a moving car hits a stationary object, transferring kinetic energy to the object.

Front

What is the relationship between height and Potential Energy?

Back

The higher an object is, the more potential energy it has due to its position in a gravitational field.