26 Disaster
Natural Disaters
MET 214 Module 8
Earthquake Resistant Designs
Phys12
Ppa6 Concep Tests Ch 12
Thermal energy
Waves 2 d test review
Waves presentation
Radio waves outside of tv & radio broadcast
The electro-magnetic spectrum. Key facts All the waves travel at the same speed – around 300 000 km/s.
Waves and Sound. Simple Harmonic Motion period, T: frequency, f: time to complete one cycle # of cycles per second (Hz) (s)
