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Wave Parameters and Behaviours - Coggle Diagram
Wave Parameters and Behaviours
A wave transfers energy from one point to another
A
wavelength
is the distance from a point to another point where the wave begins to repeat itself -
peak to peak
or
trough to trough
Wave equations
Period = 1/frequency
T=1/f
f=1/T
Frequency = number of waves/time
f=n/t
Wave speed = frequency x wavelength
v=fλ
Diffraction
is the
spreading out of waves
when they go
through a gap
, or
past the edge of a barrier
There are two types,
transverse
and
longitudinal
The
particles vibrate at a right angle
to the direction that the energy travels
All waves in the
electromagnetic spectrum
and
water waves
are transverse waves
The
energy
in Longitudinal travels in the
same direction as the particles vibrate
Sound waves
are longitudinal waves
The
amplitude
of a wave is half of a wavelength -
peak to trough
Frequency
is the
number of waves produced
in
one second
by the source producing the wave
The
period
of a wave is the time taken for a complete wave to be produced - t
ime take for a wave to pass a point
Wave speed
is a measure of how quickly a wave travels from its source -
distance covered by a wave in one second
Speed of light = 3X10^8ms-^1
Speed of sound (in air) = 340ms-^1
The extent of the spreading in
diffraction depends
on how the
width of the gap
compares
to the
wavelength
of the waves
The
greater
the
wavelength
, the
greater
the
diffraction