PY211 Demos - Fall 1998

BU Physics demo room home page

Course schedule:

• section A - TR 11 am in SCI 107 - Simmons/Chivukula
• section B - TR 5 pm in SCI 113 - Chivukula/Simmons

Day 1 - 9-3-98 - Intro

• 2-meter stick and toy bulldozer
• mass on a Slinky
• Equal time / equal distance drop 1C20.20

Day 2 - 9-8-98 - Constant acceleration

• tennis ball
• Vectors on the blackboard 1A40.30
• Simultaneous fall (independence of x and y) 1D60.20 (also includes slow-motion video)

Day 3 - 9-10-98 - Projectile motion

• Howitzer and tunnel on incline 1D60.15
• Water trough trajectory 1D60.65
• Monkey and hunter 1D60.30

Day 4 - 9-15-98 - Circular motion / relative motion

• Crossing the river 1E10.10
• Coriolis ball on turntable 1E30.28
• Candle in a bottle 1G20.10

Day 5 - 9-17-98 - Newton's first and second laws

• Inertia cylinder 1F20.33
• Acceleration block 1G10.25
• Acceleration pendulum cart 1G20.85
• Inertia balls 1F20.10
• Candle in a bottle 1G20.10

Day 6 - 9-22-98 - Newton's third law

• Suspended-ball accelerometer 1G20.76
• Acceleration pendulum cart 1G20.85
• Newton's sailboat 1H10.20
• Dropped Slinky 1G20.45

Day 7 - 9-24-98 - Applications of Newton's laws

• Penny and feather 1C20.10
• Atwood's machine 1G10.40
• Static vs. sliding friction 1K20.30
• Weight dependence of friction 1K20.15
• Area dependence of friction 1K20.20

Day 8 - 9-29-98 - Uniform circular motion

• Whirligig conical pendulum 1D50.20
• Pail of water 1D50.40
• Carnival ride model 1D50.30
• Stretching a spring 1R10.10

Day 9 - 10-1-98 - Work and energy

• Pulleys 1M20.10
• block to slide
• ball to throw

Day 10 - 10-6-98 - Work and energy

• Stopped pendulum 1M40.15
• block to slide
• Pasco cart collision with sliding mass 1M30.10
• Happy and sad balls 1R40.30

Day 11 - 10-8-98 - Potential energy

• Pasco cart collision with sliding mass 1M30.10
• Happy and sad balls 1R40.30
• Potential energy well 1M40.25
• Racing balls
• Power with truck on incline

Day 12 - 10-13-98 - Center of gravity

• Plumb bob method (big pig) 1J10.10
• Spring apart PASCO carts 1N20.22

Day 13 - 10-15-98 - Inelastic collisions

• Car crashes 1N10.35
• PASCO carts 1N30.32
• CO₂ rocket 1N22.33

Day 14 - 10-20-98 - Elastic collisions

• Newton's cradle 1N30.10
• PASCO carts 1N30.32
• Baseball on basketball 1N30.60
• Astroblaster 1N30.60

Day 15 - 10-22-98 - Rotational kinematics

• wheel to spin
• Inertia wands 1Q10.10
• Angular acceleration wheel 1Q20.20
• Acceleration faster than g 1Q20.50 (also on freeze-frame video)
• Ball on a string

Day 16 - 10-27-98 - Rotational dynamics

• Angular acceleration wheel 1Q20.20
• Torque rod 1J40.21
• Adjustable angular momentum 1Q20.10
• Racing rings, disks, and spheres 1Q10.30
• All disks roll the same 1Q10.35
• Sweet spot 3A15.50
• Big yo-yo

Day 17 - 10-29-98 - Angular momentum

• Sweet spot 3A15.50
• Rotating platform and dumbbells 1Q40.10
• Pulling on a whirlygig 1Q40.25
• Rotating platform and bicycle wheel 1Q40.30
• MITAC gyroscope 1Q50.30
• Tossing the book 1Q60.40

Day 18 - 11-3-98 - Gravitation

• Performa running the Gravitation simulation program

Day 19 - 11-5-98 - Fluids (statics)

• Dropping plate 2B20.20
• Pascal's vases 2B20.40
• Weigh submerged block 2B40.10
• Weight in a boat

Day 20 - 11-10-98 - Fluids (dynamics)

• Velocity of efflux 2C10.10
• Venturi tube 2C20.10
• Funnel and ball 2C20.35
• styrofoam balls to throw

Day 21 - 11-12-98 - Simple harmonic motion

• Simple pendula 3A10.10
• 4:1 pendula 3A10.14
• Torsional pendulum 3A10.30
• PASCO cart between springs 3A20.35

Day 22 - 11-17-98 - Damped and driven harmonic motion

• Mass on a spring 3A20.10
• Eddy current pendulum 3A50.77
• Tacoma narrows bridge film 3A60.10
• Driven PASCO cart 3A60.20
• Barton's pendulum

Day 23 - 11-19-98 - Temperature and heat

• Ball and ring 4A30.21
• Boil water in a paper cup 4B50.20
• Ice bomb in liquid nitrogen 4C20.20
• Dropping lead shot (mechanical equiv. of heat) 4B60.10
• Conduction with liquid crystals 4B30.53

Day 24 - 11-24-98 - First law of thermodynamics

• Heat engine 4F30.15

Day 25 - 12-1-98 - Ideal gas law

• Balloon in liquid nitrogen 4E10.20
• Constant volume bulb 4E30.10
• Boyle's law syringe
• Brownian motion model 4D10.20
• CENCO kinetic theory apparatus 4D30.10

Day 26 - 12-3-98 - Thermodynamics of an ideal gas

• Rheoscopic fluid 4B20.77
• Heat engine 4F30.15

Day 27 - 12-8-98 - Heat engines and the second law of themodynamics

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

Day 28 - 12-10-98 - Entropy

• Heat engine 4F30.15
• Entropy gumballs
• Food coloring in water
• Maxwell's demon : anti-entropy device