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Waves and the Electromagnetic Spectrum (Waves (Longitudinal waves…
Waves and the Electromagnetic Spectrum
Waves
Transverse waves
Move perpendicular to the direction the wave travels
Most waves are transverse
All electromagnetic waves
S-waves
Ripples and waves in water
Longitudinal waves
move parallel to the direction the wave travels
Examples
sound waves
P-waves
Longitudinal waves squash up and stretch out the arrangement of particles in the medium they pass through, making compressions (high pressure, lots of particles) and rarefactions (low pressure, fewer particles).
Equation
Wave speed = Frequency * Wavelength
v = x/t
v = wave speed (m/s)
x = distance (m)
t = time (s)
v = f * lambda
f = frequency (Hz)
lambda = wavelength (m)