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.

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 unit of momentum?

Back

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

Front

What is the relationship between impulse and momentum?

Back

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

Front

How does increasing the time of impact affect impulse?

Back

Increasing the time of impact increases the impulse, allowing for a greater change in momentum.

Front

What happens to momentum in a closed system?

Back

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

Front

What is the formula for calculating impulse?

Back

Impulse = Force × Time.

Front

If two objects collide and stick together, what happens to their momentum?

Back

The total momentum before the collision is equal to the total momentum after the collision.

Front

What factors affect the impulse experienced by an object?

Back

The impulse experienced by an object depends on the magnitude of the force applied and the duration of time the force is applied.

Front

What is the effect of dropping an egg into water versus onto a hard surface?

Back

The egg dropped into water experiences a smaller change in momentum due to the water's ability to reduce the force of impact over time.