Kinematics Question Preview (ID: 29418)
First Test.
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The USS Enterprise accelerates from rest at 100,000 m/s2 for a time of four seconds. How far did the ship travel in that time?
a) 400,000 meters
b) 800,000 meters
c) 16,000 meters
d) 10,000 meters
A train decreases speed from 30 m/s to 20 m/s while traveling a distance of 250 meters. What is the acceleration of the train?
a) 1 m/s
b) 1 m/s2
c) -1 m/s2
d) -1 m/s
When acceleration is negative, what does that mean?
a) acceleration can never be negative
b) the car is slowing down or going opposite from the direction of the velocity
c) the car is going faster
d) the car is not moving
Can time be negative?
a) no
b) yes
c) does it matter?
d) what is time?
what are the units for acceleration, velocity, time and displacement, respectively?
a) m/s, m/s2, s, m
b) s, m, m/s, m/s2
c) m/s2, m/s, s, m
d) m, s, m/s, m/s2
What is acceleration?
a) the rate of change of time
b) the rate of change in velocity
c) the rate of change of momentum
d) the rate of change of distance
what is the displacement?
a) the change in position of an object
b) the change of time of an object
c) the change of distance of an object
d) i dont know
Starting from rest, the roadrunner accelerates at 3 m/s2 for ten seconds. How far does the roadrunner trace during 10 second time interval?
a) 300 meters
b) 300 m/s
c) 150 m/s
d) 150 meters
A car travels at 25 m/s to the north. It has an acceleration of 2 m/s2 to the south for a duration of twenty seconds. What is the final velocity?
a) 15 m/s
b) -15 m/s
c) 65 m/s
d) none of the above
what is velocity?
a) total displacement divided by the time interval during which the displacement occured
b) total distance divided by the time interval during which the displacement occured
c) total displacement multiplied by the time interval during which the displacement occured
d) total distance multiplied by the time interval during which the displacement occured
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