Linear Momentum and Collisions MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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In a perfectly elastic collision, the total momentum and total kinetic energy of the system are:
A. Both conserved
B. Only momentum is conserved
C. Only kinetic energy is conserved
D. Neither is conserved
Answer: Both conserved
The change in momentum of an object is equal to the impulse applied to it. What does impulse depend on?
A. Force and time
B. Mass and velocity
C. Energy and velocity
D. Force and distance
Answer: Force and time
In a collision where two objects of different masses collide elastically, which of the following is conserved?
A. Both momentum and kinetic energy
B. Momentum only
C. Kinetic energy only
D. Neither momentum nor kinetic energy
Answer: Both momentum and kinetic energy
In an elastic collision between two objects, the total kinetic energy of the system after the collision is:
A. Equal to the total kinetic energy before the collision
B. Less than the total kinetic energy before the collision
C. Greater than the total kinetic energy before the collision
D. Zero
Answer: Equal to the total kinetic energy before the collision
When analyzing collisions, which conservation law helps determine the final velocities of the objects involved?
A. Conservation of momentum
B. Conservation of energy
C. Newton's second law
D. Newton's third law
Answer: Conservation of momentum
The principle of conservation of momentum can be applied to which of the following types of systems?
A. Any closed system with no external forces
B. Any system with external forces
C. Only elastic systems
D. Only inelastic systems
Answer: Any closed system with no external forces
In a collision between two objects, the quantity that measures how much momentum changes is:
A. Impulse
B. Force
C. Work
D. Energy
Answer: Impulse
In a collision where the objects have the same mass and move with the same velocity but in opposite directions, the total momentum is:
A. Zero
B. Double the initial momentum
C. Equal to the sum of their individual momenta
D. Equal to their average momentum
Answer: Zero
When calculating the momentum of an object, which quantity is needed?
A. Mass and velocity
B. Mass and acceleration
C. Force and time
D. Energy and velocity
Answer: Mass and velocity