8th Grade Potential and Kinetic Energy

Front

What is Kinetic Energy (KE)?

Back

Kinetic Energy is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Potential Energy (PE)?

Back

Potential Energy is the stored energy in an object due to its position or state. It is often associated with gravitational energy, calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What type of energy does a moving car have?

Back

A moving car has Kinetic Energy because it is in motion.

Front

What type of energy does a book on a shelf have?

Back

A book on a shelf has Potential Energy because it is elevated and has the potential to fall.

Front

How does height affect Potential Energy?

Back

The higher an object is, the more Potential Energy it has, as PE = mgh increases with height (h).

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases, conserving the total mechanical energy.

Front

What is the relationship between Kinetic Energy and speed?

Back

Kinetic Energy increases with the square of the speed; if speed doubles, Kinetic Energy increases by a factor of four.

Front

What type of energy is present when a roller coaster is at the top of a hill?

Back

At the top of a hill, a roller coaster has maximum Potential Energy and minimum Kinetic Energy.

Front

What type of energy is present when a basketball is in motion?

Back

When a basketball is in motion, it has Kinetic Energy.

Front

What is the formula for calculating Kinetic Energy?

Back

The formula for calculating Kinetic Energy is KE = 1/2 mv².