Impulse-Momentum

Front

What is impulse?

Back

Impulse is the product of the average force applied to an object and the time duration over which the force is applied. It is also equal to the change in momentum of the object.

Front

What is the formula for calculating impulse?

Back

Impulse (J) = Force (F) × Time (t) or J = Δp (change in momentum).

Front

How is momentum defined?

Back

Momentum is defined as the product of an object's mass and its velocity. It is a vector quantity.

Front

What is the formula for calculating momentum?

Back

Momentum (p) = Mass (m) × Velocity (v).

Front

What is the unit of impulse?

Back

The unit of impulse is Newton-seconds (N⋅s) or kg⋅m/s.

Front

What is the relationship between impulse and momentum?

Back

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

Front

If a 5 N force is applied for 2 seconds, what is the impulse?

Back

Impulse = 5 N × 2 s = 10 N⋅s.

Front

Can two objects have the same momentum?

Back

Yes, two objects can have the same momentum if they have different masses and velocities.

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 impulse experienced by an object that comes to a stop?

Back

The impulse experienced is equal to the negative of its initial momentum.