Momentum and Impulse

Question 1

What is the acronym for conversion?

Answer 1

Kermit 
Has
Dandruff
But
Doesn’t 
Care
Much

Question 2

Does momentum have direction?

Answer 2

Yes it’s a vector quantity

Question 3

What is the formula for impulse?

Answer 3

I = delta p = Force delta t = mvf -mvi

Question 4

How does an airbag affect the impulse formula?

Answer 4

It lessens the force by increasing the time

The impulse remains the same

Question 5

What is an isolated system?

Answer 5

It is one which has no external forces

Momentum is always conserved in an isolated system

Question 6

What is the formula used when two objects collide, stick and travel off as one?

Answer 6

m1vi1 + m2vi2 = mtvf

Question 7

What is the formula used when two objects collide, do not stick, and travel off as separate objects?

Answer 7

m1vi1 + m2vi2 = m1vf1 + m2vf2

Question 8

What is the formula used when two objects collide then fly apart in different directions?

Answer 8

0 = m1vf1 + m2vf2

Question 9

What is an elastic collision?

Answer 9

Where both kinetic energy and momentum are conserved

Question 10

What is an inelastic collision?

Answer 10

Where momentum is conserved but kinetic energy is lost due to sound, heat, or light

A collision is inelastic when two objects stick together after they collide