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1.
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When an object’s distance from another object is changing,
A. | it is in motion. | B. | it is speeding. | C. | it has a high
velocity. | D. | it is accelerating. |
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2.
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A place or object used for comparison to determine if something is in motion is
called
A. | a position. | B. | a reference point. | C. | a
constant. | D. | velocity. |
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3.
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The basic SI unit of length is the
A. | meter. | B. | foot. | C. | inch. | D. | mile. |
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4.
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If you know the distance an object has traveled in a certain amount of time, you
can determine
A. | the size of the object. | B. | the speed of the object. | C. | the location of the
object. | D. | the velocity of the object. |
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5.
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Speed equals distance divided by
A. | time. | B. | velocity. | C. | size. | D. | motion. |
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6.
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If the speed of an object does NOT change, the object is traveling at
a(n)
A. | constant speed. | B. | average speed. | C. | increasing
speed. | D. | decreasing speed. |
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7.
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If a bicyclist travels 30 kilometers in two hours, her average speed is
A. | 30 km/h. | B. | 60 km/h. | C. | 15
km/h. | D. | 2 km/h. |
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8.
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If an object moves in the same direction and at a constant speed for 4 hours,
which of the following is true?
A. | The object’s speed changed during the 4 hours. | B. | The object’s
velocity did not change. | C. | The object accelerated during the 4
hours. | D. | The object decelerated during the 4 hours. |
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9.
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If you know a car traveled 300 kilometers in 3 hours, you can find its
A. | acceleration. | B. | direction. | C. | average
speed. | D. | velocity. |
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10.
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When you know both the speed and the direction of an object’s motion, you
know the
A. | average speed of the object. | B. | acceleration of the object. | C. | distance the object
has traveled. | D. | velocity of the object. |
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11.
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In graphing motion, the steepness of the slope depends on
A. | how quickly or slowly the object is moving. | B. | how far the object
has moved. | C. | when the object began moving. | D. | the direction the object is
moving. |
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12.
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On a graph showing distance versus time, a horizontal line represents an object
that is
A. | moving at a constant speed. | B. | increasing its speed. | C. | decreasing its
speed. | D. | not moving at all. |
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13.
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The rate at which velocity changes is called
A. | speed. | B. | direction. | C. | acceleration. | D. | motion. |
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14.
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Changing direction is an example of a kind of
A. | acceleration. | B. | speed. | C. | velocity. | D. | constant rate. |
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15.
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Which of these is an example of deceleration?
A. | a bird taking off for flight | B. | a baseball released by a
pitcher | C. | a car approaching a red light | D. | an airplane following a straight flight
path |
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16.
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The moon accelerates because it is
A. | in a vacuum in space. | B. | continuously changing
direction. | C. | a very large sphere. | D. | constantly increasing its speed of
orbit. |
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17.
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To determine the acceleration rate of an object, you must calculate the change
in velocity during each unit of
A. | speed. | B. | time. | C. | motion. | D. | deceleration. |
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18.
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If velocity is measured in kilometers per hour and time is measured in seconds,
the unit of acceleration is
A. | hours. | B. | kilometers per hour. | C. | kilometers per hour
per second. | D. | kilometers. |
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19.
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In an acceleration graph showing speed versus time, a straight line, running
from lower left to upper right, shows the acceleration is
A. | decreasing. | B. | increasing. | C. | changing. | D. | constant. |
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20.
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Jonas is testing the acceleration performance of his remote controlled car.
Starting from rest he accelerates his car to a maximum speed of 1.7 meters per second (m/s) in
0.9 seconds (sec). What was the average acceleration of Jonas’s car?
A. | 1.89 meters per second squared | B. | 2.60 meters per second
squared | C. | 1.53 meters per second squared | D. | 0.53 meters per second
squared |
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21.
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A train that travels 100 kilometers in 4 hours is traveling at what average
speed?
A. | 50 km/h | B. | 100 km/h | C. | 2
km/h | D. | 25 km/h |
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22.
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You can show the motion of an object on a line graph in which you plot distance
against
A. | velocity. | B. | time. | C. | speed. | D. | direction. |
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23.
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Changes in which two factors determine an object’s acceleration?
A. | instantaneous speed and average speed | B. | position and mass | C. | mass and
velocity | D. | velocity and direction |
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24.
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What does a negative acceleration mean?
A. | The object is not moving. | B. | The object is slowing down. | C. | The object is
speeding up. | D. | The object is moving at a constant speed. |
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25.
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Which of these correctly describes the acceleration of an object?
A. | Acceleration is the total distance traveled divided by the total time of
travel. | B. | Acceleration is the rate of change of velocity of an object. | C. | Acceleration is the
rate at which an object moves. | D. | Acceleration is the speed and direction an
object travels. |
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26.
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Which statement about acceleration is TRUE?
A. | Acceleration can have a positive or negative value. | B. | If the acceleration
is in the same direction as the velocity, acceleration is negative. | C. | A change in
direction of motion does not affect an object's acceleration. | D. | Acceleration always
has a positive value. |
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The table below shows the time, in minutes, required for students in Mr.
Rice’s physical education class to run one mile.
Mile Run Times
for
Mr. Rice’s Students |
Student |
Distance (miles) |
Time (minutes) |
| Gloria |
1 |
12.50 |
| Kiri |
1 |
10.15 |
| Minato |
1 |
9.75 |
| Pati |
1 |
9.50 |
| Elizabeth |
1 |
11.75 |
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27.
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Refer to the table above. Why can’t velocity be determined from this
data?
A. | Velocity is not dependent on the direction in which the students
ran. | B. | The students are accelerating as they run. | C. | Velocity describes
both speed and direction of an object. | D. | The students are not accelerating as they
run. |
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28.
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Refer to the table above. Which runner has the slowest average speed?
A. | Minato | B. | Kiri | C. | Gloria | D. | Elizabeth |
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29.
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Refer to the table above. Which runner has the fastest average speed?
A. | Gloria | B. | Minato | C. | Kiri | D. | Pati |
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30.
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Which unit could not be used to describe the acceleration of an
object?
A. | meter per second | B. | kilometer per second
squared | C. | mile per hour squared | D. | meter per second
squared |
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31.
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Tectonic plates move so slowly that their motion cannot be observed directly.
Plate movement on Earth ranges from about 2 centimeters per year to about 17 centimeters
per year. If a tectonic plate moves 1150 centimeters in 100 years, what is its average speed, in
centimeters per year? Round your answer to the nearest tenth (NUMBER ONLY - Computer doesn't recognize units) .
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32.
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What is an ion?
A. | an atom that doesn’t have neutrons | B. | an atom or group of
atoms that has become electrically charged | C. | the opposite of an electron | D. | an atom that
doesn’t have protons |
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33.
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A reaction that absorbs energy in the form of heat is described as
A. | endothermic. | B. | exothermic. | C. | combustion. | D. | unbalanced. |
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34.
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A substance that tastes bitter, feels slippery, and turns red litmus paper blue
is a(n)
A. | acid. | B. | base. | C. | indicator. | D. | salt. |
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35.
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Which form of pure carbon is so hard that it can be used in cutting
tools?
A. | diamond | B. | graphite | C. | hydrocarbon | D. | fullerene |
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36.
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Which form of pure carbon is formed of layers that slide past each other?
A. | diamond | B. | graphite | C. | fullerene | D. | isomer |
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37.
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How long will your trip take (in hours) if you travel 350 km at an average speed
of 80 kilometers per hour? (Round to the nearest tenth)
A. | 3.9 hours | B. | 0.23 hours | C. | 28000
hours | D. | 4.4 hours |
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38.
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A race car maintains a constant speed of 195
kilometers per hour as it completes one lap around a circular track. Which statement about this
car’s motion is true?
A. | The race car is not accelerating because it maintains a
constant velocity. |
B. | The race car is
accelerating because its direction is constantly changing. |
C. | The race car is not accelerating because its velocity is not
changing. |
D. | The race car is accelerating because its speed is not
decreasing. |
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39.
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What is shown by this graph?
A. | Acceleration | B. | Speed | C. | Velocity |
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40.
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Which of these two joggers is traveling at a faster constant speed?
A. | Kathy | B. | Rachel | C. | They are running at
the same speed. |
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41.
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What is Kathy’s speed?
A. | 200 m/min | B. | 150 m/min | C. | 600
m/min/sec | D. | 150 m/min/min |
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42.
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Both runners above started running at the same time.
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43.
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How would the graph above be different if it were a graph of acceleration? (Describe)
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44.
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How many minutes after starting her run did Rachel stop running?
A. | 7 minutes | B. | 5 minutes | C. | 2
minutes | D. | 10 minutes |
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45.
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According to data shown on the graph, for how many minutes did Rachel
stop?
A. | 5 minutes | B. | 7 minutes | C. | 3
minutes | D. | 10 minutes |
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