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

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 to calculate momentum?

Back

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

Front

If an object has a mass of 10 kg and is moving at a velocity of 5 m/s, what is its momentum?

Back

50 kg m/s (calculated as p = mv = 10 kg × 5 m/s).

Front

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

Back

Impulse is equal to the force applied multiplied by the time duration over which the force is applied (Impulse = Force × Time).

Front

How do you calculate the change in momentum?

Back

Change in momentum is calculated as the final momentum minus the initial momentum (Δp = p_final - p_initial).

Front

What is the unit of momentum?

Back

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

Front

If a force of 20 N is applied for 3 seconds, what is the impulse?

Back

60 N·s (calculated as Impulse = Force × Time = 20 N × 3 s).

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 (Law of Conservation of Momentum).

Front

What is the effect of increasing mass on momentum if velocity remains constant?

Back

If mass increases while velocity remains constant, momentum increases proportionally (p = mv).