Energy

What is energy?

• nothing, it doesn't exist

• the ability to do work/move an object

• invisible

What 2 forms of energy does a fire produce?

• thermal energy

• heat energy

• mechanical energy

• light energy

When you are on a swing, and not moving, what kind of energy is that?

• mechanical energy in motion

• heat energy

• stored mechanical energy

• thermal energy

What type of energy does a radio give off?

• thermal energy

• sound energy

• mechanical energy

• light energy

______________ Energy is used to cook food

When light bounces off an object it is....

• reflection

• refraction

• transparent

The sun is our main source of light

• TRUE

• FALSE

How does sound travel?

• it doesn't travel

• in a straight line

• in waves

If your eyes are closed and someone drops an object, what type of energy would let you know what happened?

• mechanical energy

• light energy

• sound energy

• heat energy

______________ energy would cause an ice cube to melt