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Summary - Unit 12 - Gravitional Fields £0.00

Summary

Summary - Unit 12 - Gravitional Fields

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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.

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  • October 6, 2024
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7570A
EXTDOLL BELLIDE
gravitational field
-

a
region of space where a mass experiences a


gravitational force



- Newton's Gravitational
gam
universal constant




=
&
"Nm2 leg
-



G =
6 67.
x 10


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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