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.

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 happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not. The objects stick together after the collision.

Front

What is the unit of momentum?

Back

The unit of momentum is kg·m/s (kilogram meter per second).

Front

How does mass affect momentum?

Back

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

Front

How does velocity affect momentum?

Back

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

Front

What is the relationship between force and impulse?

Back

Impulse is equal to the change in momentum, which is also equal to the force applied multiplied by the time duration of the force.

Front

What is the principle of conservation of momentum?

Back

The principle 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 is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Front

What is the formula for calculating impulse?

Back

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