Binding Energy - A-level Physics

[@davidasquith110]

My school no longer has any qualified physics teachers to teach us a level, this helps me so much

[@jawg2898]

lol same

[@danialw704]

same lmao

[@所谓学霸不学也罢]

you guys must be in the same school

[@sonic_liam3169]

same here! We had 2 teachers, the 2nd one left in jan, nothing the new teachers have taught us has gone in for me, these videos have been a lifesaver

[@mohammadhasibemran5955]

which country?

[@ScienceShorts]

6:37 Spot the mistake! To turn MeV into Joules, you MULTIPLY by 1.6x10^-13.

[@flyingdutchman109]

I have been taught that to turn MeV into joules you multiply by 1.6x10^-19???

[@spag5296]

Thats eV. MeV if you want to go about it that way, is multiply by 1.6 x 10^-19 *then* multiply by 10^6

[@flynnmusson5909]

Callum Paton excuse me this is a class room no swearing 😡😡

[@farutv2857]

he is correct it is suppose to be 10^13 because its to MeV which means you need t multiply the 10^-19 by 10^6 to change the eV into MeV you made a mistake identifying MeV and eV

[@leonardowilhelmdicaprio999]

1 M = 1x10^6 1 MeV = (1 x 10^6) X (1.6 X 10^-19) = 1.6 X 10^-13 J

[@mehdi_berkane14]

god bless this man

[@harrydavies6531]

Amen

[@Lazorkite]

For real !!

[@omgsolitude]

real

[@puddleduck1405]

Amen!!

[@edforever6299]

never learnt about that last point on helium being unusually stable, really helpful making notes on these videos in the week running up to the exam, thanks!

[@trajectory1483]

you revised a week before? maybe I should have, oh well, good luck!

[@jasonwiley798]

Three nucleons contribitung binding force but only one nucleon contributing em repulsive force. That ratio does not exist in any other isotopes. Tritium maybe 2:0.

[@vikram785]

I am doing a research project at school on how nuclear reactors work, and this video helped so much to explain binding energy, mass defect and how this all relates to fission. Thank you so much!!!

[@sofiatrojanovich4413]

this is the most helpful physics video i've watched through my entire course - thank you so much

[@samuelmcdonagh1590]

I really like your channel, your videos are my go to choice for consolidation after lessons, and I actively look for your thumbnails in the search results. They seem thoughtfully planned out, and they’re pleasant to watch and understand. You neatly cover the course content without expending unnecessary time, and you remain professional throughout (if we overlook the “BIG D” reference hehe). I’m sure I speak for everyone when I say that your channel is more than just a hobby or side business, but an outpost for aspiring physicists.

[@earl8590]

at 7:40 can someone explain why the binding energy goes up after uranium decays? - for anyone who needs this is how i understand it during fission energy is released from the system during the decay and to separate the atoms into its base nucleons, that energy will need to be put back in on top of what u already need. as binding energy is the energy used to separate them, it increases the mass decreases due to equation -> binding E = calculated mass - actual mass so an increase in binding E would be caused by a decrease in actual mass - as mass and energy are interchangeable

[@a.muhyee4156]

Thank you

[@earl8590]

@@a.muhyee4156 gl bruthal i ended up getting an A with me consistently getting Cs so dont underestimate urself

[@dearlantsov]

5:55 in the edexcel book, 1u=931.5 MeV, really small difference lmao but just thought i'd mention it

[@ScienceShorts]

Yep, they changed it a few years ago!

[@asherrevises8601]

Thank you so much. you singlehandedly saved my grades

[@dulapiip]

*IT'S DAY 05 & UR VIDS ARE STILL HELPING ME IN UNIT 5, ALSO UNIT 4 WENT ALRIGHT ALL THANKS YO YOU, THANK YOU AGAIN GOOD SIR*

[@offthecameraroll]

the econplusdal of physics

[@sairemkhan5589]

I swearrr

[@sairemkhan5589]

But dal is the king

[@talhapatel2233]

Really helpful and you actually explain pretty well, just wish you had more videos. And past paper solutions.

[@ScienceShorts]

+Talha Taylor Thanks :) Past paper solutions is something what I am considering doing next. 52 videos isn't enough?! xD

[@talhapatel2233]

lol....for nuclear physics. and you have nothing for medical physics. :(

[@KDAK]

medical physics would be lovely! sitting that with wjec

[@Boofy011]

It would really be much more convenient if it was called separation energy

[@franc1159]

It would man, it really would make things easier to understand

[@joshuaosei5628]

I get you, but its the energy that's being used to literally bind the nucleus together. In order to seperate it, think of the energy putting into it as though you're "paying the nucleus" the energy back that likes to have from being bound together, so that each nucleon is satisfied after.

[@freefalling4271]

Ok. This is the part I'm constantly confused about. If total BE increased, then wouldn't that mean that mass is gained rather than lost (mass-energy equivalence)? Or is there something I'm misunderstanding?

[@ScienceShorts]

Binding energy is a bit of a misnomer - it's a 'negative' energy; the energy needed to get out of the potential 'well'. If you roll down a hill, we can say that your climbing energy has increased, because it's now going to take more to get to the top again. Same idea.

[@freefalling4271]

Science Shorts ah that makes a lot of sense now, thanks a lot.

[@jasonwiley798]

​@@ScienceShortsI prefer to call it binding force, because it is the force that hds the protons and neutrons togethet in thenucleis. Otherwise known as the residual strong force, which I consider to be a misnomer.

[@crazyanimal2211]

yikes this video is bright. still fantastic content though ;)

[@magqaga]

What a good introduction of Binding Energy

[@24-7Pain]

So so so so so helpful, you're a god, thank you so much

[@charlespryke3869]

I need me some medical physics vids pleaseeee

[@majedmohammed6519]

I thought that when we convert U to MeV we multiply by (933.75) which rounds to (934) .. atleast that's in the CIE syllabus. We calculate by using E=mc^2 . So E=(1.66x10^-27)(3x10^8)^2 . while U is the atomic mass unit. Then we Get the answer as 1.494x10^-19 (J). Then we divide by (1.6x10^-19) to get (933.75x10^6 eV) which is (933.75) MeV which rounds to (934) MeV

[@Mozzie7920]

7:39, am I right in saying that the total binding energy increases because the total energy in the system has decreased so now it takes more energy to separate the constituent parts? If not then I’m a bit confused on why the total binding energy increases Edit: just seen the fusion bit now as well and my point above wouldn’t work for it so I’m confused on how total binding energy increases for both fission and fusion

[@Y4red]

do u understand it now i need help

[@earl8590]

brutha ik it prolly doesnt matter anymore an i hope it all worked out for u - the way i understand it is that during fission energy is released from the system during the decay and to separate the atoms into its base nucleons that energy will need to be put back in on top of what u already need and as binding energy is the energy used to separate them, it increases

[@vdabest2118]

Why do I keep getting ads of “ A level Physics online” on “ Science Shorts” 😂😂😂

[@hankmoody9023]

such a concise video! thank you so much for the help! please make more videos :)

[@hani8133]

Excellent video sir. Please carry on making more videos and you have all our support!

[@nahsee-zq6vg]

this is such a good explanation, thank you!

[@jessicaq.1224]

Thank you for your amazing videos, they are very helpful! I am confused about the steps in the process of mass defect. Because of the electrostatic repulsion between protons in the nucleus of an atom, there is a strong nuclear force which holds the nucleons in place. Firstly, where does this strong nuclear force come from? Is it generated by the neutrons? And why does the strong nuclear force cause a loss of the mass of protons and neutrons? How is the energy released related to this force? Does the strong nuclear force hold the protons and neutrons only, or their quarks as well? Also, how is binding energy related to all of this? Thanks again

[@ayeshashaikh4433]

thank you really for making these, you are saving my grades dude

[@benfallon3295]

what is stopping everything from tending to Fe56 if thats the most stable nuclei

[@TON-vz3pe]

It takes energy to fuse atoms, but the act of fusing atoms also releases energy. Only true for all the elements with atomic numbers lower than Iron.

[@M7RAA]

thank you

[@folbfolb]

Have u considered doing these videos for A level chemistry

[@abbieedwards685]

Great video however U-238 isn't a fissile isotope of uranium. A better example would have been U-235, which is fissile.

[@jas4768]

Does the binding energy include the energy required to reduce the potential of the nucleon to 0, from the strong force?

[@ScienceShorts]

Yes.

[@jas4768]

Also sir... How does the difference in binding energies of the nuclei in a fission reaction give us the energy given out? Eg Binding energy of Uranium- 1739MeV splits into Rb and Cs Binding energy of Rb and Cs= 1957.6MeV How is it that 1957.6-1739 gives us the energy released during fission?

[@aliaaatta8498]

.we are doing a mock paper 2 and I'm much confident on it now thanks for ur amazing videos.dont know what I would have done without them.i got a question : is the binding energy the energy needed to overcome the strong nuclear force between the nucleons from 0.5 fm to 4 fm (because it is attractive )and the rest of the energy is provided by the electrostatic force between protons to pull them apart?

[@lizzyphilips492]

There should be a heart option for such amazing videos!! THANKS

[@oskarwitha_k8258]

6:45 you said that we are given it in formula booklet but in the formula booklet we are given 1u to kg. how do we get from that to 931.3

[@7p7m7]

Underneath it says its equivalent in MeV

[@shahadamjad3691]

thank you so much for your amazing content!

[@ThomasSun-xw3ux]

Excellent video!

[@mollyb7367]

You sir are a legend

[@نورهانمحمد-ت4ع]

Thank you so much 😭💜💜

[@camdento6721]

Why does binding energy increase going from heavy to light Or going from light to heavy?

[@muskaanmemon8475]

Nicely explained, thank you! Can you cover the Medical Physics section and Telecommunications for A level physics as well?

[@michaelschwartz9485]

I had a hard time understanding something and after watching this video I get it! Thank you very much, love your channel.

[@hasan7241]

Why does the neutrons and protons come together by using energy up but when it comes to seperating we have to put energy in ? Cant they use even more energy up to seperate and the mass decreases even further

[@AlexUnder_BR]

Theres is any website or app that allow us to produce an spherical representarion of what that MeV energy would look like? 🤔

[@wildeofthewest]

So the energy released in fission/fusion is equal to the increase in binding energy?

[@marxregis]

Excellent explanation sir!

[@ahussain6255]

i love you for making this video

[@paulwilson6886]

Very clear - thanks!

[@jonathannogushi5325]

6:37 I thought you Times by 1.6x^-13 to convert to joules but you said divide plz correct me if I'm wrong

[@ScienceShorts]

Yeahhh :(

[@jasonwiley798]

Does He-2 exist in nature ? If so, it would mean that the binding force between to nucleons is greater than the em repulsive force between protons.

[@ScienceShorts]

Nope!

[@lhtj-vj2gd]

do we calculate mass defect the with the same formula in nuclear fission and fusion reaction?

[@RAFAELSILVA-by6dy]

Excellent!

[@silviamomanyi4169]

Am ready for tomorrow's exam☺️...thank you so much

[@jesur8888]

Thank you for this well done video! I’m not sure if it was covered but how do you calculate the potential energy between two points with a known mass number? Could you point me to a resource as well? Thank you!!

[@amidaleahmad1324]

Thank you for your lecture that made me sure for my knowlage was correct but I was not fulent now I am . 👌👌👌😍😍

[@jarrydvrcic9959]

Why does the total binding energy increase in fission?

[@jellybabiesarecool4657]

I feel big brain when watching these videos.

[@MuhammadAfzal-tk9xl]

Why do we take C12 atom to calculate atomic masses when FE56 is the most stable element in the periodic table???

[@BaBababa-hy6vv]

Some resources don't include electron and some includes it, I'm confused now. We are talking about the nucleus right? Therefore electron is excluded?

[@ScienceShorts]

Depends on whether the question is regarding an atom or just nucleus. It's usually the latter.

[@khadijaway]

I'm giving you a huge thuumb. Amazing sir Thank you 😌

[@vapel5038]

shouldn't there be less binding energy after fission, since you have less nuclei bound together?

[@lf7857]

Binding energy is the energy need to separate or 'unbind' the nucleus. The release of energy in fission creates more stable nuclei, so the total binding energy increases (as the new nuclei are 'harder to unbind'). Hope this helps

[@louistheodorou4290]

L F thank you, I didn’t understand that either

[@artinllazani4754]

@@lf7857 Thank you to this day

[@babyoda1973]

I love it it help me teach my daughter

[@Real_Alien]

This guy is better than Einstein

[@Aryansh]

Thankx bro

[@Mahar4ja]

Why are helium nuclei unusually stable for their number of nucleons?

[@ScienceShorts]

It's because they are as closely packed together as nucleons can be - every nucleon is touching the other 3.

[@Mahar4ja]

@@ScienceShorts what about deuterium or tritium? A proton and neutron, and a proton and 2 neutrons respectively they should all be in significant contact. Is it because each particle has its own individual attractive and repulsive forces hence you want to maximise particles at the point they are all touching? In that case would deuterium and tritium be right below the helium nucleus in the graph?

[@ScienceShorts]

They're all touching, but they're not touching as many nucleons, so lower binding energy.

[@fatmafaizal07]

Hello, have you uploaded a video on Medical Imaging?

[@7490maddie]

Thank yooouuuuuuu

[@abdulkarimalburayh5807]

wonderful!

[@SadiqunhnabiChoudhury]

When we talk about the mass of an atom, dont we just consider the protons and neutrons, why have you added the u value of electron?

[@ScienceShorts]

Sometimes a question will ask you to take into account the mass of electrons, sometimes they won't.

[@lukeflipzz4319]

great video

[@JassaTableTennis]

in aqa 1u is 931.5?

[@MikeDu-it9wl]

Does that mean that the whole universe will finally become a bulk of iron, which is the most stable state?

[@tazmaniac1991]

Why does the binding energy increase if energy is released?

[@ScienceShorts]

+Tania Remember that binding energy is almost like 'negative' energy - it's the energy needed to 'unbind' the nucleus. Therefore, if energy is released, that must mean that the particles are now in a power energy state, meaning that it will now take more energy to break them apart. So that means binding energy has is increased :)

[@dandan321321321]

He sounds like professor X, the young version.

[@ZAsym]

thanks!!

[@zedvance6205]

great video :)

[@protestant6258]

Can you explain how did E = mc(square) has been came up?

[@ScienceShorts]

It's an application of the relativistic energy equation (basically an equation which tells you the *total* energy something has), subtracting the kinetic energy. This leaves you with rest energy.

[@Andrea-es5te]

Thanks bro

[@MONA-im3uq]

Is this in As level syllabus?

[@JC-lu4se]

U238 fissions, does it?

[@ScienceShorts]

Nope - 235. I lied.

[@JC-lu4se]

@@ScienceShorts We all lie a little. Good video BTW.

[@soulesswanderer2452]

this is interliantful

[@Ben-vg6ox]

I wish I found your channel sooner

[@teyneyto]

I understand how mass is lost during fission but I'm confused on how the mass is lost during fusion

[@ayushadhikari3352]

Love yah♥️

[@ZMDD2017]

the voice is kinda makin me feel like im being lectured by Bradley James

[@rishistavray3622]

God bless u

[@amtheman2000]

i thought to get u to mev it was times by 931.5 not 931.3 :/

[@ScienceShorts]

Depends who you ask - it's even changed in the formula sheets the last few years. Check with yours in the exam.

[@amtheman2000]

yh just checked on the first page of aqa it says under u that its equivelent to 931,5. thx

[@amro_khleifat]

In my book , u=931.5 mev c-² , to find the equivalent energy in mev multiply by c² , but u didn't multiply by c²

[@ScienceShorts]

It's confusing when they write it like that, no doubt. By writing the unit like this, this is essentially saying that this is the mass in MeV. To make it clear: mc2 = 931.5MeV, so that means m=931.5MeV/c2

[@namename3130]

Physics isnt helping itself as a field of study when it does things like defining binging energy as the energy required to sepparate. It serves no purpose to define it that way round and just makes the subject harder to learn.

[@joshvir262]

Less than 2hrs before exam

[@lallib.3968]

Empire joshvir262 same

[@Josh-fc6sx]

Just noticed your bleeding finger, hope you're okay 7 years later 😭

[@mikehanzmariano790]

i feel like im in heaven.... .the light is too much hehe.....btw this is helpful

[@namename3130]

'Before using unlearn i was stuck on Cs eXspecially in economics'

[@KINGSOMALIA]

You adding electrons in the beginning might confuse a few students, especially as we only really care about the nucleus mass and not the entire atom's mass.

[@ScienceShorts]

Sometimes it appears in questions, and I specifically address it.

[@benno23126]

Sorted

[@the_hasnat]

Mr Rees, PIN THIS It's 931.5 not 931.3 (6:19)

[@ScienceShorts]

It changed - your value is correct now.

[@tiger-tet8701]

the book says that 1u=931.5 not 931.3

[@ScienceShorts]

Used to be 931.3.

[@FLAMEalan]

i hope you are blessed with 10 beautiful wives, 10 sheeps, 10 acres of land and 10 million unpaid servants

[@rj23032]

Lighting

[@fredkirk7881]

931.5