Waves Flashcards
Wave speed =
Frequency x wavelength
Phase difference
How much further through an oscillation one wave is than another measured as an angle
Path difference
How much further one wave has travelled than another
Longitudinal
Oscillations that travel parallel to propagation
Transverse
Oscillations that travel perpendicular to propagation
Progressive wave
Transfers energy from one place to another
Frequency
Number of wavelengths that pass a point per unit time
Wavelength
The distance between 2 adjacent peaks
Reflection happens when
A wave travels from one medium to another, changing speed
I (intensity) =
P/A
Intensity directly proportional to
(Amplitude)^2
Intensity
Energy transfer per unit time, per unit perpendicular area
A wave is plane polarised if
All of the oscillations are in the same plane
Only transverse waves can be polarised becuase
All longitudinal waves oscillate parallel to propagation
EM waves order
Radio Microwave Infrared Visible light Ultra violet X-ray Gamma ray