Photoelectric Effect
Produced by the National STEM Centre and the Institute of Physics, this video demonstrates how to use a gold-leaf electroscope, zinc plate and an ultraviolet light source. The zinc plate is placed onto the top of the electroscope and it is given a negative charge. The electroscope can be discharged when ultraviolet light is shone…
4/5- Publication year: 2010 to date
- Video
Signal Generator
Produced by the National STEM Centre and the Institute of Physics, this video demonstrates the use of a signal generator to illustrate waves and sound. The video shows how features such as frequency, amplitude and wave form can be demonstrated using a loudspeaker and an oscilloscope.
- 4/5
- Publication year: 2010 to date
- Video
Electric Motor
Produced by the National STEM Centre and the Institute of Physics, this video shows a simple method for making an electric motor using a battery, strong magnets and a copper coil. It allows students to investigate Fleming's left hand rule and the forces generated in an electric motor.
- 5/5
- Publication year: 2010 to date
- Video
Electromagnetic Induction
Produced by the National STEM Centre and the Institute of Physics, this video demonstrates the process of electromagnetic induction. The video shows a simple piece of equipment that can readily be made which contains spinning magnets, a wire coil and a lamp. Spinning the magnets past the coil produces an electric current and…
- 5/5
- Publication year: 2010 to date
- Video
Fire Piston
Produced by the National STEM Centre and the Institute of Physics, this video demonstrates how compressing a gas increases its temperature. A small piece of cotton wool is placed into the bottom of a narrow plastic tube. When the air is rapidly compressed by a piston, the air temperature increases and the cotton ignites. The…
- 5/5
- Publication year: 2010 to date
- Video
Oscilloscope
Produced by the National STEM Centre and the Institute of Physics, this video demonstrates how to use an oscilloscope to measure potential differences that vary with time. The clip shows how to set up the oscilloscope and explains how the vertical displacement corresponds to a potential difference. The horizontal scan can be…
- 5/5
- Publication year: 2010 to date
- Video
Bin-bag Capacitor
Produced by the National STEM Centre and the Institute of Physics, this video shows how two metal foil sheets and a bin-bag can be used to show how a capacitor works. The metal foil acts as the plates and the bin-bag as the dielectric. The model capacitor can be charged and discharged as well as demonstrating what happens if…
- 5/5
- Publication year: 2010 to date
- Video
Brownian Motion
Produced by the National STEM Centre and the Institute of Physics, this video illustrates how to show the movement of particles by Brownian motion. Instead of using the traditional smoke cell, the video shows how Brownian motion can be observed in a suspension containing micrometre diameter polystyrene spheres. Using a microscope…
Van de Graaff Generator
From the National STEM Centre and the Institute of Physics, this video is aimed at teachers and shows how to get the best out of a Van de Graaff generator. In the video, Michael de Podesta explains how the generator works and gives some tips on getting consistently good results when using the apparatus. The video concludes with a…
- 5/5
- Publication year: 2010 to date
- Video
Power Lines
Produced by the National STEM Centre and the Institute of Physics, this video is aimed at teachers. Alom Shaha shows a demonstration that can be used to illustrate power transmission and why high voltages are used to minimise power loss.
- 4/5
- Publication year: 2010 to date
- Video
Monkey and Hunter
From the National STEM Centre, this short video illustrates the effect of gravity on a projectile's motion by using a classic physics demonstration called the Monkey and the Hunter. If a hunter fires horizontally at a monkey in a tree, and simultaneously the monkey releases their grip to fall off the tree, will the bullet hit…
- 5/5
- Publication year: 2010 to date
- Video
Diffraction of Laser Light
In this short video, from the National STEM Centre and the Institute of Physics, Michael de Podesta explains how a laser can be used to show the diffraction and interference of light. Using a laser pen in the classroom, the wave nature of light is demonstrated as a thin wire is used to generate an easily-seen interference pattern.…
- 5/5
- Publication year: 2010 to date
- Video
Electron Diffraction Tube
In this video, produced by the National STEM Centre and the Institute of Physics, Alom Shaha explains the elements of an electron diffraction tube and how to use one to demonstrate a diffraction pattern. The video is aimed at teachers but it could also be used with older students to illustrate the working of an electron diffraction…
- 5/5
- Publication year: 2010 to date
- Video