#4.4.4a
stationary (standing) waves using microwaves, stretched strings and air columns
#4.4.4b
graphical representations of a stationary wave
#4.4.4c
similarities and the differences between stationary and progressive waves
#4.4.4d
nodes and antinodes
#4.4.4e
(i) stationary wave patterns for a stretched string and air columns in closed and open tubes
(ii) techniques and procedures used to determine the speed of sound in air by formation of stationary waves in a resonance tube
PAG5
#4.4.4f
the idea that the separation between adjacent nodes (or antinodes) is equal to λ/2, where λ is the wavelength of the progressive wave
#4.4.4g
fundamental mode of vibration (1st harmonic); harmonics.