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 the product of the average force and the time duration of the force, represented by the formula J = FΔt.

Front

What is the Law of Conservation of Momentum?

Back

The Law of Conservation of Momentum states that in a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event.

Front

What happens to momentum in an elastic collision?

Back

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

Front

What happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not conserved; some kinetic energy is transformed into other forms of energy.

Front

Define elastic collision.

Back

An elastic collision is a collision in which the objects bounce off each other, and both momentum and kinetic energy are conserved.

Front

Define inelastic collision.

Back

An inelastic collision is a collision in which the objects collide and stick together, conserving momentum but not kinetic energy.

Front

What is Newton's 3rd Law of Motion?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass in kilograms and v is velocity in meters per second.

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 the force is applied: J = FΔt.