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Senior High School: 11th and 12th Grade
Physics
Forces - Momentum
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Q.1
An object of mass 1000 kg moving at a velocity of 5 m/s on a level surface, collides with a stationary object of mass 1500 kg. Calculate the momentum of the 1000 kg object before the collision.
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2500 kg m/s
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7500 kg m/s
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5000 kg/s
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5000 kg m/s
Q.2
In a closed system, the total momentum before an event is equal to what?
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2
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Twice the momentum after the event
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The total momentum after the event
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0
Q.3
A 0.5 kg trolley is pushed at a velocity of 1.2 m/s into a stationary trolley of mass 1.5 kg. The two trolleys stick to each other after the impact. Calculate the velocity of the two trolleys straight after the impact assuming a closed system.
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0.3 m/s
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1.2 m/s
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0.6 m/s
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1.6 m/s
Q.4
What is the momentum of an object which has a mass of 5 kg traveling at a speed of 2.5 m/s?
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10 kg m/s
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12.5 kg m/s
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15 kg m/s
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2 kg m/s
Q.5
Momentum is a property of what?
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Computers
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Mobile phones
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Moving objects
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The Great Pyramid
Q.6
A car and a truck are both traveling along a expressway at 30 m/s and 20 m/s respectively. The car has a mass of 1,200 kg and the truck has a mass of 4,500 kg. Which one requires the greater force to stop?
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Car
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Truck
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Both the same
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More details are required to answer the question
Q.7
What is the correct formula for momentum?
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m = p x v
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p = m x v
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v = p x m
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p = 2v x m
Q.8
What is momentum measured in?
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Kilograms
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Metres
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Kilogram meters per second
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Kilogram seconds per meter
Q.9
A 0.5 kg trolley is pushed at a velocity of 1.2 m/s into a stationary trolley of mass 1.5 kg. The two trolleys stick to each other after the impact. Calculate the momentum of the 0.5 kg trolley before the collision.
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1.8 kg m/s
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0.6 kg m/s
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2.4 kg m/s
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0.75 kg m/s
Q.10
An object of mass 1000 kg moving at a velocity of 5 m/s on a level surface, collides with, and becomes attached to, a stationary object of mass 1500 kg. Calculate the velocity of the two moving objects after the collision.
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3 m/s
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5 m/s
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2 m/s
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2 kg/s
0 h : 0 m : 1 s
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