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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• 13:42, 14 April 2022 Physdemo talk contribs created page Ruchardt's Tube (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Tube.GIF}} This demonstration measures the ratio Cp/Cv, the ratio of specific heat at constant pressure to specific heat at constant volume. The demo consists of a tube in a rubber stopper which fits into a flask. A metal ball is dropped into the tube and oscillates. By measuring the period of the oscillations, the ratio can be determined by using the equation [missing image], where a is the radius of the ball a...")
• 13:37, 14 April 2022 Physdemo talk contribs created page Boyle's Law Apparatus (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Boyles_Law_Apparatus.gif}} A large pressure gauge is attatched to a cylinder containing hydraulic fluid. The level of the hydraulic fluid can be changed by adding compressed air into the chamber. Measurements of volume & pressure can be made to show PV = Constant. '''Location: ''' * Downstairs Labs")
• 13:37, 14 April 2022 Physdemo talk contribs created page Constant Pressure Thermometer (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Constant_P_Thermometer.gif}} A thin glass ball has a glass tube attatched to it. When the glass ball is grasped, the water level changes, causing a change in volume, keeping the pressure in the ball constant. '''Location: ''' * Shelf T-2")
• 13:36, 14 April 2022 Physdemo talk contribs created page Barometer (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Barometer.gif}} Demo description. '''Location: ''' * Part 1: Location 1 * Part 2: Location 2")
• 13:36, 14 April 2022 Physdemo talk contribs created page Manometer (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Manometer.gif}} A U-shaped glass tube has water in it. Presure differences are displayed by the water being at different levels relative to each side of the U-tube. '''Location: ''' * Shelf T-4")
• 13:35, 14 April 2022 Physdemo talk contribs created page Cold Boiling--water in a vacuum (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=}} A beaker of water is placed in a bell jar. When the jar is evacuated the water begins to boil. '''Location:'''")
• 13:34, 14 April 2022 Physdemo talk contribs created page PVT Surface--Gas (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=}} See PVT Surface --Water. This is identical, except it is for a gas. '''Location: ''' * Shelf E-1")
• 13:34, 14 April 2022 Physdemo talk contribs created page Bromine Tubes (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Bromine Tubes.gif}} Two tubes, one filled with bromine vapor and air, and the other with bromine gas and a small amount of liquid bromine. The tubes are cooled in a dry ice/alcohol bath. In the gas-air tube the bromine will solidify at the bottom of the tube. When it is removed from the cold bath, the gas will move up the tube until it is evenly dispersed. In the gas-liquid tube, the bromine will melt as the tub...")
• 13:33, 14 April 2022 Physdemo talk contribs created page Ice Melting Wire (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Ice Melting Wire.gif}} A wire with weights cuts through the block of ice. '''Location: ''' * Ice in the reading Room Fridge,or * Check with Chem Demos for full set-up")
• 13:32, 14 April 2022 Physdemo talk contribs created page Marshmallow in a Vacuum (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=}} Same as Balloon in a Vacuum but marshmallows are placed in the bell jar. The marshmallows grow as the jar is evacuated and collapse to a very small size when air is reintroduced into the bell jar. '''Location: ''' * Marshmallows: Glass Cabinet *")
• 13:32, 14 April 2022 Physdemo talk contribs created page Balloon in a Vacuum (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=}} A balloon with a small amount of air in it is placed in a bell jar connected to a vacuum pump. The balloon grows as the jar is evacuated. '''Location: ''' * Ballons: Drawer 30 * Bell jar & vacuum pump equipment: On a cart on the wall across from Shelf A")
• 13:31, 14 April 2022 Physdemo talk contribs created page Balloon in Liquid Nitrogen (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=}} A balloon is placed in liquid nitrogen. As it cools it collapses to a very small size. (Liquid air in the balloon is observable to students in the first rows.) The balloon is placed on the table and it dances around as it inflates due to the air heating up. Use caution when handling liquid nitrogen! Use gloves and goggles, and do NOT pour extra liquid nitrogen down the sink. '''Location:''' * Balloons: Draw...")
• 13:31, 14 April 2022 Physdemo talk contribs created page PVT Surface--Water (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=PVT-water.gif}} A three-dimensional PVT model of water. '''Location: ''' * Shelf E-1 *")
• 13:30, 14 April 2022 Physdemo talk contribs created page Constant Volume Thermometer (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Constant Volume Thermom.gif}} A hollow spherical ball has a pressure gauge mounted on it. Heating with boiling water and cooling with ice water causes pressure changes. Absolute zero can be extrapolated by plotting P vs. T. Location: Shelf F-4")
• 13:29, 14 April 2022 Physdemo talk contribs created page Heat Pump (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Heat_Pump.gif}} Another method of demonstrating adiabatic compression. When the pump is depressed, the temperature goes up. '''Location: ''' * Air pumps: Dr. 30 * Dial thermometer: Sh. F-4 * Loggerpro digital thermometer sensor: Sh. G-2")
• 13:25, 14 April 2022 Physdemo talk contribs created page Fire Syringe (Created page with "{{NewDemo|subject=Thermodynamics|topic=Ideal Gas Law|file1=Fire Syringe.gif}} A piston with rubber O-rings fits inside a glass tube. Cotton fibers are placed inside the glass tube. When the piston is struck sharply the adiabatic compression causes the cotton to ignite. Note: Be sure to clean and dry out the glass tube for best results. A very small amount of oil can be placed onto the O-rings to reduce friction but not too much!! '''Location: ''' * Drawer 51 *")
• 13:09, 14 April 2022 Physdemo talk contribs created page Film Loops--Therm. Prop. of Matt. (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=}} {| class="wikitable" |- ! Film Loop !! Location |- |Boiling Point and Pressure||32 |- |Boyle's Law||34 |- |Conservation of Mass||29 |- |Critical Temperature||27 |- |Crystal Growth||35 |- |Drops and Splashes||33 |- |Finding Absolute Zero||31 |- |Gas Diffusion Rates||30 |- |Random Walk and Brownian Motion||28 |- |Thermal Expansion of Gases||30.5 |- |Temperature, Energy and Thermal Equilibrium||12...")
• 13:02, 14 April 2022 Physdemo talk contribs created page Green House Effect (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Green_House_Effect.gif}} A box consisting of two chambers separated by a thermal insulator. One chamber contains a beaker filled with colored water. A bright light shined above heats up the box. Chamber with the thermal mass (water) heats up slower than the other chamber. Likewise, it cools down slower than the other chamber when the heat source is removed. '''Location: ''' * Shelf F-2")
• 13:00, 14 April 2022 Physdemo talk contribs moved page Peltier App. -- super cooled water to Peltier Apparatus
• 13:00, 14 April 2022 Physdemo talk contribs created page Peltier App. -- super cooled water (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Peltier Apparatus.gif}} The Peltier Apparatus, a solid state device also known as a frigidster, gets hot on one side and cool on the other when a current is run through it. The Peltier Apparatus is used to cool down a small sample of water placed in a test tube. A thermometer is submerged in the water. Power is applied and the temperature decreases. The temperature will dip below 0 degrees Celcius...")
• 12:59, 14 April 2022 Physdemo talk contribs created page Triple Point (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Triple_Point.gif}} A small amount of water sits on a watch glass. The watch glass is placed on top of a specially cut pyrex beaker that contains a small amount of sulfuric acid to absorb water vapor. The set-up is placed inside a plexiglass vacuum chamber. The entire apparatus is placed on an overhead. When the vacuum pump is activated, the water boils. The boiling continues for a few minutes unti...")
• 12:59, 14 April 2022 Physdemo talk contribs created page Relative Humidity App. (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=Relativity_Humidity_App.gif}} Dampen this thermometer, then spin the apparatus a number of times. Read the different temps and compare to the humidity chart. '''Location: ''' * Drawer 60")
• 12:58, 14 April 2022 Physdemo talk contribs created page Frozen Rose, Rubber Tubing (Created page with "{{NewDemo|subject=Thermodynamics|topic=Thermal Properties of Matter|file1=}} Fun & dramatic changes to objects by placing them in liquid nitrogen. A rose shatters like glass. A rubber tubing shatters. When the tubing is placed in the liquid Nitrogen, a fountain of liqid nitrogen flows out the top. Please handle liquid nitrogen safely, using goggles and gloves. Do NOT dispose of liquid nitrogen in sinks. '''Location: ''' * Liquid Nitrogen Container: Shelf E-2 * Rubber t...")
• 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:''' *")

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