Potential and Kinetic Energy

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object due to its motion. It depends on the speed of the object.

Front

What is Potential Energy?

Back

Potential Energy is the stored energy of an object based on its position or height.

Front

How is Kinetic Energy calculated?

Back

Kinetic Energy (KE) = 1/2 * mass (m) * velocity (v)^2.

Front

How is Potential Energy calculated?

Back

Potential Energy (PE) = mass (m) * gravity (g) * height (h).

Front

What factors affect Kinetic Energy?

Back

Kinetic Energy is affected by the mass of the object and the square of its speed.

Front

What factors affect Potential Energy?

Back

Potential Energy is affected by the mass of the object, the height above the ground, and the gravitational force.

Front

Give an example of Kinetic Energy.

Back

A moving car has Kinetic Energy due to its speed.

Front

Give an example of Potential Energy.

Back

A book on a shelf has Potential Energy due to its height above the ground.

Front

What happens to Kinetic Energy if the speed of an object doubles?

Back

If the speed doubles, the Kinetic Energy increases by a factor of four (since KE is proportional to the square of speed).

Front

What happens to Potential Energy if an object is lifted higher?

Back

If an object is lifted higher, its Potential Energy increases.