What is the term used to describe the ability to cause change?
What is energy
100
When a rubber band is stretched, it has which type of energy?
What is Elastic Potential Energy
100
The amount of work done is the measure of force applied over _______.
a. speed
b. velocity
c. distance
d. acceleration
What is c. distance
100
A kite stuck in a tree has what type of energy?
a. potential
b. kinetic
c. chemical
d. thermal
What is a. potential energy
100
If a household uses 1,800 W each hour for 15 hours, how many kilowatt-hours are used?
What is 27 kWh
200
What term describes energy transfer that occurs when a force makes an object move in the direction of the force while the force is acting on the object?
What is work
200
If an object is not moving, it does not have what type of energy?
What is kinetic energy
200
Hot water is poured into the mug and the mug gets hot. This is an example of which type of energy?
a. mechanical
b. sound
c. thermal
d. radiant
What is c. thermal energy
200
When two atoms join together to give off a large amount of energy, nuclear fission has occured.
What is False. The correct answer is nuclear fusion.
200
If a household uses 3,200 W each hour for 8 hours, how many kilowatt-hours are used?
What is 25.6 kWh
300
What term describes energy in motion?
What is kinetic energy
300
What two factors have an effect on an objects kinetic energy?
What is mass and speed
300
Which of the following is an example of trying to increase friction?
a. squirting oil into door hinges
b. spreading grit on icy roads
c. waxing the underneath sides of skis
d. adding graphite to toy car axles
What is b. spreading grit on icy roads
300
Nuclear fission is the process of an atom of uranium splitting.
What is True
300
An electric company charges customers for the number of kilowatt-hours used. A household uses 2,400 W for 300 hours. How many kilowatt- hours will be on their electric bill?
What is 720 kWh
400
Which term describes stored energy due to interactions between objects or particles?
What is potential energy
400
Which two forms of energy are carried by waves?
What is sound and radiant energy
400
Marcy uses a space heater when her office is cold. This is an example of using which type of energy?
What is thermal energy
400
Radiant energy is used when your body digests food and transforms it into kinetic energy.
What is false. The correct answer is chemical energy.
400
A household uses 1,400 W for 310 hours. How many kilowatt-hours will be on their electric bill?
What is 434 kWh
500
Which term states that energy can be transformed from one form into another or transferred from one region to another, but energy cannot be created or destroyed?
What is law of conservation of energy
500
Which type of energy increases when you compress a spring?
What is elastic potential energy
500
On which surface will a toy car travel the least distance?
a. gravel
b. carpet
c. polished wood
d. ice
What is a. gravel
500
Kinetic energy depends on the speed of an object.
What is true
500
A household uses a daily average of 1,100 W each hour for 12 hours. What is the average daily energy use in kilowatt- hours?