Demos Grad Students can Check Out

These demos can be checked out by graduate students for use in the Physics building.

Atwood machine: Unbalanced weights on a pulley accelerate slowly.

Cork float accelerometer: Cork and water in sealed flask.

Swinging mass M lifts mass 2M

A ball swung on a string held by a sleeve.

Chain lariat with hand drill or electric rotator

Ball on string mounts on blackboard and pivots on lower rod.

Equal path lengths ball race.

Blocks, with various surfaces slide on an inclined plane.

Weight on a vertical spring with markers on stand

Block pulled horizontally by a spring.

Card snapped from under a weight by a leaf spring.

A+20+5 Tablecloth yanked out from under dishes.

A+20+10 Breaking thread above and below weight.

A+25+0 Two disks, one weighted in center and other on rim, roll down ramp

A+25+15 Rotational Inertia Wands

A+30+60 Spinning Bicycle Wheel Stays Upright

A+30+20 Maxwell's top, has adjustable center of gravity

A+35+18 Inelastic collisions: Another ballistic pendulum.

A+35+5 Elastic collisions: Seven steel balls roll on a wooden track.

A+50+0 Dropped and shot balls hit bench simultaneousy

A+50+20 Rocket is filled with water and compressed air and launched vertically.

A+55+0 "Sweet Spot": Meterstick pivot point changes with point struck.

A+55+5 Rolling spool: String on spool is pulled at various angles.

A+55+10 Cycloid disk draws path on chalkboard.

A+60+25 Disk (weighted off-center) rolls up inclined plane.

A+60+32 Center of gravity (toy) objects.

A+60+37 Rotation about the center of mass: Object to throw.

A+60+45 Center of mass of a baseball bat

A+60+55 Stacking Blocks Extend Over Base

A+70+20 Rope with slug(unit of mass) in center is lifted from ends.

B+5+0 Chaotic pendulum.

B+10+0 Mass on a spring.

B+10+1 Simple pendulum: Ball on a string.

B+10+60 Tuning forks, various.

B+15+5 Wilberforce pendulum: Oscillates between rotation and up-down.

B+15+15 Two balls hung on the same string, one in middle, one at the end.

B+20+15 One tuning fork with tuned cavity, drives another.

B+35+5 Acoustic interference with Quincke (trombone) tube and son alert.

B+35+25 Beats with two beer bottles blown manually.

B+45+32 Twirling Tube

B+45+40 Caruga horn: Varigated tube to blow through

B+50+30 Set of ten suspended metal rods struck with a wooden mallet.

B+50+35 Xylophone.

C+10+0 Carnot cycle models: Piston/cylinder, PVT surface.

C+20+5 Crooke's radiometer with flashlight, arc lamp or IR source.

C+25+4 Airzooka

C+25+50 A water vortex in two soda bottles joined vertically.

C+27+5 Various bubble frames.

C+30+35 Cartesian divers: Pressure on cap sends divers sinking.

C+30+62 Mat held down by atmospheric pressure.

C+50+5 Black balls and white balls in a box are shaken.

C+55+60 Equipartition of Energy: Different mass balls bounce out at
different times.

C+70+47 Dippy bird: Large glass bird containing ether oscillates.

C+70+55 Fire syringe: paper is ignited in a cylinder with a piston.

C+80+10 P.V.T. surface model for water.

C+80+15 P.V.T. surface model for carbon dioxide.

D+0+0 Attraction between horizontal plates of a charged capacitor.

D+0+4 Parallel plate capacitor with dielectric materials and electroscope.

D+0+6 Capacitor doorbell driven by Van de Graaff generator.

D+10+4 Pith balls on thread, with positive and negative charged rods.

D+10+6 Attraction and repulsion of charged styrofoam balls.

D+10+12 Charge resides on the outside of a conductor.

D+10+13 Faraday cage: blocks signal from portable radio

D+10+16 Separation of charge using electrical tape and an electroscope.

D+10+18 Electrophorous: Cat fur on teflon, acetate on lucite.

D+10+20 Van de Graaff generator.

D+10+24 Electrostatic pinwheel:Van de Graaff makes pinwheel spin.

D+10+30 Kelvin water drop electrostatic charge generator.

D+15+1 Oscillating magnets in coupled coils

D+15+10 Hand-cranked AC alternator powers 120 volt lamp.

D+15+11 Hand-cranked DC generator powers 120 volt lamp.

D+15+14 Eddy currents: Copper disk rotates over a spinning bar magnet.

D+15+16 Damped pendulum: Swinging metal disks damped in magnetic field.

D+15+20 Jumping rings: High current AC coil causes rings to jump.
(no LN2 for undergrads)

D+15+26 Eddy currents:Small magnet slowly drops between aluminum rails.

D+15+28 Eddy currents: Neodymium Magnet Drop.

D+15+45 Magnet inserted and withdrawn from copper ring causes ring to swing=
(no LN2 for undergrads)

D+30+6 Iron filings and permanent magnets to show field on an OHP.
(Plexiglass only as transparent surface)

D+30+30 Force on current carrying wire in a magnetic field

D+35+0 Wobbly bar: Magnets in frame balanced by repulsive forces.

D+35+9 Para and diamagnetic materials in magnetic field with OHP.

D+35+15 Mass Driver

D+35+20 Curie Temperature

D+55+18 Resistor analog: Marbles cascading down pin board.

D+60+8 Commercial solar cell spins propeller using small arc lamp.

D+70+6 Thermoelectric fan: Fan runs off of hot and cold water.
Electric tea pot as source of energy

D+70+8 Peltier junction: Forward current freezes water drop, reverse boils.
Hand generator only

D+75+3 Secondary used for small Jacob's ladder.

D+75+6 Automobile coil makes a spark.

E+10+45 Limit of resolution: Two small lamps on adjustable slide.

E+10+55 Laser beam diffraction off object and being reassembled

E+5+0 Standard color blindness tests and box of colored yarns.

E+5+10 Newton's color disk: When rotated,appears white.

E+5+25 Cyan, magenta, and yellow filters mix subtractively on OHP.

E+5+35 Rotating disk with black and white lines makes color illusion.

E+15+20 Diffraction patterns of various gratings using He-Ne laser.

E+15+25 Hand-held gratings for class to view Hg, Ne discharge tubes.

E+20+5 Transmission hologram viewed with laser light.

E+20+6 Reflection hologram viewed with white light.

E+25+20 Red/green/blue line source viewed with double slit paddles.

E+25+25 Thin film interference with optical flats and sodium lamp.

E+25+42 Oil film interference on water.

E+25+45 Thin film interference with mercury light on mica sheets.

E+25+50 Laser projected through Fabry-Perot interferometer shows

E+30+15 Real images: Lighted arrow image and various lenses.

E+30+17 Real images: Lighted =E2=80=98F-object=E2=80=99 and an astygmatic l=

E+30+18 Real images: Lighted =E2=80=98F-object=E2=80=99 and a cylindrical l=

E+30+20 Cylindrical lens of lucite with words "DIOXIDE GLASS".

E+30+25 Fresnel lenses to show.

E+40+15 Hand held plane mirror and right angle mirror.

E+40+20 Variable angle mirror assembly with candle.

E+40+21 Barbershop mirrors:Parallel mirrors with light bulb.

E+40+40 Clam shell mirrors: Floating coin illusion.

E+45+10 Malus experiment: Polarization by reflection off glass surface.

E+45+30 Plaster models of positive and biaxial crystals.

E+45+45 Model of a calcite crystal.

E+45+60 Polarized light and stressed lucite on an OHP.

E+50+5 Four-prisms, same index of refraction, different angles, using laser=

E+50+10 Eight-prisms, different index of refraction, same angle, using lase=

E+55+10 Image formed by a pinhole using three light bulbs in a box.

E+50+35 Binoculars and Porro prisms to show.

E+60+2 Indices of Refraction: glass in glycerin and phantom crystals.

E+60+5 Total internal reflection/critical angle: Nakamura water tank.

E+60+15 Light pipes and fiber optic flashlight.

E+65+5 Crooke's radiometer with flashlight or IR source.

F+15+0 UV light hits charged zinc plate and discharges electroscope.\\

F+15+20 Commercial solar cell spins propeller using halogen light source.

F+15+35 Recording modulates laser beam which hits solar cell and amplifier.

F+20+0 "Plum pudding": Corks with magnets float in bowl/solenoid on OHP.

F+20+10 Model of the nucleus: Steel balls in plastic dish on OHP.

F+95+0 Working helium-neon laser in transparent housing.

G+5+5 Earth, Sun, and Mars model.

G+5+10 Solar system model.

G+5+15 Gravitational lens model.

G+55+0 Revolving window illusion.

G+55+5 Rotating disk and strobe demonstration.

G+55+10 Optical illusion posters.

G+60+20 Set of color blindness cards.