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WorksheetsMomentum
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Compared to a sports car moving at 30 miles per hour, the same sports car moving at 60 miles per hour has
a)
twice as much momentum
b)
four times as much momentum
c)
the same momentum.
d)
Half the momentum
2.
The momentum change of an object is equal to the
a)
velocity change of the object
b)
force acting on it
c)
force acting on it times its velocity
d)
impulse acting on it
3.
The reason padded dashboards are used in cars is that they
a)
decrease the impulse in a collision.
b)
increase the time of impact in a collision.
c)
increase the force of impact in a collision.
d)
decrease the momentum of a collision
4.
A table tennis ball launcher is fired. Compared to the impulse on the ball, the impulse on the launcher is
a)
smaller
b)
larger
c)
the same
5.
A collision is considered elastic if
a)
there is no lasting deformation
b)
the objects don’t stick together.
c)
the objects that collide don't get warmer.
d)
All answers are correct
6.
Which of the following has the largest momentum?
a)
A large truck parked in a parking lot
b)
A tightrope walker crossing Niagara Falls
c)
A pickup truck traveling down the highway
d)
A dog running down the street
7.
A cannon recoils from launching a cannonball. The speed of the cannon's recoil is small because the
a)
impulse on the cannon is less than the impulse on the cannonball.
b)
cannon has far more mass than the cannonball
c)
momentum of the cannon is unchanged.
d)
force against the cannon is relatively smal
8.
Two objects, A and B, have the same size and shape, but A is twice as heavy as B. When they are dropped simultaneously from a tower, they reach the ground at the same time, but A has a higher
a)
acceleration
b)
momentum.
c)
speed.
d)
all answers are correct
9.
The momentum of an object is defined as the object's
a)
force times the time interval.
b)
force times its acceleration
c)
mass times its velocity.
d)
mass times it acceleration.
10.
Suppose an astronaut in outer space wishes to toss a ball against a very massive and perfectly elastic concrete wall and catch it as it bounces back. If the ball is as massive as the astronaut, then
a)
the astronaut's time between catches will decrease as the game progresses
b)
the astronaut will never catch the first bounce.
c)
the astronaut will catch one bounce only
d)
no answer is correct
11.
A table tennis ball moving forward with 5 units of momentum strikes and bounces backward off a heavy bowling ball that is initially at rest and free to move. The bowling ball is set in motion with a momentum of
a)
less than 5 units.
b)
5 units
c)
more than 5 units
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