Basic Idea:

• Measure the radial force for a mass traveling in a circular orbit.

• 8 

	What:	How Many:	Where:
	Rotating "Bob" apparatus	1	non-Majors storeroom, shelf H1, H2, H3
	Length of string & paper clip	1	non-Majors storeroom, shelf H1, H2, H3
	0.5 m meterstick	1	non-Majors storeroom, shelf AA3
	Meterstick calipers	2	non-Majors storeroom, shelf H3
	Masses: 1, 2, 5, 10, 50, 100, 200 g	2 of each	non-Majors storeroom, shelf D3
	50 g mass hangers	1	non-Majors storeroom, shelf D3
	Rack to hold masses	1	non-Majors storeroom, shelf D3
	Photogates	1	non-Majors storeroom, BB3
	Small round bubble level	1	non-Majors storeroom, shelf AA3
	Vernier calipers	1	non-Majors storeroom, shelf BB3
Shared Stuff - Place on long movable table
	Bathroom Scale (We now have two that read in kilograms!)	2	non-Majors storeroom, shelf E1
	Wood drafting board	2	non-Majors storeroom, shelf J2
Before each lab section:
	Electronic Balance (2 kg @0.1 g)	1	Jeff will put in place before each lab

Notes:

• Lab Setup (photo details):
  • The flag should be installed on the Bob apparatus before lab, and removed before storage. A 5/64" hex head wrench is required (in the box)
  • Be sure that Bob apparatus are set up on each bench exactly as shown so that they match student's instructions
  • Put a small round bubble level on the platform of each apparatus. Jeff will level them before they're used
  • The bathroom scale and drafting board is used for the part of the experiment that takes place in the elevator