Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Energy is transferred as heat between two objects, one with a temperature of
5°C and the other with a temperature of 20°C. If two other objects are to have the same amount of energy transferred
between them, what might their temperatures be?
a. | 10°C and 15°C | c. | 17°C and 32°C | b. | 15°C and
25°C | d. | 80°C and 90°C |
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2.
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During an isovolumetric process, which of the following does not change?
a. | temperature | c. | pressure | b. | volume | d. | internal energy |
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3.
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Energy transferred as heat occurs between two bodies in thermal contact when
they differ in which of the following properties?
a. | mass | c. | density | b. | specific heat | d. | temperature |
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4.
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In the presence of friction, not all of the work done on a system appears as
mechanical energy. What happens to the rest of the energy provided by work?
a. | The remaining energy is stored as mechanical energy within the
system. | b. | The remaining energy is dissipated as sound. | c. | The remaining energy
causes a decrease in the internal energy of the system. | d. | The remaining energy
causes an increase in the internal energy of the system. |
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5.
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Air cools as it escapes from a diver’s compressed air tank. What kind of
process is this?
a. | isovolumetric | c. | adiabatic | b. | isobaric | d. | isothermal |
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6.
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Which thermodynamic process takes place when work is done on or by the system
but no energy is transferred to or from the system as heat?
a. | isovolumetric | c. | adiabatic | b. | isobaric | d. | isothermal |
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7.
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Energy transfer as heat between two objects depends on which of the
following?
a. | The difference in mass of the two objects. | b. | The difference in
volume of the two objects. | c. | The difference in temperature of the two
objects. | d. | The difference in composition of the two objects. |
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8.
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A substance registers a temperature change from 20°C to 40°C. To what incremental temperature
change does this correspond?
a. | 20 K | c. | 36 K | b. | 40 K | d. | 313 K |
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9.
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Which of the following is not a widely used temperature scale?
a. | Kelvin | c. | Celsius | b. | Fahrenheit | d. | Joule |
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10.
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When an ideal gas does positive work on its surroundings, which of the
gas’s quantities increases?
a. | temperature | c. | pressure | b. | volume | d. | internal energy |
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11.
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If energy is transferred from a table to a block of ice moving across the table,
which of the following statements is true?
a. | The table and the ice are at thermal equilibrium. | b. | The ice is cooler
than the table. | c. | The ice is no longer 0°C. | d. | Energy is being
transferred from the ice to the table. |
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12.
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In an elastic collision between two ball bearings, kinetic energy is conserved.
If there is no change in potential energy, which of the following is true?
a. | DU > 0 | b. | DU = 0 | c. | DU <
0 | d. | DU cannot be determined for this
event. |
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13.
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What thermodynamic process for an ideal gas system has an unchanging internal
energy and a heat intake that corresponds to the value of the work done by the system?
a. | isovolumetric | c. | adiabatic | b. | isobaric | d. | isothermal |
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14.
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Why does sandpaper get hot when it is rubbed against rusty metal?
a. | Energy is transferred from the sandpaper into the metal. | b. | Energy is
transferred from the metal to the sandpaper. | c. | Friction between the sandpaper and metal
increases the temperature of both. | d. | Energy is transferred from a hand to the
sandpaper. |
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15.
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In an isovolumetric process for an ideal gas, the system’s change in the
energy as heat is equivalent to a change in which of the following?
a. | temperature | c. | pressure | b. | volume | d. | internal energy |
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16.
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Which thermodynamic process takes place at a constant temperature so that the
internal energy of a system remains unchanged?
a. | isovolumetric | c. | adiabatic | b. | isobaric | d. | isothermal |
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17.
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What happens to the internal energy of an ideal gas when it is heated from
0°C to 4°C?
a. | It increases. | c. | It remains constant. | b. | It decreases. | d. | It is impossible to
determine. |
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18.
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Which of the following is a set of particles or interacting components to which
energy is added or from which energy is removed?
a. | an ideal gas | c. | a system | b. | an engine | d. | an environment |
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19.
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A nail is driven into a board with an initial kinetic energy of 150 J. If the
potential energy before and after the event is the same, what is the change in the internal energy of
the board and nail?
a. | 150 J | c. | 0 J | b. | 75 J | d. | -150
J |
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20.
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A substance registers a temperature change from 20°C to 40°C. To what incremental temperature
change does this correspond?
a. | 20°F | c. | 36°F | b. | 40°F | d. | 313°F |
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