8th Grade Energy

Front

Which word describes the Energy of Motion?

Back

Kinetic Energy

Front

Which word describes stored energy as a result of position?

Back

Potential Energy

Front

The formula for Potential Energy is PE = Mass x Gravity x Height If I have a ball that has a Mass of 2 kg, with a gravity of 9.8 m/s, and a height of 3 m off the ground, what is my Potential Energy?

Back

58.8 J

Front

A car is going down a ramp with a mass of 30 kg and a velocity of 10 m/s. What is its kinetic energy?

Back

1500 J

Front

Potential energy depends on:
- mass and height
- height and speed
- mass and speed
- height and force

Back

mass and height

Front

Which skier will have a greater potential energy?

Back

Skier 1

Front

Gravitational potential energy depends on the ________ and ________ of the object.

Back

Height and mass

Front

What is the unit of measurement for energy?

Back

Joule

Front

Which of the following is an example of kinetic energy?

• A rock at the top of a hill
• A moving car
• A compressed spring
• A charged battery

Back

A moving car

Front

What happens to the gravitational potential energy of an object as it is raised to a higher elevation?

Back

It increases