Momentum

Front

What is momentum?

Back

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

Front

What is the principle of conservation of momentum?

Back

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

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

How is impulse related to momentum?

Back

Impulse is equal to the change in momentum of an object.

Front

What happens to momentum in a collision?

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision.

Front

What is the formula for calculating momentum?

Back

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

Front

How does mass affect momentum?

Back

An increase in mass will result in a proportional increase in momentum if velocity remains constant.

Front

How does velocity affect momentum?

Back

An increase in velocity will result in a proportional increase in momentum if mass remains constant.

Front

What is the relationship between mass and recoil speed in firearms?

Back

The recoil speed of a firearm is less than the exit velocity of the bullet because the firearm has a much greater mass.

Front

Which object has the greatest momentum: a 5 kg object rolling at 2 m/s, a 15 kg object rolling at 2 m/s, a 15 kg object rolling at 1 m/s, or a 4 kg object rolling at 2 m/s?

Back

A 15 kg object rolling at 2 m/s has the greatest momentum.