I ain't gonna lie it's less than 24 hours until the exam and I'm only learning this now
@jessieballpk
6 жыл бұрын
BigTobz_ygm literally same here
@feizan4853
6 жыл бұрын
How did you lot do?
@hamadkhan962
6 жыл бұрын
What'd you get?
@aestheticart4955
4 жыл бұрын
Great!
@mr._unchained
3 жыл бұрын
My exam is an hour from now and it's now I'm learning it😂😅😢
@vanessasawr1387
6 жыл бұрын
Time to learn the entire A2 course in 2 days because someone spent most of year 13 doodling in her book rather than paying attention in class. Great work on these videos btw, I think if I put in even half the effort you do I could probably get an A :D
@hlomoyo6655
3 жыл бұрын
why is it soo easy to be distracted at level?? lol
@mastershifu8182
2 жыл бұрын
@@hlomoyo6655 freedom
@xxtenchingchong7055
Жыл бұрын
5 yrs later im in the exact same position
@osqmeister
7 ай бұрын
@@xxtenchingchong7055 9 months later im in the exact same position
@jjjjj8327
4 ай бұрын
@@osqmeister no comment😥
@alzaphon
6 жыл бұрын
dude if i get a B or an A for physics im naming my child after you and im donating one of my kidneys in your name.
@ScienceShorts
6 жыл бұрын
So...'Shorts' as their middle name?
@leahthomas8861
6 жыл бұрын
What did you get?
@hishamawan16
5 жыл бұрын
Looks like he accidentally donated both kidneys.
@ScienceShorts
5 жыл бұрын
@@hishamawan16 This is the best comment anyone's ever left on one of my videos.
@hishamawan16
5 жыл бұрын
Science Shorts Thanks sir. I’m from Pakistan and I find your videos very helpful. Can you please do a video on electronics and communication systems.
@ano_nymous3493
4 жыл бұрын
Something that you didn't necessarily cover is the question type where you are given like the flow rate of a machine in Kg/s. So you must use the fact that P= Q/t to calculate the Power of the machine when only given change in temp and flow rate. :)
@dumplingdude8083
6 жыл бұрын
wow, this visual way of teaching is amazing. It's clear and helps me actually remember stuff, thanks ^w^
@willowillotech7493
6 жыл бұрын
Super explanation 👍🏾. You really know how to break things down for even a toddler to understand 👌 Nice one, keep it up
@ashrafahmed2720
6 жыл бұрын
These videos are perfect for small revision
@tamannazaman8802
6 жыл бұрын
Thank you so very much!! Helped me immensely, especially the harder problem in the end...
@L2K4S
5 жыл бұрын
For SLH could I say: "The energy required to melt/vapourise 1kg of subtance *without changing temperature*
@jakebrown5967
4 жыл бұрын
for anyone reading this in the future, make sure to put without changing the temperature to make sure you get the mark
@fishmcfish3850
2 жыл бұрын
@@jakebrown5967 Person from the future is here to thank you for the heads up
@leosho.28
6 ай бұрын
thank you!!
@TheClawMaster_1
5 жыл бұрын
Amazing work, thanks for taking the time to help everyone out
@sylvieeatsghosts
6 жыл бұрын
lmao anyone notice how he paused before adding the extra zero to 420
@ScienceShorts
6 жыл бұрын
Lol...?
@sylvieeatsghosts
6 жыл бұрын
nah but this video is bare helpful thank you
@ScienceShorts
6 жыл бұрын
Np. You obviously think I'm far edgier than I am :P
@matthewadams4897
6 жыл бұрын
what a legend ;)
@50subscriberswithnovideo87
4 жыл бұрын
@@ScienceShorts trust me bro your videos are damn helpful
@muhammadahsan7239
6 жыл бұрын
In the last example, why the equation is m×c×(20-T) instead of m×c×(T-20)
@mahin6113
6 жыл бұрын
The change in temperature must always be positive as it is a magnitude, we know T must be less than 20 but higher than -5. So T-20 will be negative and will not be used whereas 20-T is positive and used.
@muhammadahsan7239
6 жыл бұрын
Thank you
@virajsfvk
6 жыл бұрын
or you could do |T-20| :P
@totallyunrelated1292
22 күн бұрын
The T is the temperature that is transferred due to equilibrium into the other substance - Ice. T is therefore lost by the orange juice and gained by the ice, but as the ice already has a temp of -5, we must factor in that the ices new temp will be T (new gained temp) -5.
@AliKhan-zl2kk
6 жыл бұрын
@Science Shorts Thanks will 100% donate :)
@barbiemwangi7239
6 жыл бұрын
literally saved my life
@tharuligunaratne4228
3 жыл бұрын
You're the best!!! Thx A LOT for the video!!!
@moezjadran6720
3 жыл бұрын
These lectures are quiet old, can i still watch these?
@saifahmed7860
6 жыл бұрын
28 hours to cram the entire of A2 physics, lol.
@UnverifiedMods
5 жыл бұрын
11:26 ice and water have different specific heat capacities
@AviationWithAbrar
2 жыл бұрын
for A level they use the same to make it less complicated
@pavelstor9579
4 жыл бұрын
As Jerry Smith already poited out correctly below, the last example is a bit unfortunate. The cube of ice heats up from -5C to 0°C. Then it melts, it turns into water, which would have 0°C. This water then warms up to the final temperature T. Whilst this is happening , the limonade cools from 20°C to the unknown temperature T. The specific heat capacity of ice is 2090 J/kg.K, the specific heat capacity of water is 4180 J/kg.K, they are very much different, so there is definitely missing a third member on the right side of the equation. Also, notice that specific latent heat of melting of ice is 334 kJ/kg, so the energy needed to melt the ice cube in this example is very roughly 10x greater than to warm it up, first by 5°C in the form of ice, then by T°C as water. Indeed, small ice cubes are cooling drinks by melting, because melting needs a lot of energy.
@ScienceShorts
4 жыл бұрын
Yes, my example was very general, going with the assumption that the SHC for ice and water are the same.
@fbdjwjflac
3 жыл бұрын
Hmmm surely on the flat part of the graph, the energy is breaking the intermolecular forces, not the bonds?
@Raihan_Mustakim
Жыл бұрын
amazing !!! finally got exactly what I was looking for 😇
@joeboyjoachim7030
Жыл бұрын
this was really helpful please can you go further to the calculations
@jerrysmith5281
6 жыл бұрын
I have trouble understanding what you did from 10:30 . Doesn't water have different specific heat capacities at different states? If it does, then why can we use E = mcT to calculate the energy in raising the temperature at two different states?
@ScienceShorts
6 жыл бұрын
In reality, yes, but not at A-level.
@jerrysmith5281
6 жыл бұрын
Oh I see, thank you
@elcraigo7561
6 жыл бұрын
Good question though
@jacklong7159
5 жыл бұрын
thanks g
@hadrienbienvenu-lalot4388
6 жыл бұрын
Thanks man !
@parvathisunil7037
2 жыл бұрын
thank you for the explanation, the last equation in heating curves is that equation fixed?
@florentinosanchez3969
Жыл бұрын
Very nice video
@SJxBFC
6 жыл бұрын
saving my arse rn
@nathanbrown492
6 жыл бұрын
What if you can't tell if the orange juice will freeze or the ice block will melt?
@akshit1101
9 ай бұрын
At 11:09 you say that we can combine the change in temperature for both ice and water but I don't think we can as the specific heat capacity for ice and water are different. Won't it give a different answer?
@ScienceShorts
9 ай бұрын
You are correct. In reality they are quite different!
@akshit2006
9 ай бұрын
Thanks!@@ScienceShorts
@disswade1104
2 жыл бұрын
God bless you
@rizna114
10 ай бұрын
Thhxx ommgggg ommggg ommgg it's saved me OMMMGGGGGGGGGGGTGGGGGGGG 😭😭😭😭😭
@bionic3604
4 жыл бұрын
At 12:32 , why is it (20-T) isn’t the change in a factor (final - initial) so whatever the final temp is at comes first. You did final minus initial for ice where u said (T-5) but not for the first part. Could u explain why ?
@abdullaahimohamed2695
3 жыл бұрын
It’s because the energy needs to be +ve. If you did (T-20) you’d get a -ve answer as T is smaller than 20. InshaAllah that helped.
@bionic3604
3 жыл бұрын
@@abdullaahimohamed2695 it helped but a little too late 😂 I’m a Engineer at UCL now
@abdullaahimohamed2695
3 жыл бұрын
@@bionic3604 that’s really cool btw
@dude_mude3366
8 ай бұрын
LIFEEEEEE SAVERRRRRRRRRRR ♥
@husseinjusab
6 жыл бұрын
So the reason why u made the equations for the energy of the juice and ice equal is because the loss of energy/temp of the juice will be the gain of energy/temp of the ice? And why did you add on ml
@adamlermo2427
6 жыл бұрын
He adds on ml because he assumed that the ice melts, therefore changing state and meaning some energy will be used to break the interactions between the liquid molecules, which is a reasonable assumption to make. 12:54
@tahalamia3835
3 жыл бұрын
Is this for Cambridge A2 level or for edexcle student
@shteam7294
5 жыл бұрын
why is the energy of ice not (-5 - T ) You put (t- - 5 )
@chloelouise7123
5 жыл бұрын
the temperature would have to be positive as the ice is melting and therefore cant get colder
@robellyonathan440
5 жыл бұрын
@@chloelouise7123 if thats the case then why is it 20-T for the orange juice??
@CCCZMC
5 жыл бұрын
@@robellyonathan440 For the orange juice it is cooling down so the change in temp is 20-T however for the ice it is warming up so the change in temp is T-(-5)
@Holly-ew7ps
5 жыл бұрын
@@CCCZMC nah I still dont get it. Why isn't it just (final temp - initial temp)
@thepolarsavage716
5 жыл бұрын
@@Holly-ew7ps If I've understood correctly, then it is final temp minus initial temp. T is the final temp -5 is the initial temp So final temp - initial temp = T-(-5) Sub in some values for T and you'll see that it works.
@fazilarahmin7133
6 жыл бұрын
were we meant to do the last example? we were not given masses
@siddharthaupreti3522
6 жыл бұрын
is this according to the syllabus of CIE ?
@maryammaryam7895
5 жыл бұрын
Cie crap Why there aren't more source for cie maths and physics 😠
@Reversott
Жыл бұрын
thank u daddy)\
@aleenzehra3323
5 жыл бұрын
P3 feat. P2 (aqa)
@hishamawan16
5 жыл бұрын
Shouldn't it be T - (-5) at 13:35.
@chinmayvashishtha
5 жыл бұрын
it is, just the brackets aren't there. Look closely
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