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Ch 7
Test Description: MB Water
Instructions: Answer all questions to get your test result.
1) Heat is
A
a measurement of average molecular motion speed
B
the total energy in the random motion of molecules and atoms
2) Temperature is
A
a measurement of average molecular motion speed
B
the total energy in the random motion of molecules and atoms
3) The ___________ system is most often used in science to measure temperature
A
Farenheit
B
Celsius
4) Heat Capacity is
A
the temperature of something
B
The amount of heat required to raise the temperature of a substance by a given amount
5) The heat capacity of water
A
influences the world\'s climate and weather
B
has little real effect
6) Water becomes __________ when it freezes. This is __________ most substances
A
less dense, different from
B
less dense, the same as
C
more dense, the same as
D
more dense, different from
7) The heat that is lost without a change in temperature when water freezes is called
A
latent heat of fusion
B
latent heat of vaporization
C
heat capacity
8) The heat required to vaporize a substance is called
A
latent heat of fusion
B
latent heat of vaporization
C
heat capaciaty
9) The tendency for water to resist temperatue chang is called__________. It is one of the factors in establishing __________
A
thermal intertia, thermal equilibrium
B
thermal intertia, global warming
C
thermal equilibrium, thermal inertia
D
thermal equilibrium, global warming
10) Low temperature and high salinity make sea water _________ dense
A
more
B
less
*select an answer for all questions
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