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 correct
symbol for the SI unit of temperature is ____.
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2.
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The
application of scientific knowledge to help people is ____. a. | pure
science | c. | a
hypothesis | b. | technology | d. | a discovery | | | | |
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3.
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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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4.
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A factor
that does NOT change in an experiment is the ____. a. | hypothesis | c. | control | b. | constant | d. | dependent variable | | | | |
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5.
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A factor
that is manipulated in an experiment to change the dependent variable is the ____. a. | independent
variable | c. | control | b. | constant | d. | dependent variable | | | | |
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6.
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Studying the
effect of one thing on another in order to test a hypothesis is a(n) ____. a. | experiment | c. | exercise | b. | problem | d. | constant | | | | |
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7.
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In a graph
showing temperature change of a material over time, temperature change is the ____. a. | variable with the
smallest range | c. | independent
variable | b. | variable with the largest range | d. | dependent variable | | | | |
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8.
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A rule or
principle that describes what happens in nature is a ____. a. | scientific
law | c. | theory | b. | problem | d. | hypothesis | | | | |
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9.
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How many
meters are there in 1,865 cm? a. | 18.65 | c. | 1.865 | b. | 0.1865 | d. | 186.5 | | | | |
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10.
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A
measurement standard is defined as ____. a. | the interval between two events | b. | the exact quantity
people agree to use for comparison | c. | a system of prefixes | d. | the distance between
two points | | |
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11.
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An idea,
event, or object can be represented by a ____ to help people better understand it. a. | constant | c. | law | b. | model | d. | hypothesis | | | | |
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12.
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The variable
plotted on the horizontal or x-axis is called the ____. a. | independent
variable | c. | variable with the
largest range | b. | variable with the smallest range | d. | dependent variable | | | | |
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13.
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When
designing an experiment, the first step is to ____. a. | state the
problem | c. | list a
procedure | b. | analyze the data | d. | state a hypothesis | | | | |
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14.
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The process
of gathering information through the senses is called ____. a. | hypothesis | c. | observation | b. | analysis | d. | inference | | | | |
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15.
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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. | conclusion | c. | control | b. | hypothesis | d. | observation | | | | |
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16.
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The prefix
kilo- means ____. a. | 1,000 | c. | 100 | b. | 0.01 | d. | 0.001 | | | | |
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17.
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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. | control | d. | hypothesis | | | | |
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18.
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The best
type of graph to use to show how some fixed quantity is broken down into parts is
____. a. | scatter
graph | c. | line
graph | b. | bar graph | d. | circle graph | | | | |
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19.
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One benefit
of the SI system is that it is ____. a. | based on units of 100 | c. | not used to measure temperature | b. | not used in the United
States | d. | based on multiples of
ten | | | | |
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20.
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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. | problem | d. | theory | | | | |
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21.
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The prefix
milli- means ____. a. | 1,000 | c. | 0.01 | b. | 0.001 | d. | 100 | | | | |
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22.
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A factor in
an experiment that changes from the manipulation of the independent variable is the
____. a. | dependent
variable | c. | control | b. | constant | d. | hypothesis | | | | |
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23.
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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. | 320
mL | b. | 32
mL | d. | 3.2
mL | | | | |
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24.
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The
lightbulb is an example of ____. a. | an exercise | c. | technology | b. | a dependent variable | d. | pure science | | | | |
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25.
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The SI unit
that is used to measure time is the ____. a. | second | c. | kilogram | b. | meter | d. | kelvin | | | | |
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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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worldwide
system of measurement
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27.
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SI unit of
mass
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28.
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SI unit of
length
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29.
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derived unit
of volume
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30.
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SI prefix
meaning 1,000
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31.
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SI unit of
time
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32.
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amount of
material in an object
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33.
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SI prefix
meaning 0.001
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34.
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SI prefix
meaning 0.01
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35.
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plotted on
the vertical or y-axis
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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 the water temperature?
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37.
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What part of
the experiment was the food?
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38.
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What part of
the experiment was the caffeine?
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39.
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What part of
the experiment was the heartbeat?
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40.
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What part of
the experiment was population two?
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