Potential and Kinetic Energy

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. It can be gravitational potential energy, elastic potential energy, or chemical potential energy.

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy is directly proportional to the mass of the object. As mass increases, kinetic energy increases if velocity remains constant.

Front

What is the relationship between velocity and kinetic energy?

Back

Kinetic energy is proportional to the square of the velocity. If velocity doubles, kinetic energy increases by a factor of four.

Front

What type of energy does a skydiver have when falling?

Back

A skydiver has kinetic energy due to their motion as they fall.

Front

What type of energy does a car have when parked at the top of a hill?

Back

A car parked at the top of a hill has gravitational potential energy due to its elevated position.

Front

What is an example of potential energy in everyday life?

Back

An example of potential energy is a stretched rubber band, which has elastic potential energy.

Front

What happens to potential energy as an object falls?

Back

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