Motion Question Preview (ID: 40647)
Motion Vocab.
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A change in position of an object is its ________.
a) motion
b) acceleration
c) speed
d) inertia
If a force acts constantly on a stationary object, the object will:.
a) remain stationary
b) move at a constant speed in the direction of the force
c) accelerate in the direction of the force
d) accelerate in the opposite direction of the force
If no force is being applied to a stationary object, the object will...
a) remain stationary.
b) accelerate in the direction of the force.
c) move at a constant speed in the direction of the force.
d) accelerate in the opposite direction of the force.
A table exerts a 20 newton force on a 10 kg book lying on the table. The force exerted by the book on the table is
a) 20 N
b) 2 N
c) 0.2 N
d) 0 N
Newton’s first law of motion states that an object
a) will continue moving at the same velocity unless an outside force acts on it
b) will continue moving in a straight line unless an outside force acts on it
c) at rest will remain at rest unless acted on by an outside force
d) all of the above
How might the speed of a vehicle be determined if its speedometer is broken?
a) by measuring velocity and time
b) by measuring distance and time
c) by measuring velocity and distance
d) by measuring acceleration and distance
Two people are pulling on a rope in opposite directions. Neither person is moving the other. Which must be true?
a) They are using no force.
b) They are forcing the rope to bend.
c) They are using the same amount of force.
d) One is using more force
Which best explains how unbalanced forces acting in opposite directions will affect the motion of an object at rest?
a) The object will move in the direction of the lesser force.
b) The object will move in the direction of the greater force.
c) The unbalanced forces will cause the object to remain at rest.
d) The unbalanced forces will cause the object to move at ever-changing speeds.
What is speed?
a) Speed is the distance something travels in a set amount of time.
b) Speed is how fast it takes something to travel a set distance.
c) Speed is the change in velocity of something.
d) Speed is how far something travels in one hour.
What is the speed of an object in a certain direction?
a) speed
b) acceleration
c) motion
d) velocity
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