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

How is impulse defined?

Back

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

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

Calculate the momentum of a 5 kg object moving at 10 m/s.

Back

Momentum = mass × velocity = 5 kg × 10 m/s = 50 kg m/s.

Front

What is an elastic collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not conserved.

Front

If a 3 kg object has a momentum of 12 kg m/s, what is its velocity?

Back

Velocity = Momentum / Mass = 12 kg m/s / 3 kg = 4 m/s.

Front

What does the impulse experienced by an object equal?

Back

The impulse experienced by an object equals the change in momentum.

Front

What is the formula for calculating impulse?

Back

Impulse = Change in Momentum = Final Momentum - Initial Momentum.

Front

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

Back

This is an inelastic collision.