Momentum and Impulse

Front

What does momentum depend on?

Back

Momentum depends on an object's mass and velocity.

Front

What are the standard metric units of momentum?

Back

The standard metric units of momentum are kilograms * meter / second.

Front

Why are padded dashboards safer in car accidents?

Back

Padded dashboards increase the time of impact and decrease the impact force.

Front

Calculate the momentum of a 0.250 kg cart moving at 0.400 m/s.

Back

The momentum is 0.1 kg-m/s.

Front

Which has greater momentum: a turtle crossing a road or a parked car?

Back

A turtle that slowly crosses a road has greater momentum.

Front

Define impulse in relation to momentum.

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 calculating momentum?

Back

The formula for momentum (p) is p = mass (m) * velocity (v).

Front

What is the relationship between impulse and momentum?

Back

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

Front

How does increasing the time of impact affect force during a collision?

Back

Increasing the time of impact decreases the average force experienced during the collision.

Front

What is the unit of impulse?

Back

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