Conservation of Momentum

Front

What is the principle of conservation of momentum?

Back

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

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity, represented as p = mv.

Front

What is an elastic collision?

Back

An elastic collision is one in which both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is one in which momentum is conserved, but kinetic energy is not.

Front

How does momentum change when an object's speed doubles?

Back

The momentum doubles, as momentum is directly proportional to velocity.

Front

What happens to momentum in a closed system during a collision?

Back

The total momentum before the collision equals the total momentum after the collision.

Front

What is the formula for calculating momentum?

Back

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

Front

What is the relationship between force and momentum?

Back

Force is the rate of change of momentum, expressed as F = dp/dt.

Front

What occurs to the momentum of two colliding objects?

Back

The momentum lost by one object is gained by the other, maintaining total momentum.

Front

What is the effect of friction on momentum in a collision?

Back

Friction can reduce the total momentum of the system by converting kinetic energy into thermal energy.