Kinetic and Potential Energy Review

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy an object possesses due to its motion. It depends on the mass and speed of the object.

Front

What is Potential Energy?

Back

Potential Energy is the stored energy in an object due to its position or state. It is often associated with height or condition.

Front

What is the formula for Kinetic Energy?

Back

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

Front

What is the formula for Potential Energy?

Back

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

Front

What unit is used to measure energy?

Back

The unit used to measure both Kinetic and Potential Energy is the Joule.

Front

How does height affect Potential Energy?

Back

The higher an object is, the greater its Potential Energy, because it has more stored energy due to its position.

Front

What happens to Kinetic Energy as speed increases?

Back

As speed increases, Kinetic Energy increases exponentially, since it is proportional to the square of the speed.

Front

What is the relationship between Kinetic and Potential Energy in a falling object?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases, keeping the total mechanical energy constant (in a closed system).

Front

What is Work in terms of energy?

Back

Work is done when a force is applied to an object, causing it to move. It is a transfer of energy.

Front

What is the principle of conservation of energy?

Back

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