Multiple Choice
Identify the choice that best completes the statement or
answers the question.
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1.
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Temperature is related mostly to the
_____.
a. | average molecular kinetic energy in a
substance | b. | total kinetic energy in something | c. | average energy in a substance | d. | total energy in
something | e. | average kinetic energy of an
object |
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2.
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Heat is the _____.
a. | average amount of energy per molecule contained in an
object | b. | total amount of energy contained in an
object | c. | energy transferred between objects because of a temperature
difference | d. | amount of energy all the
molecules have | e. | all of the
above |
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3.
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Which has the higher specific heat capacity, water or
sand?
a. | Water | b. | Sand | c. | They both have the same
specific heat capacity. |
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4.
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A bimetallic strip will bend when heated because
_____.
a. | metals bend when heated | b. | each metal expands at different rates | c. | each side of the strip is at a different temperature | d. | metals contract when heated | e. | all of the
above |
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5.
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Heat transfer by conduction in metals occurs when
a. | atoms give off heat in the form of electromagnetic
waves. | b. | large numbers of atoms move from place to
place. | c. | electromagnetic waves travel from one place to another through a
vacuum. | d. | electrons bump into atoms and other
electrons. | e. | none of the
above |
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6.
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Heat transfer by convection occurs when
a. | electromagnetic waves travel from one place to another through a
vacuum. | b. | electrons bump into other electrons. | c. | atoms give off heat in the form of electromagnetic waves. | d. | large numbers of atoms move from place to place. | e. | none of the above |
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7.
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Heat travels from the sun to Earth by
a. | conduction. | b. | radiation. | c. | convection. | d. | insulation. | e. | vacuumization. |
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8.
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The reason light-colored clothes help keep you cool in
warm weather is that clothes of light color
a. | weigh less. | b. | have a lot of spaces in
them. | c. | reflect a lot of energy. | d. | absorb energy, leaving little to pass through. | e. | all of the above |
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9.
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Newton's law of cooling says that the rate of
cooling depends on
a. | the temperature difference between an object and its
surroundings. | b. | the volume of an
object. | c. | the mass of an object. | d. | the specific heat capacity of an object. | e. | all of the above |
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10.
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A piece of metal will feel colder than a piece of wood at
the same temperature. Why?
a. | Metals, in general, have a higher specific heat capacity than
wood. | b. | Metals, in general, are good heat
conductors. | c. | Metals are colder than
wood. | d. | Wood, in general, is a poor insulator. | e. | Metal atoms are moving more slowly, on the average, than wood
atoms. |
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11.
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Evaporation takes place when matter changes from a
a. | solid to a liquid. | b. | solid to a gas. | c. | liquid to a
gas. | d. | gas to a liquid. | e. | gas to a solid. |
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12.
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The lowest possible temperature in nature is
a. | –273 degrees C. | b. | 4 K. | c. | 0 degrees
C. |
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13.
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The first law of thermodynamics is a restatement of the
a. | Carnot cycle. | b. | law of heat addition. | c. | principle of
entropy. | d. | conservation of energy. | e. | none of the above |
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14.
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As a system becomes more disordered, entropy
a. | remains the same. | b. | decreases. | c. | increases. |
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15.
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Systems that are left alone tend to move toward a state
of
a. | more entropy. | b. | less entropy. | c. | no
entropy. |
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16.
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80 joules of heat is added to a system that performs 55
Joules of work. The internal energy change of the system is
a. | 0 J. | b. | 25
J. | c. | 55 J. | d. | 135
J. | e. | none of the above. |
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17.
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The reason an ocean's
temperature doesn't vary much from one season to the next is that _____.
a. | oceans are located in mild regions
of the Earth | b. | oceans are located next to large land areas | c. | water has a high specific heat
capacity | d. | water has a low specific heat
capacity |
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18.
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A container of cold water is
dumped into a larger container of hot water. It is mixed and then left alone for a long time
interval. The water temperature is found to
a. | randomly vary from region to region
in the container. | b. | be uniform throughout the container. | c. | fluctuate at all positions in the
container. | d. | be greater at the bottom of the
container. |
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19.
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When a gas is heated in a
closed container, the internal pressure increases. Which best describes the reason for the increase
in pressure?
a. | The average kinetic energy of the
gas molecules decreases. | b. | The potential energy of the gas increases. | c. | The average kinetic energy of the gas molecules
increases. | d. | The potential energy of the gas
decreases. |
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20.
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Entropy decreases when
a. | wood
burns | b. | water freezes | c. | a snowball melts | d. | an iron nail rusts |
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