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WorksheetsMotion and Force
Total questions: 20
Worksheet time: 20mins
The horses on this carousel are accelerating because _____.
the speed of the horses is constantly inscreasing
the speed of the horses is constantly decreasing
the direction of the horses' motion is constantly changing
the travel time is different for every ride
Instantaneous speed is the rate of motion at an instant in time. Based on this statement a reasonable conclusion is that if an object's instantaneous speed does not change over time, then _____.
the object is quickly speeding up
the object is very gradually slowing down
the object is moving at a constant speed
the object has returned to its beginning position.
Felicia wanted to pull out a particular issue from a pile of magazines. First, she tried pulling slowly, and the whole pile began to move. Then she tried pulling quickly, and the issue she wanted came out without the pile moving. The pile did not move when she pulled quickly because of the _____.
smooth surface of the magazines
inertia of the pile and friction
larger force Felicia applied
friction between the magazines
Which of these is measured in meters per second per second (m/s2)
speed
velocity
acceleration
displacement
A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force. This is an example of
unbalanced forces
displacement
acceleration
balanced forces
Sometimes, people mistakenly stat that velocity and speed are the same thing. People might make such a mistake because they forget that velocity describes both speed and _____.
volume
force
the time interval
direction
Which of the following is NOT an example of unbalanced forces acting on an object?
an acorn falling from a tree
a car moving at a constant speed of 55 mph
a motorcycle changing speed from 50 mph to 70 mph
a truck slowing down as it approaches a red light
A sprinter runs 200 m west and 100 m east. Her displacement is _____.
300 m east
100 m west
300 m west
100 m east
speed can be calculated by dividing distance by _____.
time
displacement
distance
velocity
the speed of a motorcycle at a particular moment is its _____ speed
negative
continuous
average
instantaneous
Earth's plates move only a few _____ per year
kilometers
millimeters
centimeter
meters
Two cars are each traveling at 72km/h. One car is traveling northeast, and the other is traveling south. The two cars have different
velocities
speeds
accelerations
time
A push or pull that can change an object's motion.
force
Inertia
net force
balanced force
What is the change in velocity divided by time?
momentum
force
speed
acceleration
If I threw a rock in space what force would be acting against it?
gravity
friction
electromagnetism
nothing
