wave speed Flashcards
the speed at which a wave travels energy from one place to another varies according to the
medium through which it progrates
what does progrates mean
travels
wavelength and frequency- in a given medium waves travel at a
fixed speed or velocity
wavelength and frequency-speed is
distance travelled by the wave over time taken
wavelength and frequency- travelling one wavelength takes
one cycle and so one periodic time
to calculate frequency
f=v/ wavelength
what is frequency measured in
Hz
musical instruments with strings-the notes without changing the length by making changes to the .. and so.
medium, altering the speed of the waves
musical instruments with strings-
thicker strings with more mass per unit length give a slower speed and hence
a lower note
musical instruments with strings-
tighter strings have
more tension
musical instruments with strings-
tighter strings give a faster speed and hence a
higher note
tension is a force measured in
newtons
the equation for wave speed is
v=square root(T/u)
air columns in pipes- the speed of sound in air is fixed for any given temperature and pressure s you can only tune…
brass/ woodwind instruments by altering the length of the pipe being used
the speed of light
in free space(vacuum) light and other electromagnetic waves always travel at …..and what is this represented by
2.998 x10to the 8 m/s -1, c
