Impulse and Momentum

Front

What is the formula for calculating momentum?

Back

Momentum (p) = mass (m) × velocity (v)

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time. It is calculated as Impulse = Force × Time.

Front

How is momentum conserved in an isolated system?

Back

In an isolated system, the total momentum before an event (like a collision) is equal to the total momentum after the event, provided no external forces act on it.

Front

What is the unit of momentum?

Back

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

Front

If a 10 kg object is moving at 3 m/s, what is its momentum?

Back

30 kg·m/s

Front

What happens to the momentum of an object if its mass is doubled while its velocity remains constant?

Back

The momentum of the object will also double.

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

If two objects collide and stick together, what can be said about their total momentum?

Back

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

Front

What is the effect of a net external force on the momentum of a system?

Back

A net external force acting on a system will change the momentum of that system.

Front

How do you calculate the impulse experienced by an object?

Back

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