Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
two main branches of science are a. | physics and chemistry. | c. | natural and physical science. | b. | natural and
social science. | d. | biological and
earth science. | | | | |
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2.
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Which
of the following is not a branch of biology? a. | geology | c. | zoology | b. | ecology | d. | medicine | | | | |
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3.
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The
main branches of natural science are a. | physics and chemistry. | c. | medicine and agriculture. | b. | biology,
zoology, and ecology. | d. | life, physical,
and earth science. | | | | |
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4.
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Technology can best be defined as a. | science that uses computers. | c. | applied science. | b. | new
inventions. | d. | the use of
lenses and microscopes. | | | | |
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5.
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Pure
science is best defined as the a. | continuing search for new knowledge. | b. | use of science
to solve human problems. | c. | study of the makeup of living things. | d. | application of
scientific knowledge. | | |
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6.
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A
scientific theory is an explanation that a. | has been published in a journal or
book. | b. | predicts what will happen. | c. | has been tested
by many observations. | d. | a scientist has tested with an
experiment. | | |
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7.
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For a
scientific theory to be valid, it must allow you to a. | perform
experiments. | c. | find a new, more
complex explanation. | b. | obtain new results each time. | d. | make predictions. | | | | |
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8.
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A
scientific model is a a. | representation of a real event or
object. | b. | small building used to conduct
experiments. | c. | mathematical statement of a theory. | d. | new theory that
takes the place of an incorrect one. | | |
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9.
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Scientists use computer models to study complicated events and to a. | perform
experiments. | c. | change theories
and laws. | b. | state theories. | d. | make predictions. | | | | |
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10.
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A
series of logical steps that is followed in order to solve a problem is called the a. | experimental
process. | c. | scientific
method. | b. | scientific theory. | d. | model method. | | | | |
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11.
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The
first step in the scientific method is usually a. | making an observation. | c. | collecting data. | b. | forming a
hypothesis. | d. | testing a
hypothesis. | | | | |
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12.
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Scientists test a hypothesis by a. | formulating questions. | c. | doing experiments. | b. | designing
models. | d. | drawing
conclusions. | | | | |
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13.
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Which
question cannot be answered by an experiment? a. | Does penicillin kill Salmonella
bacteria? | b. | Is rabies caused by a virus? | c. | Did a comet
impact kill the dinosaurs? | d. | Can radiation cause cancer? | | |
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14.
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The
SI unit for measuring temperature is the a. | degree. | c. | mole. | b. | kelvin. | d. | ampere. | | | | |
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15.
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Which
SI prefix means one million? a. | kilo- | c. | giga- | b. | mega- | d. | milli- | | | | |
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16.
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Which
SI prefix means one one-hundredth (1/100)? a. | nano- | c. | milli- | b. | micro- | d. | centi- | | | | |
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17.
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Maria
is 123 centimeters tall. Her height in meters is a. | 0123 m. | c. | 1.23 m. | b. | 0.123
m. | d. | 12.3
m. | | | | |
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18.
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At
which time of day was the temperature approximately 4ºC? a. | 9:00
A.M. | c. | 11:00
A.M. | b. | 10:00
A.M. | d. | 12:00
P.M. | | | | |
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19.
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At
which two times of day was the temperature the same? a. | 7:00 A.M. and
7:00 P.M. | c. | 10:00 A.M. and
7:00 P.M. | b. | 7:00 A.M. and 10:00 P.M. | d. | 10:00 A.M. and 10:00 P.M. | | | | |
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20.
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The
sample contained the same number of pennies for which two years? a. | 1988 and
1992 | c. | 1994 and
1997 | b. | 1988 and
1991 | d. | 1994 and
1998 | | | | |
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21.
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What
is 78,900,000,000 expressed in scientific notation? a. | 789 ×
109 | c. | 7.89 ×
1010 | b. | 7.89 × 109 | d. | 7.89 × 1011 | | | | |
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22.
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The
speed of light is approximately 3 × 108 m/s. How would this be written in
conventional notation? a. | 300,000 m/s | c. | 30,000,000 m/s | b. | 3,000,000
m/s | d. | 300,000,000
m/s | | | | |
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23.
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You
are asked to find the area of a room that is 4.56 m long and 5.668 m wide. How many significant
figures should you show in your answer?
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24.
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A
precise measurement is one that a. | contains the correct number of significant
figures. | b. | contains at least three significant
figures. | c. | is close to the true value. | d. | is as exact as
possible. | | |
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25.
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A
measurement that is accurate is one that a. | is as exact as possible. | b. | is close to the
true value. | c. | contains at least four significant
figures. | d. | contains five decimal places. | | |
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