Change p.d./current see effect on compass
Helen rates this resource as good
Change p.d./current see effect on compass
Helen rates this resource as good
Change turns, p.d., measure B field
Watch a flash animation of step up/step down
Helen rates this resource as Good
See varying E and B fields
See photons heating ground/air
http://mw.concord.org/nextgen/#interactives/physics/light-sound-physics/sunlight-infrared-physics
See varying E and B fields
http://www.walter-fendt.de/html5/phen/electromagneticwave_en.htm
Reflection and refraction
http://www.walter-fendt.de/html5/phen/refractionhuygens_en.htm
Resonance
Seismic waves