Linear Momentum and Collisions MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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In an elastic collision, which of the following is conserved?
A. Kinetic energy and momentum
B. Momentum only
C. Kinetic energy only
D. Potential energy and momentum
Answer: Kinetic energy and momentum
If two objects of different masses collide elastically, which of the following is true about their velocities after the collision?
A. The relative velocity remains the same
B. The relative velocity changes
C. The velocity of each object is the same
D. The velocity of the more massive object increases
Answer: The relative velocity remains the same
When two objects collide elastically, the total momentum and total kinetic energy:
A. Are both conserved
B. Are both not conserved
C. Only momentum is conserved
D. Only kinetic energy is conserved
Answer: Are both conserved
The momentum of an object is calculated by multiplying its:
A. Mass and velocity
B. Mass and acceleration
C. Force and time
D. Energy and velocity
Answer: Mass and velocity
In an elastic collision between two objects, what is true about the total kinetic energy of the system?
A. It is conserved
B. It is lost
C. It is increased
D. It becomes zero
Answer: It is conserved
When two objects collide and one object is initially at rest, the total momentum of the system is:
A. Conserved
B. Lost
C. Doubled
D. Increased
Answer: Conserved
During a collision, the impulse experienced by an object is equal to the change in its:
A. Momentum
B. Kinetic energy
C. Velocity
D. Acceleration
Answer: Momentum
When two objects collide and the total initial momentum is zero, what is the total momentum after the collision?
A. Zero
B. Equal to the momentum of one object
C. Double the initial momentum
D. Equal to the total initial momentum
Answer: Zero
If two objects of different masses collide and stick together, the final velocity of the combined mass is determined by:
A. Conservation of momentum
B. Conservation of kinetic energy
C. Newton's second law
D. The initial velocities of the objects
Answer: Conservation of momentum