Measuring speed of sound in air using Audacity
A physics demonstration on how to measure the speed of sound in air using Audacity , an open source audio recording software. There are Windows and Mac versions of this free...
March 2017
Magnetic Force on a Current-Carrying Conductor
Using a neodymium magnet, some paper clips and a battery, you can demonstrate the magnetic force acting on a current-carrying wire while recalling Fleming's left-hand rule. Using...
Building a Simple DC Motor
Using material that is easily available, you can build a simple homopolar D.C. motor (one that uses a single magnetic pole. I made the video above to help you do so. The material...
Magnetic Shielding
I made this rather simple video this morning showing a physics demonstration on the effect of magnetic shielding. A paper clip is shown to be attracted to a magnet. A series of...