Potential Energy and Kinetic Energy

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or height. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object in motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating Potential Energy?

Back

PE = mgh, where m is mass, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is height.

Front

What is the formula for calculating Kinetic Energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

If a marble has a mass of 0.3 kg and is at a height of 2.3 m, how much potential energy does it have?

Back

6.9 J (calculated using PE = mgh).

Front

What type of energy does an object have at the top of a hill?

Back

Gravitational Potential Energy.

Front

What is an example of Kinetic Energy?

Back

A moving car.

Front

How much Kinetic Energy does a 6 kg object moving at 3 m/s have?

Back

27 J (calculated using KE = 1/2 mv²).

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases.

Front

What is Gravitational Potential Energy?

Back

Gravitational Potential Energy is the potential energy an object possesses because of its height in a gravitational field.