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Study Guide Answers

1.     Energy is the ability to cause _____________________________.
     change
2.     Work is equal to ________________________ times _____________________________.
     force/ distance
3.     The amount of work done depends upon what factors?
     amount of force exerted/ distance over which the force is applied
4.     Physical work is defined as the transfer of energy through ___________________________.
     motion
5.     ________________________________ energy is the energy of motion.
     Kinetic
6.     ________________________________energy is stored energy.
     Potential
7.     Potential energy has the power to cause _______________________________.
     change
8.     The total kinetic and potential energy of a system equals the ______________________ energy of that system.
     mechanical
9.     As temperature rises, molecules move __________________________. ( more rapidly/ more slowly )
     more rapidly
10.     Radiant energy is contained in __________________ and in ___________________________.
     light/ radio waves
11.     What is thermal energy?
     the total energy of the particles in a material
12.     What is the "Law of Conservation of Energy"?
     Energy can be converted from one form to another, but energy cannot be created or destroyed.
13.     During the process of photosynthesis, plants convert radiant energy into ___________________ energy.
     chemical
14.     The amount of energy in the universe is always ____________________________________.
     the same
15.     A "newton" measures ________________________________.
     weight
16.     A(n) __________________________________________is the primary unit of measuring energy.
     joule
17.     What is specific heat?
     the amount of energy it takes to raise the temperature of one gram Of a material one Celsius degree
18.     Water has a(n) _______________________________ specific heat.
     high
19.     It takes [ more/ less ] radiant energy to heat pool water than it does to heat the surrounding air.
     more
20.     Digestion breaks food down , to give you _______________________________.
     energy
21.     Food is our body's _______________________________.
     fuel
22.     What is heat?
     the thermal energy that flows from something with a higher temperature to something with a lower temperature
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.