Demo History

# Lecture Demonstrations Laboratory

## Demo Request History

Getting info for CourseID: 480

### PHYS 101: Intro to Physics Concepts - I

TR 11:00-12:15 Room 203/204 Watkins

2000-08-31

2000-09-05
• Air Track Reaction Cars
((fan cart on Pasco track, please)ALSO: bathroom scale on top of lecture bench, with camera on readout. ALSO: baseball and bat, bowling ball on green baby scale, ball on string, medicine ball and one black rolling cart. )

2000-09-07

2000-09-12

2000-09-14
•  video  - Conservative System
( ALSO: small rolling cart (the one I tried was about 6 inches long and weighed 15 Newtons) on a ramp, with Newton scale. want to move cart through three different motions: steep (say 40 degrees) very steep (say 65 degrees) and vertical, and show that force times distance is the same for each. need a string or rod to mark a consistent final vertical height. )
• Reaction Cars
• Fire Extinguisher Rocket Cart

2000-09-19

2000-10-10
• Pressure Gauges
(U-shaped tube with green liquid (manometer?). Want to show what happens when pressure on one side increases, maybe by attaching inflated balloon. ALSO: sphygmomanometer and stethoscope. )
•  video  - Transverse Waves
(want to show reflections at interfaces, using wave machine I guess )

2000-10-12
•  video  - Moment of Inertia Wheel
(do not need hanging weights or timer. ALSO:lacrosse stick and ball. ALSO: Model of human forearm. Last year we used a 40 cm rod of mass 0.4 kg, a "hand" mass of 0.6 kg, and a string to simulate the bicep connected 10 cm from the pivot. This gave a "bicep" tension of about 36 Newtons. It doesn't have to be exactly the same this year. )

2000-10-17
• Simple Machines
(Simple lever (plank, fulcrum, weight). ALSO: simple pulley system in which weight is lifted half the distance that you pull the string (2:1 mechanical advantage). ALSO: Lou's chair lift. ALSO: hydraulic press with camera on it. )

2000-10-26

2000-11-02

2000-11-14
•  video  - Transverse Waves
(Just need a slinky to show transverse and longitudinal waves. ALSO: seismograph that Mike built last year. )