Impulse is the change in momentum. It's calculated as:

* Impulse (J) = Force (F) * Time (Δt)

This means:

* A larger force applied for a shorter time can produce the same impulse as a smaller force applied for a longer time.

Think of these examples:

* A gentle push over a long time: A small force applied for an extended period can still create a significant change in momentum (impulse). Imagine slowly pushing a heavy box across the room.

* A sudden impact: A large force applied for a very short time can also produce a significant impulse. Think of a baseball bat hitting a ball.

Key takeaway: It's not just the size of the force that matters, but also the duration of the force's application.