Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Fossil fuels currently account for the majority of the world’s energy use
because they are
a. | distributed evenly throughout the world. | b. | nonpolluting. | c. | relatively inexpensive and readily
available. | d. | renewable energy resources. |
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2.
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A drawback of solar energy is that it
a. | cannot be converted directly into electrical energy. | b. | depends on the
climate. | c. | produces water pollution. | d. | is not a renewable
resource. |
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3.
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A benefit of a hydrogen fuel cell is that its byproduct is
a. | carbon dioxide. | c. | water. | b. | oxygen. | d. | uranium. |
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4.
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Which of the following types of transportation is NOT mass
transportation?
a. | bus | c. | streetcar | b. | car | d. | train |
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5.
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Based on your knowledge of energy conservation, which of the following
statements is true?
a. | Manufacturers can increase a light bulb’s energy efficiency by using technology
that increases the amount of electromagnetic energy the bulb converts from a given amount of
electrical energy. | b. | Energy can be conserved by turning off lights
when they are not in use. | c. | both a and b | d. | neither a nor
b |
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Completion Complete each
statement.
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6.
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Energy of an object increases when ____________________ is done on the
object.
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7.
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Energy and work are measured in the SI unit called the
____________________.
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8.
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If the ____________________ of an object doubles, its kinetic energy
doubles.
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9.
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The kinetic energy of an object is proportional to the square of its
____________________.
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10.
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Energy that is stored due to position or shape is called ____________________
energy.
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11.
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When a pole-vaulter flexes the pole, the pole-vaulter increases the pole’s
____________________ potential energy.
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12.
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You can calculate an object’s gravitational potential energy by using the
equation ____________________.
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13.
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Mechanical energy does not include kinetic energy or ____________________
energy.
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14.
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The sum of the kinetic energy and potential energy of an object is called its
____________________ energy.
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15.
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All energy can be considered as kinetic energy, ____________________ energy, or
the energy in fields.
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16.
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Wind turbines convert ____________________ energy into electrical energy.
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17.
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The process of changing energy from one form to another is called energy
____________________.
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18.
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“Energy cannot be created or destroyed” is a statement of the law of
_________________________.
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19.
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When an apple falls from a tree to the ground, the apple’s beginning
kinetic energy and ending gravitational potential energy are both equal to
____________________.
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20.
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In Figure 15-1, the kinetic energy of the pendulum bob decreases between
locations B and ____________________.
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21.
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In the equation E = mc2, c is the speed of
____________________.
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22.
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Energy resources that exist in limited amounts and, once used, cannot be
replaced except over the course of millions of years are called ____________________ energy
resources.
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23.
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Flat collector plates through which water flows are found in
____________________ solar energy systems.
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24.
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Geothermal energy, in addition to being renewable, offers the benefit of being
____________________.
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25.
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Turning off unused lights or appliances is an example of energy
____________________.
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