PY181 Demos - Fall 1998

BU Physics demo room home page

Course schedule:

• TR 12:30 pm in SCI 111 - Erramilli

Day 1 - 9-3-98 - Intro

• Equal time / equal distance drop 1C20.20
• Penny and feather 1C20.10

Day 2 - 9-8-98 - Constant acceleration

• Penny and feather 1C20.10

Day 3 - 9-10-98 - Constant acceleration

• Simultaneous fall (independence of x and y) 1D60.20 (also includes slow-motion video)

Day 4 - 9-15-98 - Projectile motion

• Howitzer and tunnel 1D60.10
• Monkey and hunter 1D60.30

Day 5 - 9-17-98 - Newton's laws of motion

• Inertia cylinder 1F20.33
• fan cart and PASCO track
• recoil with cart andPASCO track on skateboard
• CO₂ rocket 1N22.33

Day 6 - 9-22-98 - Newton's laws

• CO₂ rocket 1N22.33

Day 7 - 9-24-98 - Friction

• mass and spring scale (model of elevator)
• Persistence of motion on the air track 1F30.10
• Tension in a string 1J30.20

Day 8 - 9-29-98 - Work / Torque

• Pulleys 1M20.10
• Torque rod 1J40.21

Day 9 - 10-1-98 - Center of gravity

• Leaning tower of Lyre 1J11.20
• Plumb bob method (big pig) 1J10.10
• stand to support big pig as table
• Floating hammer 1J20.30
• Balancing bird 1J20.46

Day 10 - 10-6-98 - Uniform circular motion

• Falling off the merry-go-round 1D55.30
• Whirligig conical pendulum 1D50.20 (+ video showing the angle)
• Pail of water 1D50.40
• Carnival ride model 1D50.30

Day 11 - 10-8-98 - Uniform circular motion

• Whirligig conical pendulum 1D50.20

Day 12 - 10-13-98 - Work and energy

• Pulleys 1M20.10
• racing balls

Day 13 - 10-15-98 - Uniform circular motion

• Pile driver and soda cans 1M10.25
• Power with truck on incline

Day 14 - 10-20-98 - Review

Day 15 - 10-22-98 - Test

Day 16 - 10-27-98 - Linear momentum

• Recoil again - collision with happy and sad balls
• Newton's cradle 1N30.10
• PASCO carts 1N30.32
• Double ball drop 1N30.60

Day 17 - 10-29-98 - Linear momentum and angular momentum

• PASCO carts 1N30.32
• Rotating platform and dumbbells 1Q40.10
• Pulling on a whirlygig 1Q40.25
• Rotating platform and bicycle wheel 1Q40.30
• MITAC gyroscope 1Q50.30

Day 18 - 11-3-98 - Stress and strain

• piece of chalk to break by twisting
• Stretching a spring 1R10.10
• Shear book 1R30.10
• masses and cardboard tubes

Day 19 - 11-5-98 - Stress and strain

• Breaking wire 1R20.10 uses solder
• masses and cardboard tubes

Day 20 - 11-10-98 - Simple harmonic motion

• Simple pendula 3A10.10
• 4:1 pendula 3A10.14
• Mass on a spring 3A20.10

Day 21 - 11-12-98 - Damped and driven harmonic motion

• Tacoma narrows bridge film 3A60.10
• Driven PASCO cart 3A60.20
• Barton's pendulum
• inverted filter

Day 22 - 11-17-98 - Fluids

• Crush the can with vacuum pump 2B30.25
• Magdeburg hemispheres 2B30.30
• U-tube open tube manometer
• Weigh submerged block 2B40.10
• beaker of water on a balance
• Venturi tube 2C20.10
• Ball floating in airstream 2C20.30

Day 23 - 11-19-98 - Fluid dynamics

• Venturi tube 2C20.10
• Ball floating in airstream 2C20.30
• Funnel and ball 2C20.35
• styrofoam balls to throw
• PASCO cart with Bernoulli attachment

Day 24 - 12-1-98 - Viscosity

• dropping balls through glycerine

Day 25 - 12-3-98 - Turbulent flow

• Fluid stick
• Haden's central force demonstrator

Day 26 - 12-8-98 - Thermodynamics

• Heat engine 4F30.15
• Stirling engine 4F30.10
• Entropy gumballs

Day 27 - 12-10-98 - Heat transfer

• Convection with rheoscopic fluid 4B20.77
• Conduction with liquid crystal indicator 4B30.53
• Leslie cube 4B40.30
• Two can radiation 4B40.40