Kinetic Energy Calculation Flashcard

Front

What is kinetic energy?

Back

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

Front

What is the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy (KE) is KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

How does mass affect kinetic energy?

Back

Kinetic energy is directly proportional to the mass of the object; as 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; as the velocity increases, the kinetic energy increases exponentially.

Front

Calculate the kinetic energy of an object with a mass of 10 kg moving at 2 m/s.

Back

Using the formula KE = 1/2 mv², KE = 1/2 * 10 kg * (2 m/s)² = 20 J.

Front

If a bicycle has a mass of 15 kg and is traveling at 4 m/s, what is its kinetic energy?

Back

The kinetic energy is 120 J, calculated using KE = 1/2 * 15 kg * (4 m/s)².

Front

What is the kinetic energy of a 2 kg ball moving at 3 m/s?

Back

The kinetic energy is 9 J, calculated using KE = 1/2 * 2 kg * (3 m/s)².

Front

A skateboarder with a mass of 60 kg is moving at 5 m/s. What is their kinetic energy?

Back

The kinetic energy is 750 J, calculated using KE = 1/2 * 60 kg * (5 m/s)².

Front

What is the kinetic energy of a horse with a mass of 224 kg moving at 15 m/s?

Back

The kinetic energy is 25,200 J, calculated using KE = 1/2 * 224 kg * (15 m/s)².

Front

If a car has a mass of 1000 kg and is moving at a velocity of 10 m/s, what is its kinetic energy?

Back

The kinetic energy is 50,000 J, calculated using KE = 1/2 * 1000 kg * (10 m/s)².