momentum

Question 1

Objectives
Define momentum
2. Understand the conservation of momentum principle
3. Define types of collisions
4. Explain the relationship between momentum and
impulse
5. Understand how to alter momentum

Question 2

Momentum define it

Answer 2

All objects have mass; so if an object is moving, then it
has momentum

Question 3

what affects p/momentum?

Answer 3

Dependent upon: mass and velocity
p=mv

Question 4

Conservation of Momentum how is it defined?

Answer 4

For a collision occurring between object 1 and object
2 in an isolated system, the total momentum of the
two objects before the collision is equal to the total
momentum of the two objects after the collision”
Momentum Before Collision = Momentum After Collision

Question 5

Change in Momentum = Impulse
how does it happen?

Answer 5

When external forces act they change the momentum
present in a system
Change in momentum is dependent on:
* Magnitude of force
* Length of time over which force acts

Question 6

he impulse-momentum relationship is Newton’s 2nd law written over a time interval rather than an instant

Answer 6

F = m * a
F = m * (v2
-v1
) / t
F * t = (mv)2 - (mv)1
F * t = Δ M

Impulse F t = D M = (mv)2 – (mv)1

Question 7

what are 2 factors that affect impulse or change in momentum?

Answer 7

1) To increase momentum:
* Apply the greatest force,
over a longer period of time
2)To decrease momentum:
* Reduce time the force is
applied (pull away)

Question 8

Would you rather land on a hard surface or a cushioned
mat?
* Would you rather land from a jump with straight legs or
slightly flexed?
* Would you rather catch a baseball in front of your body or
against your body?
* What is the technique to catch a water balloon without it
breaking?
* Why do are we taught to “follow-through” in racquet and
bat sports?

Answer 8

awnser each question

Question 9

True or false is Both the force and the time applied are important for
changing momentum

Answer 9

true