PHYSICS. LINEAR MOMENTUM

PHYSICS CBT – MOMENTUM & COLLISIONS (Junior)

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THEORY QUESTIONS WITH CORRECTIONS

1. Define momentum.

Correction: Momentum is the product of mass and velocity of a body. p = mv.

2. State the law of conservation of momentum.

Correction: The total momentum of a system remains constant if no external force acts.

3. Explain elastic collision.

Correction: Elastic collision is a collision in which both momentum and kinetic energy are conserved.

4. What is inertial mass?

Correction: Inertial mass is the resistance of a body to change its state of motion.

5. Distinguish between elastic and inelastic collision.

Correction: In elastic collision, momentum and kinetic energy are conserved. In inelastic collision, only momentum is conserved while kinetic energy is lost.