Completion
Complete each
statement.
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1.
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When an object covers equal distances in equal amounts of time, it is moving at
a(n) ____________________ speed.
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2.
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Because the speed of an object can change from one instant to the next, dividing
the total distance covered by the time of travel gives _________________________.
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3.
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When an object is seen moving in relation to a stationary object, the stationary
object is called ______________________________.
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4.
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The distance-time graph for a faster moving object has a(n) ____________________
slope than the graph for a slower moving object.
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5.
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You observe that a car is in motion when it changes ____________________
relative to a reference point.
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6.
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Force is a quantity made up of magnitude and ____________________.
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7.
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If a cyclist moves at a constant speed of 5.1 m/s, he travels a distance of
____________________ every second.
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8.
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On a distance-time graph, time is usually the ____________________
variable.
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9.
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The friction between the bristles of your toothbrush and the surfaces of your
teeth is an example of ____________________ friction.
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10.
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Displacement is the change in ____________________ of an object.
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11.
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The measurement 82 km/h southeast is a measurement of
____________________.
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12.
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If you are riding on a northbound train and you walk southbound down the aisle,
your ____________________ velocity is less than the velocity of the train.
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13.
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A person on a skateboard accelerates at a rate of 1.5 m/s2. This rate
means that she is moving 1.5 meters ____________________.
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14.
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The rotating propeller of an airplane is an example of ____________________
acceleration.
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15.
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The symbol Dv represents
___________________________________.
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16.
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When the pilot of an airliner raises its flaps to slow down, the plane’s
acceleration is ____________________ the direction of motion.
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17.
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A bird feeder hanging from the branch of a tree does not move up or down because
there is a tension force pulling up on the feeder that ____________________ the force of gravity
pulling the feeder down.
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18.
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If you push a desk westward and your friend pushes northward on the desk with
equal force, the desk will move in a(n) ____________________ direction.
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19.
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Because the speed of an object can change from one instant to the next, dividing
the total distance covered by the time of travel gives ______________________________.
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20.
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Velocity describes both speed and ____________________.
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21.
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Acceleration can be determined from a velocity vs. time graph by calculating the
line’s ____________________.
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22.
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One way to reduce friction in a car engine is to add a(n)
____________________.
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23.
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The change in the position of an object is called ____________________.
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24.
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On a distance vs. time graph, distance is usually the ____________________
variable.
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25.
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The force of gravity, the electromagnetic force, the strong nuclear force, and
the weak nuclear force are examples of ___________________________________.
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26.
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The combination of all forces acting on an object is the
_________________________.
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27.
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When the net force on an object is greater than ____________________, the object
will accelerate in the direction of the greater force.
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28.
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Static friction is usually greater than ______________________________.
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29.
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When an object covers equal distances in equal amounts of time, it is moving at
a(n) ____________________ speed.
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30.
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Acceleration is the rate at which ____________________ changes.
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31.
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In order to determine if an object is moving, you must observe the object in
relation to a(n) ___________________________________.
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32.
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Speed measured in an infinitely small time interval is
___________________________________.
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33.
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On a distance vs. time graph, time is represented on the x-axis as the
____________________ variable.
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34.
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A(n) ____________________ line on a velocity vs. time graph means that the
velocity changes by the same amount over each time interval.
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35.
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The friction between a book at rest and the desk it is lying on is an example of
____________________ friction.
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36.
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Baseball players wear batting gloves to increase ____________________.
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37.
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An action exerted on a body to change its state of rest or motion is a(n)
____________________.
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38.
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In the acceleration equation, the change in an object’s velocity is
represented by the symbol ____________________.
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