Investigate inverse square law for radiation
http://www.thephysicsaviary.com/Physics/Programs/Labs/IntensityLab/index.html
Investigate inverse square law for radiation
http://www.thephysicsaviary.com/Physics/Programs/Labs/IntensityLab/index.html
Resonance
Standing waves
Move microphones to find standing waves
http://www.thephysicsaviary.com/Physics/Programs/Labs/DistanceToDestruction/index.html
Standing waves
Interference
Resonance
Interference