Change volume, measure pressure, answer questions
Helen rates this resource as good
Change volume, measure pressure, answer questions
Helen rates this resource as good
Visualising B/E fields in wave
http://www.walter-fendt.de/html5/phen/electromagneticwave_en.htm
Helen rates this resource as Good
Investigate effect of angle, media
http://www.physicsclassroom.com/Physics-Interactives/Refraction-and-Lenses/Refraction
Interference
Refraction
Interference
Refraction
Interference