Momentum and impulse

Front

What is the formula to calculate momentum?

Back

p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is the unit of momentum?

Back

The unit of momentum is kg*m/s.

Front

What type of quantity is momentum?

Back

Momentum is a vector quantity.

Front

What does it mean for an object to have momentum?

Back

An object that has momentum is having its mass in motion.

Front

How does a padded dashboard in a car increase safety during an accident?

Back

It increases the time of impact, which decreases the impact force.

Front

If a freight car has a mass of 20,000 kg and moves at 15 m/s, what is its momentum?

Back

300,000 kg*m/s.

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

What is the formula for impulse?

Back

Impulse = Force × Time.

Front

How can increasing the time of impact affect the force experienced by an object?

Back

Increasing the time of impact decreases the force experienced by the object.