Energy
Energy is the ability to do...
a. work
b. jobs
c. activities
A. work
This type of energy is also called thermal energy. It comes from the molecules of different temperatures interacting.
a. light
b. heat
c. potential
B. heat
Energy is transferred _______ when you place a metal spoon in a hot cup of tea and the spoon becomes warm.
a. mechanically
b. electrically
c. by heating
C. by heating
A nonrenewable energy source is...
a. something we cannot recreate/replenish
b. something we can produce
c. the sun
A. something we cannot recreate/replenish
This type of energy is called radiant energy. Earth gets a lot of its energy from the Sun.
a. motion
b. chemical
c. light
C. light
Energy is transferred ________ when the Sun's rays warm your face.
a. by heating
b. by radiation
c. electrically
B. by radiation
Open-ended question:
What are some forms of energy that we use in our day-to-day lives?
Example:
- drive our cars
- heat and cool our houses
- watch TV
(answers may vary)
Huge amounts of this energy can be generated by splitting atoms.
a. electrical
b. nuclear
c. gravitational
B. nuclear
Energy is transferred _______ when you push a swing and your energy moves into the swing, causing it to move back and forth.
a. electrically
b. by radiation
c. by motion
C. by motion (kinetic energy)
Law of Conservation of Energy:
This law states that energy is...
a. always created
b. lost
c. never created or destroyed
C. never created or destroyed
Large objects such as the Earth and the Sun create this type of energy.
a. gravitational
b. heat
c. motion
A. gravitational
Energy is transferred _______ when a mobile phone is charging.
a. electrically
b. by radiation
c. by heating
A. electrically
Energy is measured in...
a. feet
b. miles
c. joules
C. joules (J)
This type of energy is energy that is stored. One example of this is a spring that is pressed all the way down.
a. chemical
b. potential
c. nuclear
B. potential
Energy is transferred ______ when a force moves an object through a distance.
a. electrically
b. by heating
c. mechanically
C. mechanically