Ch 7: Question Preview (ID: 2887)


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Heat is
a) a measurement of average molecular motion speed
b)
c)
d) the total energy in the random motion of molecules and atoms

Temperature is
a) a measurement of average molecular motion speed
b)
c)
d) the total energy in the random motion of molecules and atoms

The ___________ system is most often used in science to measure temperature
a) Celsius
b)
c)
d) Farenheit

Heat Capacity is
a) The amount of heat required to raise the temperature of a substance by a given amount
b)
c)
d) the temperature of something

The heat capacity of water
a) has little real effect
b)
c)
d) influences the world\'s climate and weather

Water becomes __________ when it freezes. This is __________ most substances
a) less dense, different from
b) more dense, the same as
c) less dense, the same as
d) more dense, different from

The heat that is lost without a change in temperature when water freezes is called
a) latent heat of vaporization
b)
c) latent heat of fusion
d) heat capacity

The heat required to vaporize a substance is called
a) latent heat of vaporization
b)
c) latent heat of fusion
d) heat capaciaty

The tendency for water to resist temperatue chang is called__________. It is one of the factors in establishing __________
a) thermal equilibrium, global warming
b) thermal intertia, thermal equilibrium
c) thermal equilibrium, thermal inertia
d) thermal intertia, global warming

Low temperature and high salinity make sea water _________ dense
a) less
b) more
c)
d)

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