Show:
Momentum
Impulse
Impulse and Momentum
Vocabulary
Units and Variables
100

What is the equation for momentum?

p=mv

100

If you have the Impulse and Force what can you find?

Time

100

True of false: The change in Momentum is the same magnitude as Impulse

True

100

This is the product of an object's mass and velocity. 

What is momentum?

100

m is the variable for 

What is mass?

200
If you decrease the velocity does the momentum increase or decrease?
Decrease
200
If the force increases then what happens to the impulse?
It increases
200

What is pf - pi?

Impulse or the change in Momentum (or delta-p)

200

This is defined as a change in momentum. 

What is impulse? 

200

This is the unit for momentum.

What is kilogram meters per second (kg*m/s)? 

300

What do you get when you divide momentume by velocity?

Mass

300
What do you have when you divide the Impulse by the Time?
Force
300

Are Momentum and Impulse scalars or vectors?

Vectors

300

This a collision where momentum and kinetic energy are both conserved.

Elastic collision

300

This is the variable for Momentum.

What is p?

400

A .25kg marble is rolling on the floor at 2m/s, what is the momentum? (Remember to include units!)

.5 kg m/s

400

If a 2N force is applied on an object for 10 seconds what is the Impulse

20 N s

400

If the change in momentum is 10 kg m/s, then what is the Impulse?

10 N*s

400

This is a collision where the objects stick together after colliding.

Inelastic collision

400

What is the equation for impulse, as described using the momentum equation?

J = Ft

P = mv

J = delta P

Ft = mv

Force time change in time = mass times change in velocity

500

What law says the total momentum of a system before an event is the same as after the event?

The Law of Conservation of Momentum

500

For a constant force, if the duration of impact upon an object is doubled, how is the impulse affected?

It will be doubled. 

500

Why is it important to “follow through” when trying to hit a baseball?

We want to create as much change in momentum (delta P, or J) as possible. In order to do so, we can increase time of impact. 

J = Ft

500

What is the definition for conservation of momentum?

The total momentum of a system before an event is the same as after the event if there are no net forces acting on the system.

500

What is the equation for conservation of momentum?

m1v1 + m2v2 = m1v1' + m2v2'