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

What is the SI unit for momentum?

Back

The SI unit for momentum is kg·m/s.

Front

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

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision (Law of Conservation of Momentum).

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

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

If a car has a momentum of 10,800 kg·m/s and collides with a stationary object, what is the total momentum after the collision?

Back

The total momentum after the collision will be the same, 10,800 kg·m/s.

Front

How does acceleration relate to momentum?

Back

Acceleration is the rate of change of velocity, and since momentum is dependent on velocity, a change in velocity (acceleration) will result in a change in momentum.

Front

What is the effect of a larger mass on momentum?

Back

For a given velocity, a larger mass will result in a greater momentum, as momentum is directly proportional to mass.