Forms of Energy
Energy Transformations
Heat and Heat Transfer
Renewable and nonrenewable resources
Wildcard
100
The ability to do work.
Energy
100
As kinetic energy increases, potential energy _______.
decreases
100
Heat energy moves from ______ substances to ______substances.
Warmer to colder
100
Name the four nonrenewable resources.
Coal, oil, natural gas, nuclear
100
What is a material that slows or stops the flow of heat energy?
An insulator.
200
Which form of energy is stored in the bonds of molecules?
Chemical energy
200
What kind of energy transformation is taking place in the picture below?
Nuclear to electrical
200
Heat transfer due to direct contact is called ____.
Conduction
200
Name the 5 renewable energy sources.
solar, wind, hydropower, geothermal, biomass
200
What is OK and what is it's equivalent on the Celcius scale?
OK is Zero Kelvin, a theoretical value where the motion of atoms completely stops. The Celsius equivalent is -273 degrees Celcius.
300
If a tennis ball is dropped from shoulder height, which choice best describes its energy?
a. KE decreases as it falls
b. PE is greatest just before it is dropped
c. KE is greatest as soon as it is dropped
d. PE increases as it falls to the ground.
B. Most PE just before it is dropped
300
In a wind-up toy such as the chattering teeth, when will the toy have the GREATEST potential energy?
After it is wound
300
Why does the liquid in a thermometer rise when heat is added to it?
Thermal expansion.
300
What is the specific fuel used in nuclear power plants.
Uranium
300
See phase change graph.
Between which two points is the substance in the solid phase?
AB
400
The type of energy that is measured by the internal motion of the molecules.
Thermal Energy
400
See pendulum diagram.
Which position is the greatest kinetic energy?
Position 3
400
Describe the movement of molecules during convection.
As the molecules in a liquid or gas are heated they rise. As the molecules rise, they lose heat energy and then sink, creating a current.
400
Explain the difference between nuclear fusion and nuclear fission.
Nuclear fusion is when two nuclei join together.
Nuclear fission is when the nucleus of an atom is split.
400
See phase change graph.
There are two sections of the graph where phase changes are occurring. Name them.
BC, DE
500
Energy of movement or position
Mechanical Energy
500
Which two places is the Potential Energy considered unchanging?
B, D
500
See diagram.Name the types of heat transfer taking place in A, B, C.
A- convection
B-Conduction
C- Radiation
500
What could be a reason for increased use of electricity in the United States?
a. decreased technology use
b. more renewable energy used
c. reducing the use of electronic devices
d.increased population
increased population
500
What happens to the temperature of H2O during the phase change of freezing?
It stays the same.