Practice with Kinetic & Potential Energy

Front

What is the formula for calculating kinetic energy?

Back

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

Front

What is the kinetic energy of an object with a mass of 2 kg moving at a speed of 3 m/s?

Back

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

Front

What is the definition of potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How does height affect potential energy?

Back

Potential energy increases with height; the higher an object is, the more potential energy it has.

Front

What is the potential energy of a 5 kg object at a height of 10 m?

Back

The potential energy is 490 J (PE = 5 kg * 9.8 m/s² * 10 m).

Front

What is the relationship between kinetic energy and velocity?

Back

Kinetic energy is proportional to the square of the velocity; if velocity doubles, kinetic energy increases by a factor of four.

Front

What type of energy does a compressed spring represent?

Back

A compressed spring represents elastic potential energy.

Front

What is the total mechanical energy of an object?

Back

Total mechanical energy is the sum of kinetic energy and potential energy in a system.

Front

How can energy be transformed from potential to kinetic?

Back

Energy can be transformed from potential to kinetic when an object falls or moves from a higher position to a lower position.