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.
b. natural and social science. c. natural and physical 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 b. ecology c. zoology
d. medicine
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3.
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The
main branches of natural science are
a. physics and chemistry.
b. biology, zoology, and ecology. c. medicine and agriculture.
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. b. new inventions. c. applied
science. 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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What
do scientists who do pure science do?
a. They
look for ways to use scientific knowledge to solve problems. b. They develop new
uses for scientific knowledge. c. They do experiments to find out about the
world. d. They build faster and more powerful computers.
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7.
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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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8.
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What
is a scientific law?
a. It is the same as a hypothesis. b. It is a
description of a natural event. c. It is an explanation of a scientific
observation. d. It is the conclusion of a scientific experiment.
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9.
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For a
scientific theory to be valid, it must allow you to
a. perform
experiments. b. obtain new results each time. c. find a new, more
complex explanation. d. make predictions.
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10.
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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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11.
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Scientific theories can be changed or replaced when
a. new
technology is invented. b. new discoveries are made. c. scientists
decide to work on different problems. d. scientists make models of events or
objects.
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12.
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Scientists use computer models to study complicated events and
to
a. perform experiments. b. state theories.
c. change theories and laws. d. make predictions.
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13.
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A
series of logical steps that is followed in order to solve a problem is called
the
a. experimental process. b. scientific theory.
c. scientific method. d. model method.
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14.
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The
first step in the scientific method is usually
a. making
an observation. b. forming a hypothesis. c. collecting
data. d. testing a hypothesis.
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15.
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Scientists test a hypothesis by
a. formulating questions. b. designing models.
c. doing experiments. d. drawing conclusions.
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16.
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What
does it mean to say that "no experiment is a failure"?
a. All
experiments are observations of real events. b. All experiments yield the desired
results. c. All experiments give scientists work to do. d. All
experiments involve manipulating variables.
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17.
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Which
instrument has been used to detect the oldest, most distant objects in the solar
system?
a. light telescope
b. spectrophotometer c. particle accelerator d. radio
telescope
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18.
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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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19.
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The
SI unit for measuring temperature is the
a. degree. b. kelvin. c. mole.
d. ampere.
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20.
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Which
SI prefix means one million?
a. kilo- b. mega-
c. giga- d. milli-
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21.
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Which
SI prefix means one one-hundredth (1/100)?
a. nano- b. micro- c. milli-
d. centi-
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22.
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Maria
is 123 centimeters tall. Her height in meters is
a. 0123
m. b. 0.123 m. c. 1.23 m. d. 12.3 m.
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23.
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A
loaf of bread weighs 1362 g. The weight in kilograms is
a. 1.362
kg. b. 1362 kg. c. 01362 kg. d. 001362
kg.
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24.
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The
force with which gravity pulls on a quantity of matter is referred to as
a. mass. b. length. c. volume.
d. weight.
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25.
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At
which time of day was the temperature approximately 4ºC?
a. 9:00
A.M. b. 10:00 A.M. c. 11:00 A.M. d. 12:00
P.M.
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26.
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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. b. 7:00 A.M. and 10:00 P.M. c. 10:00 A.M. and
7:00 P.M. d. 10:00 A.M. and 10:00 P.M.
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27.
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The
sample contained the same number of pennies for which two years?
a. 1988 and
1992 b. 1988 and 1991 c. 1994 and 1997 d. 1994 and
1998
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28.
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For
which year was the smallest number of pennies found?
a. 1988 b. 1989 c. 1990
d. 1991
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29.
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The
decimal equivalent of 10–2 is
a. 100. b. 10. c. 0.1.
d. 0.01.
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30.
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What
is 78,900,000,000 expressed in scientific notation?
a. 789
× 109 b. 7.89 × 109 c. 7.89 ×
1010 d. 7.89 × 1011
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31.
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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 b. 3,000,000
m/s c. 30,000,000 m/s d. 300,000,000 m/s
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32.
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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?
a. 3 b. 5 c. 6
d. 7
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33.
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You
are asked to find the volume of a cube that is 2.5 cm high, 2.65 cm wide, and 3.456 cm long. How many
significant figures should you show in your answer?
a. 1 b. 2 c. 3
d. 4
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34.
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What
is the volume of a room that is 4 × 102 cm long and 2 × 103 cm
wide?
a. 6 × 103 cm2 b. 8
× 103 cm2 c. 8 × 105 cm2
d. 8 × 107 cm2
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35.
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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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36.
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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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