5.2 Impulse Questions

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time.

Front

What is the formula for impulse (J)?

Back

J = Ft, where J is impulse, F is force, and t is the time duration.

Front

How does impulse relate to momentum?

Back

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

Front

What happens to the force exerted when stopping an object over a longer time?

Back

The stopping force decreases.

Front

What is Newton's 2nd Law of motion?

Back

F = ma, where F is force, m is mass, and a is acceleration.

Front

What is the unit of impulse?

Back

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

Front

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

Back

Impulse is the product of force and the time duration over which the force acts.

Front

If a larger impulse is applied to an object, what happens to its momentum?

Back

The momentum of the object increases.

Front

What is the effect of increasing the time duration of a force applied to an object?

Back

Increasing the time duration reduces the average force required to achieve the same change in momentum.

Front

What is the principle of conservation of momentum?

Back

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