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 best
type of graph to use to show how some fixed quantity is broken down into parts is
____. a. | bar
graph | c. | scatter
graph | b. | circle graph | d. | line graph | | | | |
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2.
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A factor
that does NOT change in an experiment is the ____. a. | control | c. | hypothesis | b. | dependent variable | d. | constant | | | | |
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3.
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One benefit
of the SI system is that it is ____. a. | not used to measure temperature | c. | based on units of 100 | b. | not used in the United
States | d. | based on multiples of
ten | | | | |
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4.
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A rule or
principle that describes what happens in nature is a ____. a. | hypothesis | c. | problem | b. | theory | d. | scientific law | | | | |
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5.
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In a graph
showing temperature change of a material over time, temperature change is the ____. a. | variable with the
largest range | c. | independent
variable | b. | variable with the smallest range | d. | dependent variable | | | | |
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6.
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The prefix
kilo- means ____. a. | 100 | c. | 1,000 | b. | 0.01 | d. | 0.001 | | | | |
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7.
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A standard
for comparison that helps to ensure that the experimental result is caused by the condition being
tested is the ____. a. | constant | c. | dependent variable | b. | hypothesis | d. | control | | | | |
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8.
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An idea,
event, or object can be represented by a ____ to help people better understand it. a. | law | c. | hypothesis | b. | model | d. | constant | | | | |
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9.
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A factor in
an experiment that changes from the manipulation of the independent variable is the
____. a. | control | c. | constant | b. | hypothesis | d. | dependent variable | | | | |
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10.
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The SI unit
that is used to measure time is the ____. a. | second | c. | kilogram | b. | kelvin | d. | meter | | | | |
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11.
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A factor
that is manipulated in an experiment to change the dependent variable is the ____. a. | independent
variable | c. | dependent
variable | b. | constant | d. | control | | | | |
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12.
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When
designing an experiment, the first step is to ____. a. | analyze the
data | c. | state a
hypothesis | b. | list a procedure | d. | state the problem | | | | |
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13.
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The process
of gathering information through the senses is called ____. a. | inference | c. | analysis | b. | observation | d. | hypothesis | | | | |
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14.
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A beaker
contains 0.32 L of water. What is the volume of this water in milliliters? a. | 0.32
mL | c. | 3.2
mL | b. | 32
mL | d. | 320
mL | | | | |
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15.
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Studying the
effect of one thing on another in order to test a hypothesis is a(n) ____. a. | constant | c. | experiment | b. | problem | d. | exercise | | | | |
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16.
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A box is 25
cm long, 6 cm wide, and 4 cm high. How many cubic centimeters of water can it hold?
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17.
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The correct
symbol for the SI unit of temperature is ____.
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18.
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An
explanation of an event that is based on repeated observations and experiments is a
____. a. | hypothesis | c. | scientific
law | b. | theory | d. | problem | | | | |
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19.
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The
lightbulb is an example of ____. a. | pure science | c. | technology | b. | an exercise | d. | a dependent variable | | | | |
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20.
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The
application of scientific knowledge to help people is ____. a. | a
discovery | c. | a
hypothesis | b. | pure science | d. | technology | | | | |
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21.
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The prefix
milli- means ____. a. | 0.001 | c. | 100 | b. | 1,000 | d. | 0.01 | | | | |
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22.
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How many
meters are there in 1,865 cm? a. | 1.865 | c. | 0.1865 | b. | 18.65 | d. | 186.5 | | | | |
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23.
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The variable
plotted on the horizontal or x-axis is called the ____. a. | variable with the
largest range | c. | dependent
variable | b. | variable with the smallest range | d. | independent variable | | | | |
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24.
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In an
experiment to determine whether the popping of popcorn is affected by the temperature at which it is
stored, counting the popped kernels is an example of a(n) ____. a. | observation | c. | control | b. | conclusion | d. | hypothesis | | | | |
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25.
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A
measurement standard is defined as ____. a. | the exact quantity people agree to use for
comparison | b. | the interval between two events | c. | a system of
prefixes | d. | the distance between two points | | |
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Matching
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Match
each item with the correct statement below. a. | milli- | g. | kilogram | b. | kilo- | h. | cubic centimeter | c. | centi- | i. | meter | d. | mass | j. | dependent variable | e. | kelvin | k. | SI | f. | second | | | | |
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26.
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SI prefix
meaning 0.001
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27.
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SI prefix
meaning 0.01
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28.
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derived unit
of volume
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29.
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SI unit of
length
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30.
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SI unit of
time
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31.
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amount of
material in an object
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32.
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SI unit of
mass
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33.
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worldwide
system of measurement
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34.
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plotted on
the vertical or y-axis
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35.
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SI prefix
meaning 1,000
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Read the paragraph and then match each item with the correct statement
below.
An experiment was designed to investigate the effect
of caffeine on the heartbeat of water fleas. Two populations of water fleas were cultured. Both
populations had water with the same mineral content, were supplied with identical amounts of bacteria
as food, received the same amount of light, and had their temperature maintained at 20ºC. Every
two hours, water fleas from both populations were selected and their heartbeats were monitored. The
fleas of population one had caffeine administered five minutes before their heartbeat was checked.
The fleas of population two were given nothing. a. | independent variable | c. | constant | b. | dependent variable | d. | control | | | | |
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36.
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What part of
the experiment was population two?
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37.
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What part of
the experiment was the heartbeat?
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38.
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What part of
the experiment was the food?
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39.
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What part of
the experiment was the water temperature?
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40.
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What part of
the experiment was the caffeine?
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