disturbance in a medium that results in vibration/oscillation
Wave speed (v)
speed at which wave crests move forward
Depends on properties of the medium (tension, density, mass, etc.)
Relationship between period (T) & frequency (f)
f = 1/T
Relationship between wavelength (λ) & frequency (f)
Relationship between speed of light (v) & index of refraction (n)
c = 3.00 x 108 m/s (constant = speed of light in a vacum)
Equation for how wavelength changes between media
wavelength inversely proportional to ___ but directly proportional to ___
wavelength inversely proportional to index of refraction but directly proportional to speed
Does wavelength or frequency effect the speed that electromagnetic radiation travels?
All electromagnetic radiation travel at the speed of light (regardless of wavelength or frequency)
particles vibrate in a perpendicular direction relative to the motion of the wave
particles vibrate in along the same direction as the motion of the wave
Which type of wave can propagate through a fluid?
Only longitudinal waves
lower frequency (f) =
lower frequency (f) = lower tone, flatter
higher frequency (f) =
higher tone, sharper
When mass of tuning fork increased, what happened to the frequency?
frequency decreased because inertia increased
When frequencies of tuning forks are CLOSE vs. FAR how is the sound?
close → gradual loud to soft sounds
far apart → rapid change from in sync to opposite
longitudinal pressure wave in air (or in a medium that is able to vibrate)
every point on a wave front can be considered a new wave source that spreads out in the forward direction at the speed of the wave itself. The new wavefront is the envelope of all wavelets–tangent to all of them.