Refraction

 A level/GCSE #Physics Refraction an alternative way- works well on a visualiser #iteachphysics @ChatPhysics Good as an intro along with the glass of water and the arrow changing direction. This introduces refraction of different liquids.

More Resistivity

 Using the @pascoscientific from @SciChemEdu wireless motion sensor for distance and the voltage/current sensor for the resistance and plotting the resistance against distance for A level #physics prep #iteachphysics Got to see if the experiment works.

Podcast Extreme Weather

 

Inverse Square Law

 A level #Physics An easy way to understand the inverse square law. Get a spray can 10cm away spray for 1 sec, move 20cm away spray 1 sec and repeat at 40 and 80cm. The circle gets larger - same amount of paint, - measure the area. Pi radius squared. So as the volume is the same but the circle is larger we can work out the ration of the areas as the distance doubles. #iteachphysics

Using a Stroboscope to freeze a cord

 Using a Stroboscope to freeze a cord vibrating as a stationary wave. Doubling the strobes frequency we could see the forward and reverse wave in A level #Physics #iteachphysics

Lenz's Law

 Lenz's Law

Using magnetic film to show the passage of the magnet down a copper tube. #iteachphysics #teaching Using some slomo to help.

magnetic field viewing film

Using magnetic field viewing film from https://magnametals.co.uk to show the magnetic fields produced by a magnetic without having to use all those messy iron filings. The film is great made from a green flexible sheet coated with micro capsules containing nickel flakes suspended in oil.