Faraday Lecture Partial Program of Demonstrations with Links to Additional Pictures/Videos and Explanations
This demonstration list is only a guide to selected possible demonstrations
in a given lecture. The additional materials are a work in progress.
Suggestions/comments are appreciated. Contact: Prof. Mark Croft croft@physics.rutgers.edu
In outside display case:
Jacob's ladder>; magnetic can-spinner; diffraction grating with white and atomic sources>;
soap bubble shapes; interference in soap film>
Matter and Motion: Things that move (along a line)
Inertia:
-Table cloth and dishes To see demo click here.
To see a discussion of this demo click here.
-Mass and acceleration-hammer/sponge/lead brick/hand/lead To see demo click here.
Force pus/pull- changes motion roller skates
Force/reaction force :
-Human Rocket -CO2 Fire Extinguisher (compare to balloon) [conservation of momentum]
To see web page of this demo click here.
To see video of this demo click here.
To see video of the balloon version of this demo click here.
-Rotation about Center of Mass CO2 Fire Extinguisher To see web page of this demo click here.
To see video of this demo click here.
Torque-rotation .wmv video
force direction (torque)/rotation .wmv video
-Note Cooling effect of Co2 liquid-gas transition
-Hornblower movie cannon recoil in movie .wmv video
1D Constant Acceleration Motion
const. acc. demo
bowlingball-incline demo
Projectile Motion (not typically in lecture)
-"Shoot the Monkey" demo To analysis of this demo click here.
For a deeper understanding of this demo and accelerating reference frames click here.
Energy -potential/kinetic/
-Pendulum To see this demo click here.>
-Bouncing balls - happy/sad balls
Things that rotate/turning forces:
-Bike Wheel -
-axis of rotation - right hand rule for direction of rotation To see video of this demo click here.
-force through and perpendicular to axis (torque) To see video of this demo click here.
-Rotating chair- Bike Wheel
- conservation of angular momentum - rotation torque reaction torque
-Rotating chair weights -steel pole - distance of mass from axis important
To see this demo click here rm low res video.
Distance of mass from axis, importance for rotation- .wmv video.
-Centripetal/Centrifugal Force -wine glass swung in circle To see this demo click here.>
To a .mpeg video of this demo click here.
To a .wmv video of this demo click here.
Fluid motion: Bernoulli effect To see a discussion of the Bernoulli effect click here.>
To see a video of the Bernoulli effect click here.
-Bernoulli ball - air plane wing To see this demo click here.>
-Raleigh Tube To see this demo click here.>
-Curve Ball
Vibrations, Waves and Sound:
-Vibrations
- spring & weight (potential vs kinetic energy)
-free vibrations
-wine glass
-driven vibrations-and resonance
-Traveling waves (slinky)- transverse and longitudinal waves
-Kobe earthquake video
Oscilliscope - picture of sound vibration
misc. surface shock waves in nature
- Comment on
traveling vibration in the air - sound waves
high frequency - high pitch low frequencu - low pitch
-Tuning Fork/Strobe
- Standing waves Flame tube.
-Singing rod/Rosin- overhead - emphasize nodes where expected
To see/hear this demo and see a discussion slide - click here.>
Singing rod .mpg video.
-Tacoma Narrows Bridge Collapse
-Shattering beaker with sound To see this demo click here(RealVideo).>
-Propagating smoke ring demo To see Dave's smoke ring cannon video click here.
Fluids - Gases - Pressure - Density - Temperature:
Density - mass/volume Fluids: To see a discussion of buoyancy click here.
-Buoyancy
-Beans & bowl (buoyancy) To see this demo click here.>
-Diet vs. Sugar coke add salt - sugar coke now less dense than more dense salt water
- Bowling Balls in water To see a .mpeg video of this demo click here.> To see .jpeg picture of this demo click here.>
- Hydrogen & He Balloons - explode H2 balloon To see this demo click here.>
Pressure:
- Vacumn pump-balloon/marshmallows To see this demo click here.>
- Bed of nails Pressure = force / area. To see this demo click here.>
-Crush Coke Can -Crush 55 gal. drum To see these demos click here.>
Temperature:
- Model of molecules moving randomly in a gas. To see a .mpeg video of this model click here.>
-Liquid Nitrogen -
-Shrink helium balloon - density connection To see this demo click here.>
To see a discussion of buoyancy click here.>
-LN2 cannon - To view a video of this demo click here.>
-Freeze: flower orange grape banana Plastic hand Hot dog baloney
To see this demo click here.>
Light:
-Spectrum with Prism (overhead projector)
Geometrical Optics
-Diffraction grating sheets
-Continuous Source (incandescent)- vary temperature - light color connection to temperature
-Atomic light sources (energy/lighr emission quantized)
To see this demo click here.>
-UV light & glow in the dark rocks/toys (high energy radiation)
fluorescent minerals>
fluorescent minerals#1>
fluorescent minerals#2>
fluorescent minerals#3>
video of time decay of mineral fluorescence>
-IR light focus to light matches
Electricity and Magnetism:
Electric charges and forces:
-Van de Graff Generator-
Pie plates - ping pong balls///plates- hair
[illustrate electric charges can both attract & repel]
florescent light - elecric energy converted to light To see this demo click here.>
Flowing current -
-Capacitor discharge To view this demo click here.>
-Burn resistor - cook hot dog
Magnetism - magnetic force on moving charges:
-Magnets- magnetic field lines-iron filings-load stone
-Force on charge moving through magnetic field - oscilloscope To see this demo click here.>
Circular orbit of e in B field
-Faraday motor [tube on incline with current and magnets] To view this demo's schematic click here.>
To view a video of this demo click here.>
Changing magnetic field - makes charges move in circle:
-Coils/meters/magnet: Faraday's Law
Eddy Currents:
-Inclined plane/magnet and disks.
For more schematics on this demo click here.>
To view demo video (solid disk in magnet) click here.>
To view demo video (slotted disk in magnet) click here.>
To view demo video (zig-zag cut disk in magnet) click here.>
-Magnet in tube
Moving charge creates magnetic field:
Electromagnet
Combinations of induced current and force on moving charge:
Ring flinger To see this demo click here.>
Can crusher To view demo video click here.>
To view the magnetically crushed can click here.>
Liquid N2 at end
Additional Material
On Bohr, U and Th>
On the WWII Pu-implosion bomb>
To see a short essay click on the link
On Aristotle, Newton and a 500 Pound Gorilla (Friction).>
To see a short essay click on the link
On the Bernoulli effect and the New Brunswick to New York train ride.>
To see a short essay click on the link
Galileo Galilei's Anagram.>