Unit 2 Section 3 Practice Scrimmage

Front

What is the formula for impulse?

Back

@@ \Delta p = F \cdot t@@, where \Delta p is the change in momentum, F is the force applied, and t is the time duration.

Front

How do you calculate impulse when a force is applied?

Back

Front

What is momentum?

Back

Front

What is the principle of conservation of momentum?

Back

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

Front

Why is momentum conserved in a closed system?

Back

Momentum is conserved because the system is isolated from external influences.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, only momentum is conserved.

Front

What is the unit of impulse?

Back

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

Front

If a force of 10 N is applied for 5 seconds, what is the impulse?

Back

Impulse = Force × Time = 10 N × 5 s = 50 Ns.

Front

What happens to momentum during a collision in a closed system?

Back

Momentum is conserved; the total momentum before the collision equals the total momentum after the collision.

Front

How do you calculate the change in momentum?

Back