A complete summary of edexcel a level physics ‘gravitational fields’ notes, handwritten by an A* physics student (2024), with definitions and diagrams. These notes are a combination of my teachers, physics and maths tutors and further reading to form a complete set of thorough notes.
g mass of point mass or
sphere (ug) gat
-
radius (m)
-velocity
>
&
=
Newron's m
Kepler's 3rd
law of
gravitation law
F =
GM
T
proving Kepler's 3rd law
2f =
ma a =
ran2F =M
g = Ef =
ma
satellites
if the satellite is in a stable orbit then
i
! 4π 2 r3
GM
the force of gravity is exactly sufficient to
provide the acceleration towards the centre orbit
mmmstationary
required motion ·
centre orbit be
-"Most
for circular of must
centre
of earth
-
for Earth :
mass 5 98
.
xiong , be a common accis on
radius =
6 .
37 x 10'm rotation
·
around the
:
equator
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