Here is a set of very useful Videos for AS Physics (Unit 1) :
Particles, Quantum Phenomena and Electricity
http://www.youtube.com/playlist?list=PL1C8453A4138E2AEA&feature=plcp
Here is a set of very useful Videos for AS Physics (Unit 1) :
Particles, Quantum Phenomena and Electricity
http://www.youtube.com/playlist?list=PL1C8453A4138E2AEA&feature=plcp