Energy Review

Energy is defined as the ability to do

• events

• friction

• explosions

• work

Energy is measured in

• newtons

• joules

• hertz

• kilograms

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

__________ is stored energy. 

• Potential
• Kinetic
• None of the above 
• All of the above 

Elastic potential energy is energy stored in object that are compressed or __________. 

• movement
• stored
• harnessed
• pulled 

Energy can be _____________ or changed from one type to another.

• destroyed
• transferred
• created
• ignored

Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.

• a ball rolling down a ramp
• a picture hanging on the wall
• a swing swaying back and forth
• a coat hanging on a hook

An acorn hanging from an oak tree.

• Potential
• Kinetic

A moving car.

• Potential
• Kinetic

All of the following are examples of kinetic energy EXCEPT

• A car sitting in the parking lot

• An electric current running through a wire

• Loud music vibrating speakers

• A bird flying in the sky