Momentum and Impulse

Front

What happens to the momentum of an object when its speed is doubled?

Back

The momentum doubles.

Front

What type of quantity is momentum?

Back

Momentum is a vector quantity.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

Front

Which object has the greatest momentum: A 0.05 kg object rolling at 0.2 m/s, A 0.15 kg object rolling at 2 m/s, A 0.15 kg object rolling at 1 m/s, or A 0.4 kg object rolling at 2 m/s?

Back

A 0.4 kg object rolling at 2 m/s has the greatest momentum.

Front

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

Back

The bike moving at 15 mph has more momentum.

Front

What is impulse?

Back

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

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum (Impulse = Δp).

Front

If a 2 kg object is moving at 3 m/s, what is its momentum?

Back

The momentum is 6 kg·m/s.

Front

What is the unit of momentum?

Back

The unit of momentum is kg·m/s.

Front

What does the conservation of momentum state?

Back

The total momentum of a closed system remains constant if no external forces act on it.