MOMENTUM AND IMPULSE -II Jot down any questions that you may have

at this point. Turn them in with the class work. Questions will be addressed during the next

class period.

BOUNCING Bouncing is an event in which an object collides

with another object or surface, is deformed in a way that stores energy, and as it returns to it’s original shape (is undeformed) releases energy that allows it to leave with a negative velocity.

Here is conservation of momentum: http://www.youtube.com/watch?v=2W3bq16f1Cw

And with an explanation: http://www.youtube.com/watch?v=b6QzJSUKzQM

stored

Object is deformed

Energy is released when

Force stops

bounce

Change in velocity

From + to -

Δv is greater than just stopping

vf – vo = Δv

-vf – vo = -Δv

Impact force can be nearly 2x

greater than a non-bounce.

Drawing here

Change in momentum

Δp = mΔv

Since Δv is higher

Δp is higher

I = FΔt

I = Δp

Impulse is greater

Impact force is greater

UNIT SCHEDULE Day 1 (11-15): Discuss 6C power point

presentation and problems, View discovery channel videos on momentum, impulse, and collisions

Day 2 (11-19): There will be a sub in class. Students will take notes from power points and work practice problems in notebook. Students will complete 2 assignments (Marvelous Momentum and Minor Momentum) to hand in.

Day 3 (11-21): Quiz- Momentum and Impulse. Students will perform a lab (Momentum, Energy, and Collisions). A formal lab report is due 12/2. The lab report should be typed, double-spaced, printed and turned in.

(CONT.)

Day 4 (11-25): Students will perform an egg toss lab. Complete lab hand out and turn it in. Students will be given the remainder of class to work on their formal lab report due 12/2.

Day 5 (12-2): Formal lab report due. Test Review. Lab Simulation

Day 6 (12-4): Test: Momentum and Impulse (Multiple Choice and Free Response)