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

How is impulse defined?

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 formula for calculating momentum?

Back

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

Front

If a car has a mass of 1000 kg and is moving at 20 m/s, what is its momentum?

Back

20000 kg*m/s south.

Front

What factors affect the momentum of an object?

Back

Momentum depends on the object's mass and velocity.

Front

What is the relationship between impulse and momentum?

Back

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

Front

Calculate the impulse on a football kicked with a force of 20 N for 0.3 s.

Back

6 N*s.

Front

If an object has an initial momentum of 30 kg*m/s and a final momentum of 40 kg*m/s, what is the impulse?

Back

10 N*s.

Front

What is the unit of momentum?

Back

The unit of momentum is kg*m/s.

Front

What is the unit of impulse?

Back

The unit of impulse is N*s (Newton-seconds).