Day 45: Jump Up Mini-Lab

PhotoGrid_1384487037217

AP Physics C: The Matter and Interactions curriculum has students analyze scenarios using two different systems: the “real” system and the “point-particle system.” Yesterday, we looked at the two pucks demo, which is a great introduction to this type of analysis. Today, students are doing a mini-lab in which they use these two different systems, along with the Energy Principle, to analyze a jump from a crouching position. The jump has 3 distinct points — at rest in crouching position, the instant when the jumper is about to start losing contact with the floor, and the instant when the jumper has reached maximum height above the floor.

Students ultimately determine:

  • the decrease in internal energy of the jumper
  • the speed at which the jumper leaves the floor
  • the average force the floor exerts on the jumper
  • the time the jumper is in contact with the floor

Here’s a copy of the handout (written by Matter and Interactions authors Chabay and Sherwood): JumpMinilab S2005

Advertisements

Tags: , ,

About Frank Noschese

HS Physics Teacher constantly questioning my teaching.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: