Linear Momentum and Collisions MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The change in momentum of an object is equal to the:
A. Impulse applied to the object
B. Force applied over a period of time
C. Change in kinetic energy
D. Work done on the object
Answer: Impulse applied to the object
For an object in free fall, the momentum:
A. Increases as the velocity increases
B. Decreases as the velocity decreases
C. Remains constant
D. Is zero
Answer: Increases as the velocity increases
If two objects collide and there is no net external force, their combined momentum after the collision:
A. Remains the same as before the collision
B. Increases
C. Decreases
D. Depends on the masses of the objects
Answer: Remains the same as before the collision
When calculating momentum, the mass of the object should be measured in:
A. Kilograms
B. Grams
C. Pounds
D. Newtons
Answer: Kilograms
In a two-dimensional collision, the conservation of momentum applies:
A. In both the x and y directions
B. Only in the x direction
C. Only in the y direction
D. In neither direction
Answer: In both the x and y directions
During a collision, if the total kinetic energy is conserved, the collision is classified as:
A. Elastic
B. Inelastic
C. Perfectly inelastic
D. Non-elastic
Answer: Elastic
The impulse-momentum theorem states that:
A. Impulse is equal to the change in momentum
B. Impulse is equal to the change in kinetic energy
C. Momentum is equal to the change in impulse
D. Impulse is proportional to the mass
Answer: Impulse is equal to the change in momentum
When two objects collide and one object is initially at rest, the total momentum of the system:
A. Is conserved
B. Is increased
C. Is decreased
D. Depends on the direction of the collision
Answer: Is conserved
For an object moving with constant velocity, the momentum is:
A. Constant
B. Increasing
C. Decreasing
D. Zero
Answer: Constant