Kinetic Energy Calculations

Front

What is Kinetic Energy?

Back

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

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy is calculated using the formula KE = 1/2 mv².

Front

What is the unit of Kinetic Energy?

Back

The unit of Kinetic Energy is Joules (J).

Front

If a soccer ball has a mass of 0.43 kg and a velocity of 10 m/s, what is its Kinetic Energy?

Back

21.5 J.

Front

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

Back

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

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.

Front

How can you rearrange the Kinetic Energy formula to solve for mass?

Back

m = 2KE/v².

Front

What is the Kinetic Energy of an object at rest?

Back

The Kinetic Energy of an object at rest is 0 J, since its velocity is 0.

Front

What is the difference between Kinetic Energy and Potential Energy?

Back

Kinetic Energy is the energy of motion, while Potential Energy is the stored energy based on an object's position or state.

Front

At what point does a diver have the greatest Kinetic Energy during a dive?

Back

The diver has the greatest Kinetic Energy just before hitting the water.