Physics 207 (Sprott) Lecture Demonstrations Fall 1994 Friday, September 2 Introduction to the Course Handouts Wednesday, September 7 Measurements Classical and Modern Physics posters Meter stick and length standards Masses and balance scale Clock Metronome Friday, September 9 Problem Solving and Error Analysis Spherical flask of liquid (17.5-cm diameter) Balance scale (to weigh sphere) 4 1-kg masses Meter Stick Large Wooden Calipers Monday, September 12 Vectors Force table String and block Wednesday, September 14 1-D Motion Rubber ball Ball of cotton Guinea and feather tube Acceleration track Crisp dollar bill (reaction time) Meter stick (reaction time) Friday, September 16 Frames of Reference Frames of Reference film (30 min) Rubber ball Monday, September 19 2-D Motion Rubber ball Dropped and fired balls Ballistics car Water stream demo with protractor Monkey and hunter Ball on a string IBM computer and large monitor Wednesday, September 21 Laws of Motion Rubber ball 1-kg mass Beaker and cloth Pail of water Ball and cut string Air track Inertia ball Wood block Rope anchored in wall Hammer and nail Ball on a string Friday, September 23 Physics of Imagination and Creativity (Cameron) See Cameron for any demos Monday, September 26 Laws of Motion (continued) Rubber ball Spring scale with mass Slide of coefficients of friction Block and string Inclined plane with blocks and carts Atwood Machine Wednesday, September 28 Exam Review No demos Friday, September 30 Exam #1 No demos Monday, October 3 Circular Motion Overhead projector Ball on a string Conical pendulum Block on rotating table Object falling in viscous fluid Wednesday, October 5 Work and Energy Rubber ball Block and string Mass on a spring Air track Springs with different spring constants Friday, October 7 Feynman The Pleasure of Finding Things Out (Feynman video) - 55 minutes Monday, October 10 Potential Energy Rubber ball Wood block Mass on a spring Bowling ball pendulum Come-back can Ball rolling in troughs Loop-the-loop Weight-lifting machine (power demo) 1-kg mass Wednesday, October 12 Linear Momentum and Collisions Rubber ball Non-bouncing ball Air track Momentum balls Air table Water rocket CO2 rocket Rotating platform with basketball and CO2 Rocketcycle Friday, October 14 Seasons, Tides and Phases of the Moon A Private Universe (video) - 18-minute version Globe and bright light source Solar system model Tennis ball Monday, October 17 Rotational Motion Center-of-gravity boards Cylinder, sphere, disk, hoop samples Torque board Rolling chain Weight and axle Moving spool Yo-yos Rotating platform Center-of-mass cone on inclined plane Wednesday, October 19 Angular Momentum Objects rolling down inclined plane Ball on string Rotating masses on pulleys Barbells on rotating platform Gyroscopes (including bicycle wheel) Spinning tops Friday, October 21 Physics of the Body (Cameron) See Cameron for demo list Monday, October 24 Catchup Lecture Demos to be determined Wednesday, October 26 Exam Review No demos Friday, October 28 Exam #2 No demos Monday, October 31 Static Equilibrium and Elasticity Overhead Projector Wooden block Rubber ball Leaning tower Deck of cards Seesaw Ladder against wall Horizontal string with weight at center Block and tackle Pulleys (mechanical advantage) Wednesday, November 2 Oscillatory motion Mass on a spring (with dashpot) Simple pendulum Comparison with circular motion Physical pendulum Torsional pendulum Coupled pendula Wilberforce pendulum Driven pendulum or mass on spring Bowling ball and softball pendulums with timer Friday, November 4 Chaos and Randomness Metronome Magnetic pendulum Chaotic double pendulum IBM Computer and large monitor Driven cart with pendulum, balls in troughs, aquarium Chaotic toy Ball on oscillating floor Firehose instability with compressed air Chaotic water bucket Dripping faucet Chaotic (inductor-diode) circuit Neon bulb flasher Monday, November 7 Universal Gravitation Cavendish model Solar system model Rubber ball Wednesday, November 9 Fluid Mechanics Hydrolic press Manometer Archimedes principle Bernoulli demo (pipe with flowing water) Magdeburg hemispheres Weight of air Airfoils Venturi tube Atomizer Curve Ball Frisbee Toilet paper roll and air jet Friday, November 11 Surface Tension (Barschall) See Barschall for demo list Monday, November 14 Wave Motion Multiple coupled pendula Rope anchored in wall Wave speed on a rope (index cards) Compressional wave demo (horizontal slinky) Torsional waves (horizontal and vertical) Wednesday, November 16 Sound Waves Classical and Modern Physics posters Sound-level meter Speed of sound Doppler demo Doppler cassette recording of train whistle Bell in vacuum Breathing He and SF6 Tuning fork Flame pipe Friday, November 18 Fractals String, stick, leaf, paper Overhead projector 35-mm slide projector IBM computer and large monitor Monday, November 21 Superposition and Standing Waves Interference of sound Driven wave on string with strobe lamp Open and closed organ pipes Beats with organ pipes and tuning forks Oscilloscope and microphone Sine and square waves, noise source (with speaker) Musical instruments Dog whistle Wednesday, November 23 Temperature and Ideal Gases Classical and Modern Physics posters Examples of thermometers Thermal expansion demos PVT surface of ideal gas Piston Monday, November 28 Catchup Lecture Demos to be determined Wednesday, November 30 Exam Review No demos Friday, December 2 Exam #3 No demos Monday, December 5 Heat and 1st Law of Thermodynamics Overhead projector Mechanical equivalence of heat Freezing by evaporation Thermal conductivity Heat convection (candle) Heat radiation (parabolic mirrors) Wednesday, December 7 Kinetic Theory Kinetic theory simulator (ball bearings) Kinetic theory demonstrator (Mercury tube) Variation of sound speed with temperature (?) Balloon Automobile engine model Friday, December 9 The Wonders of Physics (Fun Lecture) "The Wonders of Physics" poster on easel Liquid nitrogen - tygon, banana, nail, clear balloon and dish Leidenfrost effect (hotplate and eye dropper of water) Liquid nitrogen cannon Collapsing pop can in water tray Collapsing paint can Candle trough with dry ice Exploding soap bubbles (natural gas and bubble pipe) Exploding balloons (He and H2 with ignition stick) Needle through balloon (with scotch tape) Ziploc bag of water and pencil Neutral buoyancy balloon (He balloon with long heavy string) Hero's engine Model geyser Non-burning dollar bill (or handkerchief) Ethanol vapor explosion with hand-held Tesla coil Evacuated bell jar with balloon and marshmallows and/or shaving creme Liquid nitrogen cloud Tornado bottle Monday, December 12 Second Law of Thermodynamics Teaching evaluations Carnot cycle model Sterling engine Wednesday, December 14 Exam Review No demos