# Physics 2 (P2) Edexcel Crib Sheet

Note I did not make this resource, I feel others should be able to access it to help them revise

This is a P2 EDEXCEL Crib sheet, Foundation and higher tier notes.

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First 80 words of the document:

Speed/Velocity, Distance/Displacement & Acceleration
Q Symb Unit Unit
u ol symbol
a
n
t
i
t
y
o
r
V
a
r
i
a
b
l
e
S s Metres per second m/s
p
e
e
d
D d Metres m
i
s
t
a
n

## Other pages in this set

### Page 2

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T t Seconds s
i
m
e
V v Metres per second m/s
e
l
o
c
i
t
y
D s Metres m
i
s
p
l
a
c
e
m
e
n
t
A a Metres per second m/s2
c squared
c
e
l
e
r

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New
ton's
Laws
(for
infor
mati
on)
1 An
object
in
motion
tends
to stay
in
motion
or a
stationa
ry
object
stay
stationa
ry
UNLESS
ACTED
ON BY
AN
EXTERN
AL

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The
force on
an
object
is
proporti
onal to
the
acceler
ation it
causes.
A larger
mass of
object
needs
a larger
force to
move it
with
the
same
acceler

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Work Done is Energy Used (Joules)

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Rutherford Scattering
Inside The Atom

### Page 7

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Beta Decay
Gamma Decay
Half Life
The time it takes the number of radioactive nuclei in a sample to decrease by 50%
Or... The time it takes the count rate from a radioisotope to decrease by 50%
Carbon Dating
All living things take in a little radioactive carbon-14 in photosynthesis, as well as the normal carbon-12. When living things die, they stop taking in carbon-14 and so the
carbon-14 present at death slowly decays to carbon-12 (half-life is 5 600 years).…read more

### Page 8

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Static Electricity
When you rub an insulator with a cloth, two things can happen:
A. Electrons move from the cloth to the insulator: cloth becomes +ve, insulator becomes -ve
B. Electrons move from the insulator to the cloth: cloth becomes -ve, insulator becomes +ve
It is only the electrons that are free to move.
Fuelling aircraft can be hazardous ­ especially if it is done quickly.