New Demonstrations
Here you will find brief descriptions and links to new demonstrations or updates to current demonstrations that may be useful in upcoming lectures. Check back often asnewdemonstrations will be added here as they are completed. The list will be in order of newest demonstration (or update) to oldest.
Category |
Topic |
Demonstration ID, Name and Link |
Description |
2 | Buoyancy | 2.40.62 - Density Spheres |
Two spheres with the same mass but different volumes placed in water. |
8 | Stellar Astronomy | 8B40.10 - Gravitational Lensing |
Wine glass sliding over a dot showing a representation of gravitational lensing |
6 | Polarization | 6H30.30 - Polarization Sugar Water Tube |
A tube of sugar water is illuminated by a white light source with a linear polarizer on each side of the tube. Rotating one of the polarizers will cause different colors to be projected out the oposite side of the tube and the "rainbow" of colors travel up and down the tube. |
5 | Magnetic Fields | 5H10.05 - Compass Array and Magnet |
An array of compasses align with the magnetic field of a bar magnet |
3 | Resonance | 3B70.10 - Sympathetic Vibrations: Resonance Ping Pong |
Hitting a tuning fork on a resonance box will cause a similar tuning fork on a second resonance box to vibrate causing a ping pong ball to bounce. |
3 | Resonance | 3D40.50 - Singing wine glass | Rub your finger on the rim of a wine glass partially filled with water to cause the glass to "sing" |
1 | Rotational Dynamics/Energy | 1Q60.25 - Euler's Disk |
Spin a metal disk on a low friction surface |
3 | Springs and Oscillators | 3A20.15 - 5 Springs with Different Spring Constants |
Five springs with the same unstretched length but different spring constants. Place 1Kg mass on each to see the effect of different spring constants on the stretched length and oscillation rates. |
5 | Induced Currents | 5K10.26 - Induced Current Flash Bulb. | Using a coil of wire ignite camera flash bulbs of varying brightnesses. |
1 | Work and Energy | 1M30.25 - Two Ramp Ball Race | Race two ball bearings across a table via two ramps with different slopes but same starting height. |
1 | Action and Reaction | 1H10.02 - Horizontal Spring scale |
Lay a spring scale horizontally with a 1Kg mass hanging from each end - what does the scale read? |
4 | Phase Changes: Liquid-Solid | 4C20.01 - Latent Heat of Fusion |
Super-cooled sodium acetate trihydrate pouches crystalize when agitated forming a solid and releasing heat as they freeze. |
5 | Magnetic Potential Energy | 5H20.20 - Magnetic Potential Energy |
Launch a ball bearing off a u-shaped ramp seemingly violating conservation of energy. Where did the extra energy come from? |
6 | Reflection | Total Internal Reflection with Diffraction Grating |
Total internal reflection using a diffraction grating |
6 | Reflection | Total internal reflection |
Total internal reflection |
6 | Refraction | 6A42.12 - Dual Beam Refraction |
Demonstration showing why obects under water are not where they appear from a external viewpoint. |
6 | Light and Color | 6F10.14 - "Digital Light" and RGB Illumination |
Use tunable RGB light sources to shed light on our perception of the color of an object. |
1 | Conservation of Energy | 1M30.43 - Conservation of Energy - Heat Generated in Collision |
The conservation and transfer of energy is demonstrated by clashing two spheres together separated by a sheet of paper. |
5 | Electromagnetic Induction | 5G50.51 - Levitating pucks |
Semiconducing pucks can be suspended above a magnetic track and will travel around the track when pushed. |
5 | Electromagnetic Induction | 5G50.50 - Levitating Magnet |
A large (2") or medium (1") NIB magnet is held in suspension above a superconducting disc cooled with liquid nitrogen. |
1 | Newton's Second Law | 1G10.30 - Weight of Mass |
Updated variants of the previous 'Weight of Mass' Demonstration |
1 | Newton's First Law | 1F20.09 - Inertia Bolwing Ball |
Gently pull on the string attached to the bowling you can lift the ball off the table into the air. Pull quickly and the string breaks before you are able to lift the ball off the table. |
1 | Rotational Dynamics | 1Q30.05 - Holding a Rotating Wheel |
One can feel the effects of changing the rotational axis of a rotating wheel held out at arms length. This wheel is substantially lighter than the weighted wheel. |
1 | Motion in Two Dimensions | 1D.10.45 - Unmounted Wheel |
A wheel to show motion in two dimensions which can be easily handheld or rolled on a table.
|
2 | Fluids | 2B40.16 - Buoyant Force |
Three black blocks of equal volume and different mass (wood, aluminium, steel) are placed in water. Which experiences a different buoyant force? Update: The same experiment with Coke vs. Diet coke. |
6 | Optics | 6F10.11 - Color Projection and Creating White Light |
Three slide projectors project GRB or CYM light to create other colors or white light. |
5 | Electromagnetic Induction | 5K10.28 - Inducing Current in Coils | Dropping a magnet throught two closed coils to demonstrate induced current using a wire and LED. |
5 | Electrostatics | 5B10.77 - Visualizing Point Charge E-Field Lines and Gaussian Sphere | Visualization of the field lines from a point charge. The support sphere can aid in visualizing a spherical Gaussian surface. |
4 | Entropy and the Second Law | 4F30.10 - Stirling Engine | Two variants of Striling Engines. |
5 | Electromagnetic Induction | 5K40.17 Solar/Light Powered Motor | Electric motor that runs on electricity generated by light. |
5 | Electromagnetic Induction | 5K10.05 Wireless Music Coil | Play music wirelessly through a tape player with a small coil from a MP3 or mobile device (with a 3.5mm headphone jack). |
5 | Electromagnetic Radiation | 5N20.40 Tesla Coil | New tesla coil that can have the output frequency manually adjusted or to play music. Has 6-8 inch arcs. |
3 | Instruments | 3D40.30 Chladni Plate | New Chladni Plate which can be connected to wired and wirelessly. |
2 | Fluids | 2C10.05 Air as a Fluid | An “air-gun” can demonstrate air moving as a fluid and knock over a stack of cans from a large distance. |
4 | Change of State | 4C20.05 Liquid Metal (Solid to Liquid) | Create liquid metal at low temperture with a Gallium nugget. |