Linear Momentum and Collisions MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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In a collision between two objects of different masses, which of the following quantities is conserved?
A. Momentum
B. Kinetic energy
C. Potential energy
D. All of the above
Answer: Momentum
The momentum of an object is calculated by multiplying its mass by its:
A. Velocity
B. Acceleration
C. Force
D. Energy
Answer: Velocity
If two objects collide and their total momentum is conserved, but their total kinetic energy is not conserved, what type of collision is this?
A. Inelastic
B. Elastic
C. Perfectly elastic
D. Explosive
Answer: Inelastic
In a perfectly inelastic collision, what happens to the kinetic energy of the system?
A. Some kinetic energy is converted into other forms of energy
B. Kinetic energy is conserved
C. Kinetic energy increases
D. Kinetic energy becomes zero
Answer: Some kinetic energy is converted into other forms of energy
In an elastic collision, what is true about the total momentum and kinetic energy of the system?
A. Both are conserved
B. Only momentum is conserved
C. Only kinetic energy is conserved
D. Neither is conserved
Answer: Both are conserved
The total momentum of a system of two objects is conserved when:
A. No external forces act on the system
B. External forces act on the system
C. The system is not isolated
D. The objects are not in contact
Answer: No external forces act on the system
In a perfectly elastic collision, the total kinetic energy of the system before and after the collision is:
A. The same
B. Increased
C. Decreased
D. Zero
Answer: The same
In a collision, the impulse experienced by an object is equal to the:
A. Change in momentum
B. Force applied
C. Work done
D. Energy transferred
Answer: Change in momentum
When two objects collide and the total kinetic energy is not conserved, what type of collision is this?
A. Inelastic
B. Elastic
C. Perfectly elastic
D. Explosive
Answer: Inelastic