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The Focal Length of a Concave Mirror Posted by: c4science
Video duration: 204 seconds We found an approximate value for the focal length of a concave mirror. Then we used a raybox, cross hairs and screen to get a more precise value. Related: box, cabinteely, certificate, community, concave, experiment, focal, leaving, length, mandatory, mirror, physics, ray, school Display Video Comments | Hide Video Comments | Add Comment |
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Electromagnetic Induction: Demonstrations and Definition Posted by: c4science
Video duration: 170 seconds Three short Leaving Certificate Physics experiments using a coil and (a)a permanent magnet (b)a d.c. electromagnet (c) an a.c. electromagnet Related: cabinteely, certificate, community, electromagnetic, faradays, induction, law, leaving, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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Measuring the speed of sound by resonance Posted by: c4science
Video duration: 194 seconds We used a tuning fork, resonance tube and water to find the speed of sound in air. A Leaving Certificate Physics mandatory experiment. Related: cabinteely, certificate, community, experiments, leaving, mandatory, physics, resonance, school, sound, speed Display Video Comments | Hide Video Comments | Add Comment |
![Verifying Boyle\](http://img.youtube.com/vi/n1vUjwXE3SU/2.jpg "Verifying Boyle\") |
Verifying Boyle's Law Posted by: c4science
Video duration: 185 seconds A Leaving Certificate Physics mandatory experiment. We measured the volume and pressure of a fixed mass of gas in a syringe and graphed pressure against one over volume. Related: boyles, boyles, cabinteely, certificate, community, datalogger, experiment, law, leaving, mandatory, physics, pressure, school Display Video Comments | Hide Video Comments | Add Comment |
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Demonstrating Conservation of Momentum with a Ticker Timer Posted by: c4science
Video duration: 207 seconds A Leaving Certificate Physics Mandatory Experiment. We used a ticker timer, paper tape, a runway and two trolleys, one fitted with a cork, one with a pin, to demonstrate the principle of conservation of momentum (PCOM). Related: cabinteely, certificate, community, conservation, experiment, leaving, mandatory, momentum, of, physics, school, ticker, timer Display Video Comments | Hide Video Comments | Add Comment |
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To show a capacitor stores energy Posted by: c4science
Video duration: 118 seconds We used a capacitor, battery, diode, lamp and two switches. First we charged the capacitor, then disconnected the battery. Finally, we connected a lamp across the capacitor and a pulse of light was seen. Related: cabinteely, capacitor, certificate, community, energy, leaving, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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Measuring the Wavelength of Monochromatic Light Posted by: c4science
Video duration: 312 seconds We used a spectrometer and a diffraction grating to measure the wavelength of monochromatic light from a sodium lamp. Related: cabinteely, certificate, community, experiment, leaving, light, mandatory, monochromatic, physics, school, spectrometer, wavelength Display Video Comments | Hide Video Comments | Add Comment |
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Measuring the SLV of water Posted by: c4science
Video duration: 214 seconds A Leaving Certificate Physics mandatory experiment to measure the specific latent heat of vaporisation of water. A steam trap is used to keep the steam dry, i.e. free of liquid droplets. Related: cabinteely, certificate, community, experiment, heat, latent, leaving, mandatory, of, physics, school, specific, vaporisation Display Video Comments | Hide Video Comments | Add Comment |
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To Measure the SLF of Ice Posted by: c4science
Video duration: 345 seconds A Leaving Certificate Physics Mandatory Experiment. We used used crushed ice mixed with warm water in a warm insulated calorimeter to measure the specific latent heat of fusion of ice. Related: cabinteely, certificate, community, experiments, fusion, heat, ice, latent, leaving, mandatory, of, physics, school, specific Display Video Comments | Hide Video Comments | Add Comment |
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Demonstrating Self Induction Posted by: c4science
Video duration: 103 seconds A 15 V d.c. source is applied to a 20 000 turn coil. Switching on or off the source causes a self-induced e.m.f. greater than 90 V. This is enough to light a miniature neon lamp. Related: cabinteely, certificate, coil, community, electricity, induction, lamp, leaving, magnetism, neon, physics, school, self Display Video Comments | Hide Video Comments | Add Comment |
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The Ball and Ring Experiment Posted by: c4science
Video duration: 116 seconds To show that solids expand when heated and contract when cooled Related: ball, cabinteely, certificate, community, contract, cooled, expand, heated, junior, ring, school, science, solids Display Video Comments | Hide Video Comments | Add Comment |
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To Calibrate a Thermometer Posted by: c4science
Video duration: 146 seconds A Leaving Certificate Physics Mandatory Experiment. We calibrated a thermistor as a thermometer using a mercury thermometer as a standard. Related: cabinteely, calibrate, certificate, community, experiment, leaving, mandatory, physics, school, thermometer Display Video Comments | Hide Video Comments | Add Comment |
![Oersted\](http://img.youtube.com/vi/9XDZXvPkXCE/2.jpg "Oersted\") |
Oersted's Experiment Posted by: c4science
Video duration: 98 seconds Oersted's famous experiment of 1820 showed that an electric current has a magnetic effect. We used a plotting compass, batteries and wire to relive the moment. Related: cabinteely, certificate, community, current, effect, electricity, leaving, magnetic, magnetism, oersted, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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Measuring a Constant Velocity with a Ticker Timer Posted by: c4science
Video duration: 237 seconds A 50 Hz ticker timer produces 50 dots each second. We tilted a runway to compensate for friction. When the dots on the ticker tape were equally spaced, we measured the trolley's constant velocity. Related: cabinteely, certificate, community, constant, leaving, mechanics, physics, runway, school, ticker, timer, trolley, velocity Display Video Comments | Hide Video Comments | Add Comment |
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Sound Cannot Travel In A Vacuum Posted by: c4science
Video duration: 77 seconds A Leaving Certificate Physics Demonstration. In space, no one can hear you scream ... Related: cabinteely, certificate, community, leaving, physics, school, sound, vacuum Display Video Comments | Hide Video Comments | Add Comment |
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Measuring g with a free-fall apparatus Posted by: c4science
Video duration: 156 seconds We dropped a ball-bearing from a free-fall apparatus. This automatically started and stopped a clock. Graphing the distance fallen against the square of the time enabled us to find a value for g, the acceleration due to gravity. Related: cabinteely, certificate, community, experiment, free-fall, gravity, leaving, mandatory, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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To Demonstrate Atmospheric Pressure Posted by: c4science
Video duration: 46 seconds A sheet of newspaper is placed on a piece of wood. When hit with a hammer, the wood breaks but the paper doesn't tear. The atmosphere presses down hard enough to hold the paper in place. Related: atmospheric, cabinteely, certificate, community, junior, pressure, school, science Display Video Comments | Hide Video Comments | Add Comment |
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The Refractive Index of Water Posted by: c4science
Video duration: 141 seconds To Measure the Refractive Index of Water using Real and Apparent Depths. A Leaving Certificate Physics Mandatory Experiment. Related: apparent, cabinteely, certificate, community, depth, index, leaving, optics, physics, real, refractive, school Display Video Comments | Hide Video Comments | Add Comment |
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Finding the Focal Length of a Converging Lens Posted by: c4science
Video duration: 167 seconds First we found an approximate value for the focal length of the converging, aka convex, lens. We focused the image of a distant object, a cloud onto a screen. Then we found a more precise value using a raybox with cross-hairs, an optical bench and a screen. Related: cabinteely, certificate, community, converging, experiment, focal, leaving, length, lens, light, mandatory, optics, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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Charge Separation with a Drinks Can or Electroscope Posted by: c4science
Video duration: 144 seconds A positively charged rod near a conductor attracts electrons. This leaves the opposite side of the conductor with a deficiency of electrons, i.e. a positive charge. Related: cabinteely, can, certificate, charge, community, drinks, electroscope, gold, leaf, leaving, physics, rolling, school, separation Display Video Comments | Hide Video Comments | Add Comment |
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Introduction to capacitors Posted by: c4science
Video duration: 131 seconds A look at the parallel plate capacitor. Related: cabinteely, capacitor, certificate, community, electricity, leaving, physics, school, static Display Video Comments | Hide Video Comments | Add Comment |
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Graphing Current and P.D. for a Diode Posted by: c4science
Video duration: 183 seconds We used a variable resistor and two cells to vary the p.d. across a diode while measuring the current passing through it. We drew a graph of the result in forward bias then in reverse bias. Related: cabinteely, certificate, community, diode, electricity, experiment, graph, leaving, mandatory, physics, school, semiconductor Display Video Comments | Hide Video Comments | Add Comment |
![Investigating Joule\](http://img.youtube.com/vi/xSPtvVAfOD0/2.jpg "Investigating Joule\") |
Investigating Joule's Law Posted by: c4science
Video duration: 355 seconds A Leaving Certificate Physics mandatory experiment. We passed a current through a fixed mass of water for a fixed time. Then we graphed the change in temperature of the water against the square of the current. Related: cabinteely, certificate, community, leaving, mandatory, physics, school Display Video Comments | Hide Video Comments | Add Comment |
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Resistance of a Thermistor with Temperature Posted by: c4science
Video duration: 112 seconds We measured the resistance of a thermistor, a semiconductor, while varying its temperature. Then we graphed the data. Related: cabinteely, certificate, community, electricity, leaving, physics, resistance, school, temperature, thermistor Display Video Comments | Hide Video Comments | Add Comment |
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The Photoelectric Cell Posted by: c4science
Video duration: 191 seconds We used a photoelectric cell, red, green and blue filters and a coulombmeter to show that photoemission occurs only for light above the threshold frequency. Related: cabinteely, cell, certificate, community, leaving, photocell, photoelectric, physics, school Display Video Comments | Hide Video Comments | Add Comment |
Latest comments made on this video:
By: emperorofhell. on 21 Nov 08, 19:30:31
Go on Adam....you big scientist you, your famous now....can i have an autograph??? Its Aaron
By: c4science. on 12 Oct 08, 21:08:09
Thanks. The cardboard box is definitely easier than cramming a human pyramid into our tiny dark room. The source came as part of a Unilab kit. There's a still of it in the focal length of a converging lens video.
By: yerrahyouknow. on 12 Oct 08, 19:40:36
The cardboard box is a very nice tip - I need to stock up! Rather than a cross-hair source I use greaseproof paper with an arrow marked on it, but your source looks more accurate. Do you draw on the same paper or use something else. Thanks for this.