#1
What is the SI unit of impulse?
Newton
Newton-second
Meter per second
Kilogram-meter
#2
Which of the following is a scalar quantity?
Momentum
Velocity
Impulse
Force
#3
If the mass of an object is doubled, and its velocity is halved, how does the momentum change?
Doubled
Halved
Quadrupled
Remains the same
#4
Which of the following is a statement of the law of conservation of momentum?
The total momentum of an isolated system is constant.
Momentum can be created or destroyed in any collision.
Momentum is inversely proportional to velocity.
Only elastic collisions conserve momentum.
#5
In an isolated system, if no external forces act, what happens to the total momentum?
Decreases
Increases
Remains constant
Becomes zero
#6
Which type of collision conserves both kinetic energy and momentum?
Perfectly elastic
Perfectly inelastic
Partially elastic
Completely inelastic
#7
What is the relationship between impulse and change in momentum?
Impulse = Change in Momentum
Impulse = Average Velocity
Impulse = Force × Time
Impulse = Mass × Acceleration
#8
In a collision, if two objects stick together after the impact, what type of collision is it?
Perfectly elastic
Perfectly inelastic
Partially elastic
Completely inelastic
#9
What is the area under a force-time graph equal to in terms of impulse?
Change in velocity
Force
Impulse
Acceleration
#10
What is the formula for impulse?
Impulse = Force × Time
Impulse = Mass × Velocity
Impulse = Momentum × Time
Impulse = Acceleration × Mass
#11
If the net external force acting on a system is zero, what can be said about the total momentum of the system?
It is increasing
It is decreasing
It is constant
It is zero
#12
If the force acting on an object is constant, how is impulse related to the change in momentum?
Impulse is proportional to the change in momentum
Impulse is inversely proportional to the change in momentum
Impulse is equal to the change in momentum
Impulse is not related to the change in momentum
#13
Which of the following is a valid statement regarding the conservation of momentum in a collision?
The total kinetic energy is always conserved.
The momentum of each object is conserved separately.
Only perfectly elastic collisions conserve momentum.
The total momentum of an isolated system is conserved.
#14
In a collision, if the two objects rebound off each other with no deformation and no generation of heat, what type of collision is it?
Perfectly elastic
Perfectly inelastic
Partially elastic
Completely inelastic
#15
If an object experiences a constant force for a longer duration, what happens to the impulse?
Increases
Decreases
Remains constant
Becomes zero