Which of the following is the best example of increase on an object's potential energy?
A) Rolling a bowling ball
B) Turning on a light bulb
C) Stretching a rubber band
D) Dropping a pencil
Stretching a rubber band
100
Which of the following is a convertion from chemical energy to thermal energy?
A) Coal is burned at a power plant
B) Gasoline is burned in a car engine
C) Charcoal is burned in a BBQ pit.
D) All of the above.
All of the above
100
The law of _________________ of energy states that energy cannot be created or destroyed.
A) Transformation
B) Absorption
C) Conservation
D) Stability
Conservation
200
An object that has kinetic energy must be...
A) In space.
B) In motion.
C) At rest.
D) None of the above.
In motion
200
Which device(s) converts chemical energy to mechanical energy?
A) The Sun
B) Car
C) Jet ski
D) All of the above.
Car & Jet ski
200
Energy is...
A) When the surfaces of two objects rub against each other.
B) The ability to do work.
The ability to do work
300
Thermal energy is...
A) Kinetic.
B) Potential.
C) Both kinetic and potential.
D) Neither kinetic nor potential.
Kinetic
300
Matter can be changed into what?
Energy
Gravity
Motion
Light
Energy
400
As height increases, so does...
A) Thermal energy.
B) Mechanical energy.
C) Kinetic energy.
D) Potential energy.
Potential Energy
500
How many forms of energy are there?
A) 3
B) 8
C) 2
D) 9