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WorksheetsMomentum
Total questions: 15
Worksheet time: 8mins
With what constant velocity does an object of mass 5kg move if its momentum is 10kg⋅m/s?
10m/s
5m/s
2m/s
4m/s
50m/s
An elevator is initially moving with a velocity of 5m/s in the vertical direction with a momentum of 5000kg⋅m/s. If the elevator starts to slow down so its momentum decreases to 2000kg⋅m/s, then the final velocity of the elevator equals m/s.
2
5
3
1
A rocket of mass 500000kg is moving with a velocity of 3400m/s. Its momentum is kg⋅m/s. Give your answer in scientific notation to one decimal place.
1.5×10^2
5.0×10^5
6.8×10^-3
1.7×10^9
If the mass of an object is doubled and its velocity is decreased to half its former value, what happens to its momentum?
It increases four times.
It stays the same.
It decreases to half its former value.
It doubles.
How many times greater is the momentum of a 1,500kg mass hippo moving at 0.25m/s than a 75g mass bird flying at 10m/s?
50
100
250
500
1,000
What is the momentum of an object that has a mass of 2kg and moves at a constant velocity of 3m/s?
12kg⋅m/s
3kg⋅m/s
9kg⋅m/s
6kg⋅m/s
18kg⋅m/s
What is the mass of an object that moves at a constant velocity of 2.2m/s if its momentum is 3.3kg⋅m/s?
2kg
1kg
1.5kg
1.4kg
3kg
A child of mass 30kg slides down a slide. Near the top of the slide, the child’s velocity is 0.65m/s, while near the bottom of the slide, the child’s velocity is 1.35m/s. How much does the child’s momentum change between these two positions?
19.5kg⋅m/s
60kg⋅m/s
30kg⋅m/s
40.5kg⋅m/s
21kg⋅m/s
A cricket ball of mass 160g has a constant velocity of 10m/s. A golf ball of mass 40g has the same velocity as the cricket ball. What velocity change must the cricket ball undergo to have the same momentum as the golf ball?
-15m/s
-9.975m/s
-6m/s
-9.75m/s
-7.5m/s
The graph shows the change in momentum of an object as its velocity changes. What is the mass of the object?
7kg
2.5kg
6kg
7.5kg
5kg
A swimmer with a mass of 50kg swims in the sea directly away from the shore at 0.25m/s. A wave heads directly toward the shore at 1.25m/s. A part of the wave that has a mass of 12kg hits the swimmer. What is the total momentum of the swimmer and the part of the wave that hits her? Consider the direction of the swimmer’s motion to be positive.
15kg⋅m/s
27.5kg⋅m/s
-2.5kg⋅m/s
2.5kg⋅m/s
12.5kg⋅m/s
A cat has a mass of 3kg. The cat moves 4m in a straight line in a time of 2s. What is the momentum of the cat?
3kg⋅m/s
12kg⋅m/s
6kg⋅m/s
2kg⋅m/s
24kg⋅m/s
Two objects have the same value of momentum. If the first object has a mass of 36kg and a speed of 15m/s and the second object has a mass of 12kg, then the speed of the second object equals m/s.
15
45
5
29
The moving golf ball shown in the diagram hits the golf club and comes to rest. What is the change in the ball’s momentum? Take the direction that the ball moves in as the positive direction.
300kg⋅m/s
45kg⋅m/s
-0.009kg⋅m/s
0.009kg⋅m/s
9kg⋅m/s
A car of mass 400kg is moving at a constant speed of 25m/s when it crashes into a van moving in the opposite direction at a constant speed of 10m/s. The van has a mass of 700kg. What is the total momentum of the car and the van? Consider the direction of the car’s motion to be positive.
160,000kg⋅m/s
3,000kg⋅m/s
90,000kg⋅m/s
17,000kg⋅m/s
1,500kg⋅m/s
