Comprehensive revision notes on Oscillations from the Edexcel Physics A Level syllabus from an A* student in the 23/24 exam cycle. Complete with labelled diagrams and thoroughly fact checked and up to date.
·
An oscillation is a repeated motion about the object's equilibrium
position
·
An object experiencing simple harmonic motion is one which experiences a
force which acts towards the of
restoring equilibrium
centre -
,
Conditions required for SHM
1) Force and acceleration are
proportional to the object's displacement
from the equilibrium position
2) Acceleration and force are directed towards the equilibrium position .
F: restoring force
F -
= kx ↑= distance from equilibrium
k = constant
·
Acceleration & displacement in opposite direction :
a: acceleration
a -
= wax W = angular speed
·
Angular speed (w) is the angle an object moves through per unit time .
-:
frequency
" W = If or
we ↳ T : time period Unit : rads
-
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