Kinetic Energy

Front

What is Kinetic Energy?

Back

Kinetic Energy (KE) is the energy that 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

How is Kinetic Energy calculated?

Back

Kinetic Energy is calculated using the formula KE = 1/2 mv², where KE is kinetic energy, m is mass in kilograms, and v is velocity in meters per second.

Front

What happens to Kinetic Energy when mass increases?

Back

As mass increases, Kinetic Energy increases, assuming velocity remains constant.

Front

What happens to Kinetic Energy when velocity increases?

Back

Kinetic Energy increases significantly with an increase in velocity, as it is proportional to the square of the velocity.

Front

If an object has a mass of 10 kg and moves at 2 m/s, what is its Kinetic Energy?

Back

20 Joules (KE = 1/2 * 10 kg * (2 m/s)² = 20 J).

Front

What is the relationship between mass and Kinetic Energy?

Back

Kinetic Energy is directly proportional to mass; if mass increases, Kinetic Energy increases.

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

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

Back

27 Joules (KE = 1/2 * 6 kg * (3 m/s)² = 27 J).

Front

What is the Kinetic Energy of an 8 kg dog running at 10 m/s?

Back

400 Joules (KE = 1/2 * 8 kg * (10 m/s)² = 400 J).

Front

Calculate the Kinetic Energy of a 500 kg polar bear running at 11 m/s.

Back

30,250 Joules (KE = 1/2 * 500 kg * (11 m/s)² = 30,250 J).