Review: Conservation of Energy, KE and PE

Front

What is the Law of Conservation of Energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

Define Kinetic Energy (KE).

Back

The energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

Define Potential Energy (PE).

Back

The energy stored in an object due to its position or configuration, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What happens to Kinetic Energy as an object rises?

Back

As an object rises, its Kinetic Energy decreases while its Potential Energy increases.

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases.

Front

What is the formula for calculating Kinetic Energy?

Back

KE = 1/2 mv².

Front

What is the formula for calculating Potential Energy?

Back

PE = mgh.

Front

At what point is Potential Energy greatest in a free-falling object?

Back

At the highest point before it begins to fall.

Front

What type of energy transfer occurs when an object is dropped?

Back

Gravitational Potential Energy transforms into Kinetic Energy.

Front

What happens to energy when a book falls and hits the floor?

Back

The Potential Energy converts to Kinetic Energy and then to thermal energy and sound upon impact.