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WorksheetsQuiz: Momentum and Impulse
Total questions: 33
Worksheet time: 23mins
The momentum of an object depends upon the object's ___________&_____________.
size and shape
mass and speed
mass and veloctiy
mass and energy
Which one of the following units represents the standard metric units of momentum
Newtons * meter / second
Kilograms * meter / second2
meter / second
Kilograms * meter / second
Which one of the following units represents the standard metric units of impulse
Kilograms * meter / second2
Newton * meter
meter / second2
Newton * second
p before is less than p after
p before is the same as p after
p before is more than p after
momentum is never the same
An object that has momentum can be described as _________
a) changing its velocity
b) moving fast
c) resisting changes in its state of motion
d) inertia in motion
e) encountering a net force
An egg landing on a soft surface will remain intact. The surface increases the _____ and decreases the _____ during the impact
impulse, time
impulse, force
force, time
time, force
Padded dashboards in cars are safer in accidents than non padded ones because the passenger hitting the dash has...
a) Increased time of impact
b) decreased impulse
c) increases impact force
d) a and b
A freight car of mass 20,000kg moves along a track at 15 m/s. What is the momentum of the car?
30,000 kg*m/s
3,000 kg*m/s
300,000 kg*m/s
3,000,000 kg*m/s
Which object has more momentum?
10kg mass at rest
10 kg mass moving at 1 m/s
10 kg mass moving at 2 m/s
10 kg mass moving at 3 m/s
For the momentum equation P=mv, if momentum is held constant and mass is decreased by 4, how does this affect velocity?
Velocity is decreased by 4
Velocity is increased by 4
Velocity is decreased by 2
Velocity is increased by 2
A car is at a red light. The driver reaches a speed of 20m/s in 3 seconds. The car is 1500kg. How much force did the engine supply to the car?
10 N
10,000 N
1500 N
1 N
If the car's engine provided 200N of force for 3.9 seconds, what is the impulse of the car?
780 kgm/s
51.3 kgm/s
0.0195 kgm/s
0 kgm/s
What is the TOTAL MOMENTUM for the system BEFORE COLLISION?
14 kg m/s
24 kg m/s
10 kg m/s
-24 kg m/s
A bicycle has a momentum of 24 kg•m/s. What momentum would the bicycle have if it had twice the mass and was moving at the same speed?
twice the momentum; 48 kg*m/s
1/2 the momentum; 12 kg*m/s
4x the momentum; 96 kg*m/s
1/4 the momentum; 6 kg*m/s
Which equation is used to calculate momentum (p)?
p = m v
p = 21 m v2
p = F t
p = vm
What is the name for the "quantity of motion" of an object? It tells how hard an object is to stop. (It is the product of mass times velocity.)
acceleration
mass
kinetic energy
momentum
Two identical cars, traveling at the same speed, crash into a wall. Since both cars have the same change in momentum, how can the force experienced by the passengers be decreased?
Decreasing the time of the impact
Increasing the time of the impact
Both car accidents will experience the same force.
A 600 g basketball, a 57 g tennis ball, a 46 g golf ball and a 2.7 g table tennis ball are moving with the same velocity. Which ball has the greatest momentum?
table tennis ball
tennis ball
basketball
golf ball
Which of the following has the least momentum?
a 100 kg mass with a 2 m/s velocity
a 1 kg mass with a 100 m/s velocity
a 10 kg mass with an 11 m/s velocity
a 0.5 kg mass with a 1000 m/s velocity
The brakes on your car fail and you need to stop. Why is it better to drive into a haystack than a brick wall if both will stop the car?
the haystack provides the same impulse, but for a longer time
the brick wall is actually better to hit because it stops you quicker
the haystack provides a smaller impulse
the haystack provides the same impulse, but for a shorter time
