a force that lubricates the sliding of two surfaces
a force that allows two surfaces to slide that are not touching each other
a forces that transforms the sliding of two surfaces to make it easier.
9. Multiple Choice
1 minute
1 pt
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed." Which law is this?
Law of Conservation of Mass
Newton's Second Law
Law of Conservation of Energy
Newton's Third Law
10. Multiple Choice
30 seconds
1 pt
Can energy be created or destroyed?
Yes
No
11. Multiple Choice
30 seconds
1 pt
You have just turned on a fan. What type of energy is this?
Electric
Radiant
Nuclear
Thermal
12. Multiple Choice
1 minute
1 pt
Thermal energy is...
burning logs
turning on a fan
sun energy
splitting of nuclei
13. Multiple Choice
30 seconds
1 pt
This makes it harder to move objects along a surface