What type of energy does an asteroid falling to Earth have?
Kinetic energy
100
A window is an example of what type of material?
Transparent
200
What is potential energy?
Energy that is stored and does not cause change
200
What type of waves make up sound?
Vibrating waves
200
What can light travel through?
Empty space
200
What type of energy do tree branches high up in a tree have?
Potential energy
200
What type of material lets NO light pass through?
Opaque
300
What is kinetic energy?
Energy in motion
300
What has a higher pitch, a robin singing or a lion growling?
A robin singing
300
What color is visible when all colors are mixed?
White light
300
What type of energy does a stretched spring in a pinball machine have?
Elastic Potential Energy
300
What is refraction?
When lights bends
400
Name four facts about energy.
1. Energy cannot be made
2. Energy cannot be destroyed
3. Energy can change form
4. Energy can move from one object to another
400
What is sound?
A wave of vibrations
400
What type of waves make up light?
Electromagnetic waves
400
Four animals: a mouse, a dog, an elephant, and a squirrel are running in a race and going the same speed. Which animal has the greatest kinetic energy? Why?
The elephant because it has the most mass
400
Frosted glass is an example of what type of material?
Translucent
500
What is elastic potential energy?
Energy that is present when things are bent or stretched
500
How do sound waves travel?
In all different directions
500
How do light waves travel?
In a straight line
500
What type of energy does the food we eat have?
Potential energy
500
What is created when different colors disperse and refract at different angles?