Kinetic and Potential Energy Review

Front

What is potential energy?

Back

Potential energy is stored energy that has the potential to do work. It is energy that an object possesses due to its position or condition.

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 its velocity.

Front

Give an example of potential energy.

Back

An example of potential energy is a pulled back string on an archer's bow.

Front

What happens to potential energy as a rock falls off a cliff?

Back

As the rock falls, its potential energy decreases while its kinetic energy increases.

Front

At the top of a roller coaster loop, what type of energy is greatest?

Back

At the top of a loop, potential energy is greatest.

Front

What is the relationship between potential energy and kinetic energy during a descent?

Back

During a descent, potential energy is converted into kinetic energy.

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 happens to the total mechanical energy in a closed system?

Back

In a closed system, the total mechanical energy (potential + kinetic) remains constant.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground.