Momentum, Impulse, Conservation of Momentum

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

State 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

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is the mass of the object and v is its velocity.

Front

What happens to momentum in a perfectly elastic collision?

Back

In a perfectly 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.

Front

If two objects collide and stick together, what type of collision is it?

Back

It is called a perfectly inelastic collision.

Front

What is the relationship between mass and velocity in terms of momentum?

Back

Momentum is directly proportional to both mass and velocity; increasing either mass or velocity increases momentum.

Front

Calculate the momentum of a 50 kg object moving at 10 m/s.

Back

Momentum = 50 kg * 10 m/s = 500 kg(m/s).

Front

What is the effect of increasing the time of impact on impulse?

Back

Increasing the time of impact reduces the force experienced by an object, as impulse is equal to the product of force and time.