Kinetic and Potential Energy Practice

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is the energy that has the potential to be converted into kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no energy is lost to air resistance.

Front

What is the relationship between kinetic and potential energy?

Back

Kinetic and potential energy are forms of mechanical energy. When one increases, the other decreases, keeping the total mechanical energy constant in a closed system.

Front

At what point does a roller coaster have the most kinetic energy?

Back

A roller coaster has the most kinetic energy at the lowest point of the track, where it is moving the fastest.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

When is potential energy at its maximum in a pendulum?

Back

Potential energy is at its maximum when the pendulum is at its highest point in its swing.

Front

What happens to energy in a closed system?

Back

In a closed system, the total energy remains constant; energy can change forms but the total amount does not change.