Momentum, Impulse, and Crash Scenes

http://www.edheads.org/activities/crash_scene/swf/index.htm

You will have one hour to complete as much of the investigation as possible.

Momentum problem day.

Watch the Khan academy video as a class


Go through the worksheet packet as far as possible.   This should include the first two worksheets by tomorrow.

Lesson Plans for April 20

PHET REVIEW FOR TOMORROW's TEST
(each is worth 5 points EC)

LESSON 1

LESSON 2

Monday, 4/18

Bungie Barbie Writeup

Please finish the test review in your packet.   Questions 7 and 13 are optional.

The review will be corrected on Wednesday in class, so you should have tried all problems.  TEST Thursday.

Bungie Barbie is due by Monday, but earlier is preferred.

Barbie and the SeatBelt

Look at the following:

http://www.teachersdomain.org/asset/eng06_vid_airbag/

http://www.safetyforum.com/seatbelts/


Draw a diagram for your force net for both the collision into the wall and the collision with cups.


Determine Barbie's g-force in each case (accel/accel(g)).  Determine the net force on Barbie, using the accelerometer value, and the Net force on Barbie and the car.

Comment on the design of your seat belt and bumper in terms of a) durability b) safety and c) similarity to air bag principles.

Write a one page summary of what you have learned.

Wed, 4/6

1.  Take the test.  The substitute will have it for you.  No more than 3 people at a table, please.  Others can use a whiteboard or the counters as their space.  

When you get finished, you will be going to the Phet Filing Cabinet lab and doing the activity found here   Please note that the 'coefficienct of friction' is what we call 'mu'