Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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Pollution is
the introduction of non-native, harmful substances into an environment. Oil is considered a pollutant
when it enters oceans. A pollutant is a substance that causes damage to organisms by interfering with
life processes. The graph shows the percentage of different sources of oil that enter the oceans each
year.
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1.
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What type of
data are shown in the graph? a. | Qualitative | c. | Independent | b. | Quantitative | d. | Descriptive | | | | |
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2.
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Which of the
following is an example of a product? a. | A meal | c. | An airplane flight | b. | A
bicycle | d. | A karate
class | | | | |
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3.
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Which
of the following is directly related to the amplitude of a wave? a. | the energy of
the wave | b. | the speed of the wave | c. | the wavelength
of the wave | d. | the medium in which the wave is
produced | | |
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4.
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Compare diagrams A and B. How does the wavelength of the wave in B compare to the
wavelength of the wave in A? a. | The wavelength of the wave in B is one-half the wavelength of
the wave in A. | b. | The wavelength of the wave in B is twice the wavelength of the
wave in A. | c. | The wavelength of the wave in B is four times the wavelength of
the wave in A. | d. | It is impossible to tell how the wavelengths
compare. | | |
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5.
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Which
of these is NOT a way to conserve fossil fuels? a. | Obtain energy from other sources such as wind, water, Earth,
and the Sun. | b. | Make more fuel-efficient vehicles such as hybrid gas-electric
cars. | c. | Manufacture larger trucks and SUVs | d. | Don’t waste
energy in your daily activities. | | |
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6.
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What
statement correctly describes the current in the wires attached to the lightbulb in the circuit
shown? a. | current does not
flow in the circuit. | b. | The current direction is counterclockwise in the
circuit. | c. | The current direction alternates 60 times per
second. | d. | The current direction is clockwise in the
circuit. | | |
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7.
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What
is the mass of the object being measured in the figure?
a. | 47.52 g | c. | 407.52 g | b. | 147.52
g | d. | 527.40
g | | | | |
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8.
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A
student measured the length of a piece of string that was 64.34 cm long. Her measurements were 67.02
cm, 67.07 cm, 67.05 cm, and 67.04 cm. Which of the following statements is true? a. | The measurements
were accurate but not precise. | b. | The measurements were precise but not
accurate. | c. | The measurements were both precise and
accurate. | d. | The measurements were neither accurate nor
precise. | | |
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A school
implemented a peer-study group with one class of students to determine how it affected their science
grade. The school had four grading periods. The average science grades of the students who
participated in the study program were recorded for each grading period. The table below shows the
results.
Average Grade of
Students in Study Program | Grading
Period | Average Science
Grade | First | 81 | Second | 85 | Third | 86 | Fourth | 89 | | |
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9.
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Which graph
correctly illustrates the results shown in the table?
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10.
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Which
statement best describes how the school might better analyze the impact of the study
program? a. | Compare the results to
the grades of students who did not participate in the study program. | b. | Compare the history
grades of students who participated in the program to their science grades. | c. | Examine the topics
studied in the science class. | d. | Interview students who did not participate in the
program. | | |
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11.
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Which title
would best describe the table?
Properties | Earth | Venus | Diameter
(km) | 12,756 | 12,104 | Average Density
(g/cm3) | 5.5 | 5.3 | Percentage of sunlight
reflected | 39 | 76 | Daytime surface
temperature (degrees) | 300 | 750 | Number of
satellites | 1 | 0 | | | |
a. | Diameter of Venus and Earth | c. | Solar System Data | b. | Characteristics of
Venus and Earth | d. | Orbital
Data | | | | |
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Density
Changes with Altitude | Altitude (km) | Density
(g/L) | Altitude
(km) | Density
(g/L) | 0 | 1.23 | 30 | 0.018 | 2 | 1.01 | 40 | 0.004 | 4 | 0.82 | 50 | 0.001 | 6 | 0.66 | 60 | 0.0003 | 8 | 0.53 | 70 | 0.00009 | 10 | 0.41 | 80 | 0.00002 | 15 | 0.19 | 90 | 0.000003 | 20 | 0.09 | 100 | 0.0000005 | | | | |
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12.
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Based
on the table above, which of the following statements is true? a. | As altitude
increases, air pressure decreases. | b. | As density decreases, air pressure
increases. | c. | Density and air pressure are unrelated
concepts. | d. | Lower pressure indicates lower
altitude. | | |
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13.
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From
its location on the periodic table, which of the following elements would most likely share two pairs
of electrons with other atoms?
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14.
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On
the periodic table, metals are on the left side and middle, and nonmetals are on the right side.
Hydrogen is an exception because it is on the left side but is a nonmetal. Metalloids are found
diagonally starting from top left to bottom right of the right side of the periodic table. According
to the art above, most of the elements in the human body can be classified as what
type? a. | compounds | c. | metals | b. | metalloids | d. | nonmetals | | | | |
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15.
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Using
information in the art as reference, how much calcium is found in a person who has a mass of 60
kg? a. | 1.2
kg | c. | 12
kg | b. | 1.8
kg | d. | 60
kg | | | | |
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16.
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The
Sun is a yellow main sequence star. Which element accounts for most of the mass of the
Sun? a. | carbon
(C) | c. | hydrogen
(H) | b. | helium
(He) | d. | neon
(Ne) | | | | |
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Year | Distance (cm) | 1 | 1.8 | 2 | 2.6 | 3 | 3.5 | 4 | 2.1 | 5 | 2.3 | 6 | 2.1 | 7 | 2.4 | 8 | 2.8 | 9 | 2.6 | 10 | 2.5 | 11 | 2.6 | | |
The theory of
seafloor spreading was first proposed in the 1960s as an explanation for the formation of mountainous
ridges discovered on the ocean floor. It was suggested that hot material in Earth’s mantle is
forced upward to the surface at the ridge, then flows sideways carrying the seafloor away from the
ridge in both directions. Scientists discovered that age and magnetic data of rocks from the ocean
floor strongly supported this theory. The combined theories of continental drift and seafloor
spreading produced the theory of plate tectonics, which describes how Earth’s crust and upper
mantle is broken into sections, called plates, that move around on Earth’s mantle. The table
above provides sample data for spreading movement at a divergent plate boundary.
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17.
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Using
Newton’s second law of motion and information in the table above, determine the year during
which the greatest net force was acting on the plate.
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18.
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The
table shows relative solubilities of different gases in water. Which of the following statements does
NOT help explain why ammonia is much more soluble in water than the other two gases in the
list?
Solubilities of Some Gases in Water at Various
Temperatures | Substance | Formula | Solubility
(g/100 g water at standard pressure) | 0°C | 20°C | 60°C | Ammonia | NH3 | 1130 | 680 | 200 | Carbon
dioxide | CO2 | 1.713 | 0.878 | 0.359 | Oxygen
| O2 | 0.048 | 0.031 | 0.019 | | | | | |
a. | Water and ammonia are both polar. | b. | Carbon dioxide
is not polar but water is. | c. | Oxygen is not polar but water is. | d. | If temperature
is the factor being considered, nature of the solute and solvent should not be
considered. | | |
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19.
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A
scientist conducts an experiment and concludes that the water in a pond is acidic. What should the
next step in the experiment be? a. | Repeat the experiment | b. | Conclude that
all ponds in the area are acidic | c. | Start taking measures to reduce the acidity of the
pond | d. | Disregard the
results and run the experiment again | | |
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20.
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When
a roller coaster goes into a smooth loop, which is NOT true? a. | Speed generally
remains constant. | b. | The momentum of the cars increases. | c. | Velocity changes
because direction changes. | d. | Acceleration changes because direction
changes. | | |
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21.
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If
you lift weights faster than normal, you have increased what? a. | Force | c. | Distance | b. | Power | d. | Work | | | | |
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22.
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How
far would the rope need to be pulled in the direction of arrow 2 in order to lift a 10 N weight 3.5
m? a. | 7.0
m | c. | 35
m | b. | 3.5
m | d. | 13.5
m | | | | |
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23.
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An
882-N sofa must be placed in a moving truck 1.5 m off the ground. A worker uses a force of 410 N to
push the sofa up a 4.5-m ramp onto the truck. What is the efficiency of the inclined
plane?
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24.
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In a
pot of boiling water, the water transfers energy by conduction. What other process of thermal energy
transfer occurs? a. | radiation | c. | convection | b. | collisional | d. | None. Conduction is the only process. | | | | |
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25.
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In
what direction does thermal energy flow naturally? a. | from warm to
warm | c. | from cold to
cold | b. | from warm to
cold | d. | from cold to
warm | | | | |
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