Energy

Mrs. Hickey pushes a pen off her desk. What happens to the mechanical energy of the pen as it falls?

• It increases
• It looses kinetic energy
• It gains potential energy
• It stays the same

Which is true about kinetic energy?

• Kinetic energy is the energy of motion
• It is the energy of rest
• Kinetic energy will cause motion in an object at rest
• Kinetic energy is the total amount of potential energy and   mechanical energy

Which object produces light energy and heat energy but NOT sound energy?

• computer
• desk lamp
• power drill
• radio

Ashley is turning the propeller of her toy plane. By doing this, she twists a rubber band. She has to hold the propeller of the plane (which is located in the front portion) to keep the rubber band from turning it. When Ashley lets go of the propeller what happens to its energy? 

• Kinetic energy decreases
• Potential energy increases
• Kinetic energy changes into electrical energy
• Potential energy changes into kinetic energy

Which object is electrical energy changed into sound energy and kinetic energy?

• fan
• table lamp
• television 
• radio

What would most likely refract light?

• grass
• mud
• ocean
• snow

When a television is turned on what happens to the electrical energy that powers it?

•   It changes into light energy 
• It changes into sound and potential energy
• It changes into light and potential energy
• It changes into light, sound, and heat energy

Which is the INCORRECT notes about energy?

• Potential energy is stored energy
• Kinetic energy is the energy of motion
• Electrical Energy is stored energy
• Mechanical Energy is stored energy

As James begins to move down the slide, which statement is true?

• James looses kinetic energy
• James gains potential energy
•   Potential energy is about to change 
• Mechanical energy is about to change

For Stephen’s science project, he recorded how his family uses energy in his house. Which statement needs to be changed?

• Light energy comes from light bulbs only
• Electrical energy makes some appliances run
• Sound energy is used when talking to others
• Heat energy is used to cook and worm the house