Combined display of all available logs of UO Physics Demonstration Catalog. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

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• 12:58, 14 April 2022 Physdemo talk contribs created page Thermal Linear Expansion (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Thermal Expansion.gif}} A rod is fixed on one end and the other is placed on a rotating needle. The bar is heated with a bunsen burner and the needle will move slowly. After the bar is heated, it can be cooled rapidly by pouring cold water along the rod which causes the needleto move quickly to its original reading. '''Location: ''' * Shelf E-4")
• 12:57, 14 April 2022 Physdemo talk contribs created page Ice Bomb (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Ice Bomb.gif}} A cast iron vessel is filled with water and sealed with a screw plug. The vessel is placed in a dry ice + alcohol solution. When the water freezes inside the vessel it causes the vessel to "explode." (Note: Place vessel behind a blast shield or inside t he pressure cooker pot. '''Location: ''' * Shelf E-4")
• 12:56, 14 April 2022 Physdemo talk contribs created page Nitinol Wire (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Nitinol_Wire.gif}} A piece of wire that, when heated, straightens out but when cooled retains its original shape. Can also be "trained" by shaping it within a flame to return to a shape other than straight. '''Location: ''' * Drawer 53 *")
• 12:55, 14 April 2022 Physdemo talk contribs created page Bimetallic Strip (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Bimetallic Strip.gif}} The strip consists of two different strips of metal sandwiched together. When heated, the metals expand at different rates, so the strip bends. '''Location: ''' * Drawer 52")
• 12:53, 14 April 2022 Physdemo talk contribs created page Ball and Ring (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Ball and Ring.gif}} When both pieces are cool, the ball will not fit through the ring. When the ring is heated, it expands, and the ball will fit through it. Location: Drawer 52")
• 12:49, 14 April 2022 Physdemo talk contribs moved page Tyndall's Bar Breaker to Tyndall's Ball Breaker (lol)
• 12:47, 14 April 2022 Physdemo talk contribs created page Tyndall's Bar Breaker (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Tyndalls Bar Breaker.gif}} The rod in the middle of the apparatus is heated, causing it to expand. The nut at one end is tightened during the heating, so it is tightly fastened in its expanded state. When removed from the flame, the rod contracts as it cools, eventually breaking the iron bar located at the opposite end of the rod. '''Location: ''' * Drawer 52")
• 12:45, 14 April 2022 Physdemo talk contribs created page Alcohol Heat Fountain (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Alcohol Fountain.jpeg}} When the fountain is held in the palm of the hand, it is warmer at the bottom, causing a pressure difference, so the alcohol/freon creeps up to the top. '''Location:''' * Drawer 56")
• 12:44, 14 April 2022 Physdemo talk contribs created page Drinking Bird (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Drinking Bird.jpeg}} The bird's head is dampened, making it cooler than the base. This causes the fluid to creep up the neck to the area of lower pressure. When the center of gravity shifts, the bird tips, then the fluid runs back down into the bottom body and the bird returns to upright position. And so on. '''Location:''' * Drawer 56")
• 12:43, 14 April 2022 Physdemo talk contribs created page Thermicon Card (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Thermicon Cards.JPG}} The card is filled with liquid crystals that change color depending on temperature. Various temperature ranges are available. '''Location: ''' * Drawer 53")
• 12:40, 14 April 2022 Physdemo talk contribs created page File:X v a vs Time SHM.mp4
• 12:40, 14 April 2022 Physdemo talk contribs uploaded File:X v a vs Time SHM.mp4
• 12:40, 14 April 2022 Physdemo talk contribs created page Simple Harmonic Motion Video (Created page with "{{Video|X v a vs Time SHM.mp4}}") Tag: Visual edit: Switched
• 12:39, 14 April 2022 Physdemo talk contribs created page File:Resonance Pipe Lab Speed of Sound.mp4
• 12:39, 14 April 2022 Physdemo talk contribs uploaded File:Resonance Pipe Lab Speed of Sound.mp4
• 12:38, 14 April 2022 Physdemo talk contribs created page Speed of Sound Video (Created page with "{{Video|Resonance Pie Lab Speed of Sound.mp4}}") Tag: Visual edit: Switched
• 12:38, 14 April 2022 Physdemo talk contribs created page Sound Interference Video (Created page with "{{Video|Sound Interference.mp4}}") Tag: Visual edit: Switched
• 12:36, 14 April 2022 Physdemo talk contribs created page File:Sound Interference.mp4
• 12:36, 14 April 2022 Physdemo talk contribs uploaded File:Sound Interference.mp4
• 12:35, 14 April 2022 Physdemo talk contribs created page Pipe Boundaries Video (Created page with "{{Video|PIPE BOUNDARIES.mp4}}") Tag: Visual edit: Switched
• 12:35, 14 April 2022 Physdemo talk contribs created page File:PIPE BOUNDARIES.mp4
• 12:35, 14 April 2022 Physdemo talk contribs uploaded File:PIPE BOUNDARIES.mp4
• 12:34, 14 April 2022 Physdemo talk contribs created page Hooke's Law Video (Created page with "{{Video|Hookes Law.mp4}}") Tag: Visual edit: Switched
• 12:32, 14 April 2022 Physdemo talk contribs created page File:Hookes Law.mp4
• 12:32, 14 April 2022 Physdemo talk contribs uploaded File:Hookes Law.mp4
• 12:28, 14 April 2022 Physdemo talk contribs created page Feedback (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=}} A plastic cub with an attatched grooved plastic string. When you run your fingernail along the grooves, the cup says, "Have a nice day." '''Location:''' *")
• 12:26, 14 April 2022 Physdemo talk contribs created page Talking Cup (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=}} A plastic cub with an attached grooved plastic string. When you run your fingernail along the grooves, the cup says, "Have a nice day." '''Location:''' *")
• 12:25, 14 April 2022 Physdemo talk contribs created page Whistle Tube (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Whistle_Tube.gif}} '''Location:''' *")
• 12:24, 14 April 2022 Physdemo talk contribs created page Savart's Toothed Wheels (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=}} '''Location:''' * Dr. 33")
• 12:24, 14 April 2022 Physdemo talk contribs created page Reverb Cups (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Reverb_Cup.gif}} Similar to the classic cup and string telephone except that this uses a spring. Shake the cup to send large waves down the spring and create sounds similar to whale songs or star trek laser blasts. Speak into the cup and the spring will create an echoing effect. A similar device is called a reverb when used with electronic instruments -- esp. guitars. '''Location: ''' * Shelf D-2")
• 12:23, 14 April 2022 Physdemo talk contribs created page Sonometer (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=sonometer_01.jpg|file2=sonometer_02.jpg}} A sonometer. Use the pointy wood blocks to change the note; there are markings on the top of the sonometer to indicate octaves, etc. The tension in the plastic string can be adjusted using weights. '''Location: ''' * Sonometer and wood blocks: Shelf E-0 * Weights: Shelf A-4")
• 12:22, 14 April 2022 Physdemo talk contribs created page Hoot Tubes (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Hoot_Tubes.gif}} A metal tube has a metal screen placed inside it a short distance from one end. Place the tube over a burner to heat up the screen and then remove the tube from the burner. With the tube in a vertical position the cooling screen sets up a sound vibration. The length of the tube picks out the resonating wave length. Turn the tube horizontally and the sound stops. The largest, ~5 ft. x 6 in., has been dubbed "The Vo...")
• 12:22, 14 April 2022 Physdemo talk contribs created page Musical Instruments (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Musical_Instruments.gif}} A variety of musical instruments. '''Location: ''' * Guitar: side of Shelf F * Whistles/flutes: Dr. 36 * Casio keyboard: Sh. D-1 * Resonance tubes: Sh. D-2 * Xylophone & mallets: Sh. D-4")
• 12:21, 14 April 2022 Physdemo talk contribs created page Tuning Forks--Matched Pair (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Tuning Forks Matched Pair.gif}} Both forks sound at the same pitch. When the open ends of the boxes are set together, one fork can be started and it will drive the other. '''Location: ''' * Shelf D-4")
• 12:20, 14 April 2022 Physdemo talk contribs created page Jar Whistle (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Jar_Whistle.gif}} The classic blowing into a bottle to make it whistle. With the addition tubes of different lengths the tone can be changed. '''Location: ''' * Shelf D-4")
• 11:35, 13 April 2022 Physdemo talk contribs created page Singing Rod (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Singing Rod.gif}} With practice this aluminum rod can be set resonating by pulling it between thumb and finger. It must be held at a nodal point. If you're really good you can show the differences of the primary and secondary tones. '''Location:''' * Next to Shelf E")
• 11:25, 13 April 2022 Stanmick talk contribs created page File:Beat Frequency pic.png
• 11:25, 13 April 2022 Stanmick talk contribs uploaded File:Beat Frequency pic.png
• 11:22, 13 April 2022 Physdemo talk contribs changed group membership for Stanmick from (none) to administrator
• 11:20, 13 April 2022 User account Stanmick talk contribs was created
• 11:17, 13 April 2022 Physdemo talk contribs created page Longitudinal Wave Machine (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=Longitudinal Wave Machine.gif}}")
• 10:48, 13 April 2022 Physdemo talk contribs created page Interference--Beats (Added Demo description) Tag: Visual edit
• 10:19, 13 April 2022 Physdemo talk contribs created page Wine glass shatters (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=}} Great demonstration for resonance. A wine glass is setup in an enclosure. The resonant frequency of the glass is first found by placing a Ping-Pong ball in the glass and adjusting the signal generator to find the frequency that causes the most energetic vibration of the Ping-Pong ball. The glass is then set in front of the horn driver. A loud pulse of sound will cause the glass to break. '''Location:''' * Enclosure with Horn D...")
• 10:17, 13 April 2022 Physdemo talk contribs created page Siren Disk (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Siren_Disk.gif}} '''Location: ''' * Shelf H-2") Tag: Visual edit: Switched
• 10:16, 13 April 2022 Physdemo talk contribs created page Bell in a Jar (Created page with "{{NewDemo|subject=OWS|topic=Sound|file1=Bell in a Jar.gif}} The classic demonstration of sound's dependence upon a medium. Set the door bell ringing and then evacuate the bell jar. As the air leaves the sound stops. '''Location: ''' * Shelf T-1")
• 10:13, 13 April 2022 Physdemo talk contribs created page Wave Pendulum (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=WavePendulum.jpg}} Precisely calculated lengths show oscillations and modes. Most easily started with a large board or by gently tipping the apparatus, then releasing. '''Location: ''' * Wave Pendulum: Project Room * Boards: I-right")
• 10:11, 13 April 2022 Physdemo talk contribs created page Open and Closed Ended Reflection (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=Open and Closed Ended Refle.gif}} Hitting the rubber cork with the mallet produces a sound pulse which will bounce back and forth in the tube. Set up Super Sound to be triggered by the pulse. The pulse will be inverted at an open end and not inverted at a closed end. If the cork is in the tube (one end open one end closed) each successive pulse to hit the mic will be inverted, if the cork is held just outside the tube (both ends o...")
• 10:10, 13 April 2022 Physdemo talk contribs created page Standing Wave--Flame Tube (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=Standing Wave--Flame Tube.gif}} A long tube with lots of holes along the top which are lit. When the end is driven by a signal generator, a standing wave can bee seen in the height of the flames. CAUTION: Do not leave the gas on for more than a few minutes! '''Location: ''' * Next to Shelf F")
• 10:09, 13 April 2022 Physdemo talk contribs created page Rubber Rope (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=Rubber_Rope.gif}} A rubber hose is tied to a wall and set oscillating by a variable speed motor. A strobe light may work well to increase the visibility of the wave. '''Location: ''' * Sh. C-4: motor * Dr. 45 or Dr. 55: rubber hose")
• 10:09, 13 April 2022 Physdemo talk contribs created page Ripple Tank (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=}} Lots of ripple tank demos. Most easily seen on Film Loops, but an actual ripple tank can be set up. '''Location: ''' *")

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