okay guys so in the last video we spoke
about how you can take notes and give
you some tips and advice on how to do
them so i thought in today's video i'm
going to get some notes for you and
we're actually going to do a live
note-taking demonstration so from here
as you can see i've got some a-level
physics so a lot of you may not be doing
a level physics that's totally fine the
notes that i chose for today have an
equal kind of spacing of definitions
equations and some diagrams so this
should be able to apply to pretty much
any a-level you're doing so and i'm just
going to show you my process of doing it
so
these are just from physics and maths
tutor so
i'll leave the link to these notes in
the description just so you can get to
them but let's get started so we'll just
do a couple of pages of this so first
things first
we're going to write the title so the
title for this one as you can see is
particles so i'll just literally write
particles
and
radiation so your handwriting doesn't
actually need to be particularly neat
with this
all that matters is you get down the
proper information and you kind of color
code it properly
and for the first part it's literally
just
particles so using subheadings and
things like that are really good make
them stand out by underlining them
capitalizing et cetera you can even
write them in different colors if you
have another color so
as you can see on the right i just have
four different colors i also have blue i
also have a pencil and a ruler that's
all you really need if you're using a
tablet then you basically have an
infinite number of colors
and let's just start reading through it
so the first part says kind of the
constituents of an atom an atom is
formed of three constituents protons
neutrons and electrons so that will be
the first thing i write okay so atoms
made of
protons
neutrons
and electrons also feel free to watch
this either on speed two or maybe even
skip through it so you can just see the
process afterwards and that'd be the
first thing now
the rest is information so they're known
as nucleons so we can even write that
down
as well so nucleons
found in nucleus
so this would be
protons
and neutrons
so as you can see that first paragraph
is basically written in two small
sentences so just take out the key
information now this is where knowing
your spec is actually going to come in
really really handy because if you know
your spec you know exactly what you can
be tested on so i would actually have
while i'm making my notes for the first
time
a printed specification and i can just
have a look at the bullet points because
it's a bullet pointed list exactly what
they want me to know
so for that that's all we actually need
now this table here and this is actually
a lot of this is from gcse science so
some most of you are probably already
going to know this anyway but there is a
new equation here specific charge now
for specific charge since it's an
equation i like to use a different color
so for this i'm just going to use let's
say purple and all i do is i write out
specific charge
and that is just equal to the charge of
the
particle divided by its mass
and the reason why we're using a
different color is this stands out so if
i'm looking at my particles and
radiation notes chances are i'm actually
going to be looking for an equation so i
can quickly see exactly where the
equation is and the next part that we
have
are the units
so it tells you the unit slightly
further down so here it says coulombs
per kilogram so i'm just going to write
here
for units in maths and physics and
science and things i actually put the
units in
square brackets just to make it super
super clear
so that is exactly what i do and the
rest of this is kind of obvious so here
it says the specific charge
is the charge to mass ratio
so you can kind of ask yourself whether
or not you want to write that down now
for me personally
i know that if you divide one number by
another you can always say that that's a
ratio or it's a division or it's a
charge per unit mass i know that
instinctively so i don't need to write
it there's no reason why you don't have
to write it remember these notes are for
you
so other than that i think this is
pretty much everything else we need but
there is another important thing here
we have
this
it's a type of notation so in chemistry
and physics instead of writing out you
know for example carbon and then we say
exactly how many protons and neutrons it
has
instead we use this we use chemical
symbols so what we're going to do here
is we're going to write that out and
since it's something different i'm
actually going to write out in green
it's a notation so i personally write
notations in green so so far purple for
calculations like equations
uh like this cyan color for
units and i'm going to use green if it's
a notation so it doesn't come up that
often but we're going to have
x
and a
said and then what we're going to do is
define exactly what they are now since
it's just words i'm going to write it in
black so z
is just the proton
slash atomic number so this is unique
for every single
element
and then we have the mass number
or the nuclear number
and that's unique for every single
isotope
so again i've summed up basically the
whole first page of notes
and i've summed it up in maybe a third
of a page
okay so that's kind of the power of note
taking and this is all of the important
information so again
let's say this this example here
you can use it if you want so if math
isn't your strong suit or you kind of
don't understand a calculation have an
example and i would write those out in
blue i'll write example one and i'll
have basically exactly what it says on
the screen at the moment and that would
help me out but again for me i think
that's totally fine just take the charge
divided by math that's totally fine okay
and the next thing we have is another
definition however
this definition is a bit special
so isotopes are atoms with the same
number of protons but a different number
of neutrons so again if you're if you're
not doing a level physics or you're not
planning on doing it that's totally fine
essentially what i'm doing here is i'm
taking notes in roughly the same way
you'd expect so we have like definitions
we've had calculations we have notation
we're going to have some diagrams as
well so just take the bits that you are
used to so you should be looking at this
and seeing why i'm making the decisions
i am and how i can apply it so it can
apply to any subject so
since this is a definition i like to
write definitions in something that
sticks out so the this is actually an
exam definition so again this is where
knowing your specification helps
this up here atoms made of protons
neutrons electrons nucleons are these
this proton and mass number i know that
this isn't an exam question they'll
never ask me what z is they won't ask me
what atoms are made of but i know that
they will ask me or they can ask me more
likely that what an isotope is so again
knowing your specification and having
that out in front of you in lessons and
whenever you're doing questions and
notes etcetera is extremely important so
simply just write out the definition
isotopes are atoms
with the same number
of protons
but a different number
of neutrons
okay so what i'm extracting here is as
many marks as possible this is an answer
to a one mark
exam question so there you go i've got
one mark right here and i've also got
some marks for the specific charge when
that comes up
so if you have a look at the rest of it
this is done through carbon dating et
cetera this is just an example of an
isotope but if i understand what isotope
is maybe from gcse or just from my own
knowledge i don't need to write it down
so that's another paragraph we don't
need
so now we're looking at stable and
unstable nuclei you can write a little
subheading if you'd like let's just do
it
to be super neat so stable
i promise i'm not going through all of
these notes by the way it'll only be a
short session so i'm not going to go
through all of these so stable and
unstable
whoops
nuclei
so i'm writing a bit quickly that's why
my handwriting isn't the best
and the next thing he says the strong
nuclear force keeps nuclei stable by
counteracting electromagnetic so
probably the next thing i'm right
so
and this is where you can kind of have a
creative choice here
they define the strong nuclear force
first and then they draw the diagram but
personally i'd actually draw the graph
first okay so let's do that so again
ruler and pencil always draw diagrams in
pencil you can go over them in pen
afterwards but i do them really lightly
in pencil and if i want to go over them
and pen i can i can trace that out keep
in mind if you have a pen you can't
actually
erase it
and tip x is really ugly for notes and
it can ruin the paper now of course if
you're using a tablet this isn't a
problem at all so let's draw this graph
out again
use a ruler
that's neat i'm not going to go over
this in pen but like i said you're more
than welcome to
and then we want to stick it out a
little bit
and then we do our little arrows
and then actually we don't need one
there and all we need to do now is take
out the important
information
okay
so if we look at the important
information here
it's a graph so what's important about a
graph well these numbers on the side
that they have are important the actual
overall shape of the graph is important
as well as um kind of this bit on the
side where it says repulsive and
attractive so let's draw the shape first
so again it doesn't need to be perfect
uh something like that that's okay the
overall shape is good and what are these
things on the side so the
axis names we have separation of
neutrons and femtometers
so separation
of new cleons uh
in femtometers and along this axis it's
the
force between nucleons
and so i might write this in the margin
and that's in times 10 to the minus 4
newtons
cool
and now we actually want to add the
values that we have so first off this is
obviously the origin zero
this here is 0.5 i'm just getting this
from the notes by the way don't worry
about understanding this because if
you're not doing physics it really
doesn't matter to you
and this down here says attractive
again i will actually have videos on a
level physics so i will explain this
graph at some point on the channel but
i'll come up a bit later and up here is
plus three
and here it's repulsive and since that's
a different color i'm actually going to
use a different color as well
so
okay and again that just helps it stand
up from the axis title as well right
because i'm not writing it all in black
just keep in mind your mind can
your brain actually picks out or your
eyes whatever you want to call it will
pick out different colors very easily
like the things drawing my eyes at the
moment is this pink thing here which i
said was an exam question so it's good
that my brain is picking that out and
then the calculation which is important
too and then this repulsive thing and
right underneath i've got attractive
that's the important part of the graph
okay
so again i didn't spend super long in it
you're not vincent van gogh or anything
don't
make it super you don't have to make it
super pretty some people actually like
it when their things look pretty
so it motivates them to do the notes
more that's totally fine makes it easier
to look at too so if you want to do that
that's totally fine but it's not
necessary
and okay so now let's finish off the
notes for the strong nuclear force so
what exactly is it
so
it says here that it keeps nuclei stable
by counteracting the electromagnetic
forces of repulsion okay cool so what
does this mean to me
so keep in mind that i'm not mindlessly
copying out the notes if you look at my
notes compared to the notes on the
screen they aren't the same the wording
is different because what i'm doing is
i'm taking in the information
and then i'm explaining it in my own
words now of course the wording is
similar because it's the same idea
but it shouldn't be the same okay so
strong nuclear force keeps nucleus
stable so what does it do well it holds
nuclei together the strong nuclear force
and again these are just words
this isn't an exam question so the
strong nuclear force
holds atomic nuclei together
and one other thing you should note is
that
when you do note taking it doesn't mean
that you just make it smaller that's not
what it always means if you want to copy
an exact passage that's more than you're
more than happy to do it or you may find
a definition but you don't think it's
enough so you instead of a one sentence
definition you actually have a two
sentence one that's still note taking it
doesn't have to be shorter it's just
writing things in your own words that
you can use to study from
and then how does it do that so how does
it hold them together actually i need to
finish the word together
by opposing
electrostatic force
between protons
and again they wrote that it's repulsion
but i know that because they're the same
charge they're going to be pushing each
other apart that's fine
so
now there's something in
the notes that i've got on the screen
that
isn't and that's going to be in my notes
on paper
and what's that well they're giving me a
graph
great what does the graph mean
explaining this kind of graph is an exam
question or it can be
but let's say it's not let's say assume
it wasn't
i need to understand this graph how can
i test my understanding well what i'm
going to do is say
what this graph shows
okay because if i can say what this
graph shows then i understand the
concepts now when you're whenever you're
drawing a graph you need to understand
it or a diagram any kind of diagram
again this works for things like
geography and history and everything
when you're looking at a table a graph a
picture whatever you should explain to
yourself what's going on
and does it make sense
because that's how you know you you
understand the concept okay
so in this question what's going on here
well
over here it says that when it's below
this line it's attractive
so between 0.5 and 3 it's attractive so
let's write this out so
0.5 to 3 fm
it's attractive
and i also might want to write what a
femtometer is a centimeter is
a million billionth of a
meter
okay and what about
below this well below 0.5
fm
it's repulsive
whoops
and this is where you might ask the
question well why is it repulsive why
does it go from repulsive to attractive
again if you're not doing um science
that's totally fine but all it's to stop
is to stop from nucleons overlapping
each other
so
so that might be a question
i write in the margin in blue and say
well i'm going to ask my teacher why is
it repulsive okay so i might literally
do that so
right and that little note there means
the next time i look at these i'm going
to now go to my physics teacher and say
why does it go from repulsive to
attractive
i don't understand that and they can
explain it to you
uh in this case it just means because i
already know the answer again you can
with this question here you can google
it ask your teacher ask your tutors
whatever but i already know the answer
it prevents nucleons overlapping
the reason for that is the radius of a
nucleon is about half a femtometer
cool and what's the last thing i can
tell well it goes to zero at three fm so
it's short range
and
you can just say approximately
three centimeters
okay so that is everything this graph
tells me in words okay
so now we need to change over go to the
next page so let's
do that
now let's make sure it's in frame still
a bit lower
there we are
and i'm just going to do a little bit
more
and
if you look here it says unstable
nuclear those have too many protons
neutrons or both
causing the strong nuclear force not to
be enough to keep them stable
cool so
i'm just going to write unstable nuclei
too many protons neutrons are both
slash neutrons
slash both
so then i might say some definitions
again
this is not an exam question so it's
just in black this is just for my own
understanding so
strong nuclear force which they call snf
too weak to hold nuclear together
to hold
nuclei
together
and another thing is that it means it's
going to decay
so the last thing i'll do is i'll talk
about these two types of decays in my
notes
and then i'm going to stop
okay so
we have essentially an equation right
it's kind of like an equation here and
it looks very complicated but it's
actually not that bad so let's talk
about alpha decay
again we're not going to go too much in
the physics of this because a lot of you
aren't going to be doing physics that's
totally fine
but hopefully you can see
how i lay out different sets of notes so
after k
this is normally
large nuclei and again i'm basically
rewriting what's here so it says it
occurs in large nuclei of too many of
both protons and neutral neutrons so
large nuclei
too many
protons
and neutrons
okay so i'm basically just rewriting
what it says but in my own kind of way
and then because it's like a
notation right remember what color
notation was it's green so let's use
green so we have a
as soon as the pen starts to work
a z x
goes to
a minus four because it loses four of
its atomic number
z minus 2 because it loses 2 protons and
that's going to be y
plus
alpha particle
cool
and then i'm going to write what
actually happens so what happens well
proton number
decrease
by
2
mass number
decrease
by
four
and that's it that basically tells me
everything that
is said on here right
so that's all good now if you notice i
actually rewrote this exactly the reason
why is because when i looked at it on
the screen i thought actually that's a
good way to represent the information so
i'm going to copy it and honestly
there's not really many ways to reword
this
that aren't just semantic differences
what i mean by that is don't
don't feel forced to rewrite
everything in a different way if it's
just one sentence it's very basic
don't like get out your thesaurus and
start looking up synonyms just to make
it different
rewrite it
assuming that you would explain it in a
different way which honestly for most
things you'll write them in a different
way
but in this case honestly there's not
really many other ways to write that so
i'm going to leave it like that and
lastly but not least we have beta
minus
decay
and if you look on the screen
a lot of words nuclei which are neutral
and rich have too many neutrons so all i
need to write really is neutron rich
you don't need to write in full
sentences right in a way that makes
sense to you because you're the one
that's going to be benefiting from these
by the way unless you're also going to
sell these online so you might want to
think about that too but if it makes
sense to you i guarantee you it makes
sense to at least one other person on
the planet
and that goes along and we have a
and the proton number increases by one
y and then we have
zero minus one
these particle plus
an anti-electron neutrino
that might have been a bunch of words
that you're not too sure about again
don't worry this is just an example
so proton number here what happens to it
it increases
by one
and the mass neutral number
same
so if you have a look
we've done the first three pages of
notes
actually no no we've done two pages of
notes and we've done it in a page and a
half so you might think well that's not
very much
right but basically i'm only taking up
75 of the space so if you had 100 pages
of notes that you're meant to record
you'll only need to write down 75 pages
but again it's not about rewriting in a
short way it's about rewriting in a way
that makes sense to you because what
this has forced me to do
is read what's on the screen
understand what's on the screen and then
write it in my own way
so i'm learning this
if you literally just copy out
everything that's on the screen now you
won't understand it which means you
won't remember it you may as well be
reading something in french as writing
out french without understanding it
right you need to understand what you're
doing if you don't understand you may as
well be writing in a different language
for the good it's going to do you
so i hope you found that really useful
or at least somewhat useful and it gives
you some ideas on kind of what i mean by
using colors and using rulers and
pencils and stuff and hopefully you can
kind of see where it's going again if
you're not doing physics don't worry
hopefully you can see that a lot of this
is applicable to other kind of
disciplines
and i hope that you have a truly
wonderful day