Momentum and Collisions

Front

What is the law of conservation of momentum?

Back

Total momentum of a closed system remains constant if no external forces act on it.

Front

Define elastic collision.

Back

In an elastic collision, both momentum and kinetic energy are conserved.

Front

Give an example of a real-life elastic collision.

Back

Billiards.

Front

How is momentum conserved in a collision?

Back

Conservation of momentum principle.

Front

What are the key differences between elastic and inelastic collisions?

Back

Kinetic energy is conserved in elastic collisions but not in inelastic collisions.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity.

Front

What is the formula for calculating momentum?

Back

Momentum (p) = mass (m) × velocity (v).

Front

What is an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not.

Front

What happens to kinetic energy in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, kinetic energy is lost as the objects stick together.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.