Kinetic energy

Front

What is kinetic energy?

Back

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

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv².

Front

How does mass affect kinetic energy?

Back

Kinetic energy is directly proportional to the mass of the object. If the mass increases, the kinetic energy increases, assuming velocity remains constant.

Front

How does velocity affect kinetic energy?

Back

Kinetic energy is proportional to the square of the velocity. If the velocity doubles, the kinetic energy increases by a factor of four, assuming mass remains constant.

Front

What is the unit of kinetic energy?

Back

The unit of kinetic energy is the Joule (J).

Front

Calculate the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s.

Back

7,500 J.

Front

Rearrange the equation for kinetic energy to make velocity the subject of the equation.

Back

v = √(2KE/m).

Front

How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?

Back

27 J.

Front

What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?

Back

50 kg.

Front

What is the kinetic energy of a ball with a mass of 5 kg rolling at 10 m/s?

Back

250 J.