Momentum and Impulse Conceptual Questions

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

How are impulse and momentum related?

Back

Impulse is equal to the change in momentum of an object, expressed as Impulse = Δp, where Δp is the change in momentum.

Front

What happens to momentum in a closed system?

Back

In a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event, according to the law of conservation of momentum.

Front

What is the formula for calculating momentum?

Back

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

Front

What is the effect of increasing mass on momentum?

Back

Increasing the mass of an object while keeping its velocity constant will increase its momentum.

Front

What is the effect of increasing velocity on momentum?

Back

Increasing the velocity of an object while keeping its mass constant will increase its momentum.

Front

What is the relationship between force, time, and impulse?

Back

Impulse is the product of force and the time duration over which the force acts, meaning greater force or longer time results in greater impulse.

Front

What is an example of a situation where impulse is experienced?

Back

A tennis ball hitting a racket experiences impulse as the force from the racket changes the ball's momentum.

Front

What is the significance of time in impulse?

Back

The longer the time over which a force acts, the smaller the force needed to produce a given change in momentum.