TEST PRACTICE - Potential and Kinetic Energy

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is Potential Energy?

Back

Potential Energy is the stored energy of an object due to its position or state. It can be converted into kinetic energy.

Front

How is Kinetic Energy calculated?

Back

Kinetic Energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

What factors affect Kinetic Energy?

Back

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

Front

What is an example of Kinetic Energy?

Back

A ball rolling across the floor is an example of Kinetic Energy.

Front

What is an example of Potential Energy?

Back

A boulder sitting at the top of a hill is an example of Potential Energy.

Front

If two objects have the same mass, how does speed affect their Kinetic Energy?

Back

The object with the higher speed will have more Kinetic Energy, as KE is proportional to the square of the speed.

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 the relationship between Kinetic and Potential Energy?

Back

Kinetic and Potential Energy are forms of mechanical energy; they can convert into each other, such as in a swinging pendulum.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).