Basic Idea:

• Study the forces between objects that interact with each other during collisions, and to examine the consequences of Newton's third law as applied to interaction forces between objects.

• 8 

	What:	How Many:	Where:
Stuff From Last Week That Isn't Needed - Put Away
	Chunk of clay (small & large)	1 each	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Clay holder for Force Sensor	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Modified Rubber Tip for Force Sensor	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Spring Bumper for Force Sensor	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Track Bracket	1	non-Majors storeroom, shelf E4, E5 or E6
	0.5-m meter stick	1	non-Majors storeroom, shelf AA2
	Short rod & base	1	non-Majors storeroom, shelf A3
	Meter stick clamp	1	non-Majors storeroom, shelf C3
Stuff Left Over From Last Week - Leave in Place
	Vernier Dynamics Tracks (see Vernier hardware photos below!)	1	non-Majors storeroom, on top of the shelves
	Vernier Cart without plunger Direction flipped from last week	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Dual-Range Force Sensor	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Motion Detector Direction flipped from last week (see setup diagram below)	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Motion Detector Reflector Flag	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier LabPro interface	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Motion Detector mounting bracket	1	non-Majors storeroom, shelf E4, E5 or E6
New or Additonal Items Used This Week
	Vernier Track Bumper Direction flipped from last week (see setup diagram below)	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Cart with plunger	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Dual-Range Force Sensor - need a second one	1	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Cart mass (rectangular) - 500 g	3	non-Majors storeroom, shelf E4, E5 or E6
	Vernier Screw and wingnut (attaches mass to cart)	1	non-Majors storeroom, shelf EE4, E5 or E65
	Vernier flag post & short screw (mounts force probe to cart)	2	non-Majors storeroom, shelf E4, E5 or E6
Stuff Jeff Will Deal With
	Laptop computer & power bricks	1	Astronomy lab
	Electronic Balance (2 kg @0.1 g)	1 per lab bench	Majors storeroom

Notes:

Note to Jeff: Order 4 packs of EKG Electrodes if needed!
Needed next semester for EKG experiment!!

• Lab Setup (photo details):
  • Note that this setup uses many of the parts from the previous week
  • The motion detector and end stop have to be flipped from last week's setup (motion detector on left side of track, end stop on right side), as well as the direction of the cart without plunger ('magnet side' facing motion detector)
  • The force sensor that is still connected (from last week) to CH1 is now on the left side of the track; the sensor added this week, on the right side of the track, gets connected to CH2.
  • An electronic balance is needed on each lab bench for this experiment. Jeff will place them in the lab before each section.

Vernier Hardware (photos courtesy Vernier Software & Technology)
Vernier LabPro Interface
Vernier Motion Detector
Vernier Motion Detector Reflector Flag
Vernier Dual-Range Force Sensor
Vernier Cart (w/plunger)
Vernier Cart (w/o plunger)
Vernier cart mass, screw & wingnut
Vernier Dynamics Track, adjusting legs & Adjustable End Stop (track bumper)
Vernier Motion Detector Bracket