This note is an AQA A level Physics note on Waves. There are useful tables, graphs and some drawings and illustrations attached in the note for better understanding.
occurs when energy is transferred from one point to another
without there being any transfer of matter blan those points
Get -
de
e
En
Waves
mechanical electromagnetic
-require physical medium for -can travel through vacuum
by the
their propagation -progress partly delayed
physical medium
ex) water waves a
ext
light is t
Mill
-
sound waves
radio waves ,
microwaves ,
waves on
strings a
X-rays
*All electromagnetic
speed
at the same
waves travel
in a vacuum
-standing sound waves -
high pitch higher frequency & lower i
.
1 Progressive waves ,
definitions
has fixed end
Progressive wave no
:
·
-
If mechanical disturbance at
X
B >
Point A causes a particle at
vo
that point to be ed that
↑
,
I
M
particle can
drag its neighbor
Amplitude
-
along behind it causing
- -
the wave
⑧
W to travel from A via the disturbance
A Distance from
↓
- -
in intermediate particles
↓
->
source ,
to
point B
-
direction of
the energy
↓
direction of displacement
& down waves
-up
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