Momentum and Impulse

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

Front

State Newton's 3rd Law of Motion.

Back

For every action, there is an equal and opposite reaction.

Front

What is the Law of Conservation of Momentum?

Back

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

Front

Define elastic collision.

Back

An elastic collision is a collision in which both momentum and kinetic energy are conserved, and the objects bounce apart after the collision.

Front

Define inelastic collision.

Back

An inelastic collision is a collision in which momentum is conserved, but kinetic energy is not; the objects may stick together after the collision.

Front

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

Back

The total momentum before the collision is equal to the total momentum after the collision.

Front

What is the formula for calculating momentum?

Back

p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is the relationship between force and impulse?

Back

Impulse is equal to the change in momentum, which can also be expressed as the product of force and the time duration over which the force acts.

Front

Give an example of an elastic collision.

Back

A good example of an elastic collision is the collision between two billiard balls.