Gravitational & Electric Fields - A-level & GCSE Physics

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scienceshorts.net Re-uploaded due to a couple of mistakes!
Please don't forget to leave a like if you found this helpful!
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00:00 Field lines
01:56 Newton's law of gravitation & Coulomb's law
03:28 Potential energy
04:31 Field strength
07:09 Potential
09:45 Potential gradient & graphs
11:48 Parallel plates
12:59 Field strength inside planet
13:36 Field strength between masses
15:01 Resultant potential -
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Пікірлер: 190

@israelakinsanya3421 2 жыл бұрын

Respect you a lot love your explanation Buh you didn't teach escape velocity

@ScienceShorts 2 жыл бұрын

I gotchu kzfaq.info/get/bejne/qM6npaaV3NuqlIE.html

@namename3130 2 жыл бұрын

@@ScienceShorts When you say W = FxD, and therefore you potential energy is the force formula times r... how do you reconcile that the force isnt constant? Surely it would be W = mean force times distance and therefore the mean value of GMm/r² between 0 and r times r? Does it work out the same?

@namename3130 2 жыл бұрын

@@ScienceShorts Nm it works out the same

@frankdimeglio8216 Жыл бұрын

@@ScienceShorts WHAT IS E=MC2 is taken directly from F=ma, as the rotation of WHAT IS THE MOON matches the revolution; as TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. c squared CLEARLY represents a dimension of SPACE ON BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). The stars AND PLANETS are POINTS in the night sky ON BALANCE. Great. It is proven. WHAT IS E=MC2 is taken directly from F=ma, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME (AND time dilation) ON BALANCE. Consider WHAT IS THE EYE ON BALANCE. Great. Consider what is the fully illuminated (AND setting/WHITE) MOON ON BALANCE. WHAT IS E=MC2 is taken directly from F=ma. Great. TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). By Frank DiMeglio

@davidmanuwa8246 5 жыл бұрын

paper 2 grind now lets get it!!!!

@Davisstudiodev 5 жыл бұрын

Yh trying to revise the whole module 6 in few days :D

@themaher20000 5 жыл бұрын

is their even a point after paper 1

@Davisstudiodev 5 жыл бұрын

@@themaher20000 I'm guessing you did Ocr B

@themaher20000 5 жыл бұрын

Davis Studio i did edexcel

@chinmayvashishtha 5 жыл бұрын

never give up!!!

@luluhrvy 5 жыл бұрын

i was having a mini breakdown about fields bc my exam's in two days but thank you so much for this - it makes so much more sense now :')

@chinmayvashishtha 5 жыл бұрын

so true...

@Mk-hs6ro 2 жыл бұрын

what did u end up getting if u dont mind

@justaperson4656 2 жыл бұрын

my exam is this afternoon, wish me luck 🙏

@VietNguyen-dp5pv 6 жыл бұрын

i have awakened

@MinecowplaysMC 5 жыл бұрын

Anyone notice the 4 and 10Jkg^-1 when his hand went over them. The number stayed 😂

@ScienceShorts 5 жыл бұрын

Sshhhhhh...

@itzarsenal8467 4 жыл бұрын

Wtf

@richardstone5096 3 жыл бұрын

This is such a good video, learning these two together makes so much more sense than being taught it separately! Thank you

@BradleyTurmel 6 жыл бұрын

you are way better than my actual teacher, thanks for these great videos!

@blueicer101 4 жыл бұрын

This video makes everything so clear, linked and easy to remember. You make my favourite videos and save my understanding.

@ScienceShorts 4 жыл бұрын

Thanks! 😊

@tojizenin344 Жыл бұрын

Amazing job man!!! You made it so easy. Even after reading from the book numerous times this chapter was difficult to understand. Thanks a lot!!!!!

@cont1nental9 2 жыл бұрын

Well explained!!!This video is so clear and very helpful to revise the topics under gravitational and electric fields.

@btoombstertriesyt6532 5 жыл бұрын

Still think you should sell some shorts on your website... just saying m8 i'd buy them 👖

@ScienceShorts 5 жыл бұрын

Wish Teespring did them! Maybe I'll look into a supplier...

@btoombstertriesyt6532 5 жыл бұрын

@@ScienceShorts YES!

@claireoliver3952 4 жыл бұрын

You are amazing! The best video on this topic by far! Thank you so much!

@analiacabello2011 4 жыл бұрын

This is soooooo helpful! I understand these concepts now, you are an amazing teacher

@DDD-we1em Жыл бұрын

That is the clearest explanation I have ever seen. Thank you sir!!!!!!

@anais-rebekahcarbon8187 5 жыл бұрын

Extremely grateful for your videos. Great explainations

@ImadAl1 5 жыл бұрын

AQA paper 2 on friday, im having a major breakdown because i have to learn Grav + electric fields, Magnetic fields which is the worst, capacitors also trash, and then all of the nuclear stuff so id say im pretty screwed. but dw ill bring the grade boundaries down for everyone else

@kierandetheridge4177 5 жыл бұрын

Same lol, just started revising today. Left it way too late. Best thing I can recommend is to use www.physicsandmathstutor.com/physics-revision/a-level-aqa/ Check the "key points" slideshows and do all the questions you can in what little time we have left. Good luck :)

@ImadAl1 3 жыл бұрын

@@MAN_FROM_BEYOND idk why this is being replied to but so you know i fucked it😂😂😂

@ImadAl1 3 жыл бұрын

@@MAN_FROM_BEYOND if you had to say how well you did, how bad would you say you fucked it

@robbyandrews6318 3 жыл бұрын

What's YOUR NAME?

@robbyandrews6318 3 жыл бұрын

@@ziponomics Was the QUESTION answerable? THE QUESTION that WAS asked. Has it been slaved ANYONE CAN CREATE A PHYSICS QUESTION. IS THERE AN ANSWER? YES OR NO? IF SO I CAN UNDERSTAND IT BEING ON A TEST. IF NOT. HMMMMM.

@harrisonbennett7122 5 жыл бұрын

Much better than my actual teacher, thank you so much!

@Joel-zd1of 5 жыл бұрын

Wow that was really useful, thank you so much!

@floralynphea3400 6 жыл бұрын

Thank you! You're a really really good teacher!

@tabraiz7297 5 жыл бұрын

IDK Why people degrade their teachers , every teacher is hardworking in their on way . Stop this and appreciate everyone.

@TacBandit 5 жыл бұрын

Wrong

@AksamRafiz 5 жыл бұрын

Very wrong

@gamingputer 5 жыл бұрын

you must be a teacher

@thomaschongs3456 4 жыл бұрын

Say something stupid to my face and your gonna learn a lesson.

@rare-._ 4 жыл бұрын

He is right. Respect your teacher. Even if you can't understand anything from their lecture.

@ArsalanKhan-em4ii 7 жыл бұрын

Amazing explanations !!! Can You please add past paper solutions ? like the ones for CIE a levels and can you please add videos on practical papers like p3 , p5 in cie a levels Thanx

@robbyandrews6318 3 жыл бұрын

DO YOU REMEMBER WHEN THE MOVIE STARS WERE PAYING FOR GRADES FROM HARVARD. I DIDN'T GET WHY THE PEOPLE INVOLVED WHERE GOING TO JAIL. FK.... THAT SIT THERE ASS DOWN IN FRONT OF AMERICA AND MAKE THEM TAKE THE TEST. IN MY OPINION THAT WOULD BE PUNISHMENT ENUF. THEY WOULD LAFFFFFFC THERE ASS OFF.

@robbyandrews6318 3 жыл бұрын

Past paper solutions? Do you mean playgerise. Sorry I won't still someone's idea and pawn it off as my own. That would never happen. I don't want to be the Laphing stalk of the century like your goofy ass movie stars. Stars yeah right!

@robbyandrews6318 3 жыл бұрын

My papers?

@robbyandrews6318 3 жыл бұрын

Solutions. Okay

@noname-fp3kh 5 жыл бұрын

Great revision thank you i am currently preparing for the october exams

@majamittag9888 6 жыл бұрын

Great videos! Please could you add Kepler's laws?

@eleanorpeng7569 4 жыл бұрын

Thank you so much! Love the explanations :)

@lola100yearsago8 2 жыл бұрын

Hi Eleanor Peng

@thecustomadventures7719 2 жыл бұрын

Thank you for this video! Can you make a video for which quantities are scalars and vectors? For energy, field strength and potential, of multiple charges or masses, there are some trigonometry involved too, so I was quite confused. Thank you so much!

@jameseaster9259 4 жыл бұрын

These are amazing thank you

@ystoh133 6 жыл бұрын

Thank you so much! Had a hard time understanding from my prof.

@busyinverse4300 2 жыл бұрын

where did you end up?

@evilvoldemort123 4 жыл бұрын

Paper starts shaking but the 4 stays still (9:16)😂😂 And then 10:41

@itsYASHx 4 жыл бұрын

You're the best man🔥

@fatmafaizal07 5 жыл бұрын

could you add in the effects of sparking at the surface of a sphere as well? there are so many repeated questions on it and I don't get it... You're videos help a lot. Keep doing what you do. Cheers :)

@hi44098 5 жыл бұрын

I haven’t done questions on this but I feel like it will be painful 😖

@harrywilliamson5715 3 жыл бұрын

It is

@Anjali-ge5bn 4 жыл бұрын

Please do Field strength and potential graph! I do CIE A-level physics 9702, the graphs are a bit tricky. For eg- max speed in potential graphs.

@leonardowilhelmdicaprio999 3 жыл бұрын

Thanks,Mr Rees!

@Cricketlover-sc8fm 3 жыл бұрын

That 4 and 2 acting upon gravity 😂

@oscarjones7489 5 жыл бұрын

Genuinely appreciate these videos so much, thankyou!

@aak711 5 жыл бұрын

Love this....❤️

@ayeshashaikh4433 3 жыл бұрын

thank youuu so much!!

@xifongchristian1066 6 жыл бұрын

Hi, thanks for the video. I have a question. How come the work done in moving a particular charge is not scaled by -1/2 when integrating the coulomb force equation with respect to distance form the charged particle? I thought that E = f * delta(x) is only apllicable for a constant force? Thanks for your help (anyone who responds).

@charms_gaming 5 жыл бұрын

How would you work out the speed of the particle moving in the field?

@kabandajamilu9036 3 жыл бұрын

So educative sir

@rhysgriffiths4004 6 жыл бұрын

can you add some videos on aqa a level astrophysics optional unit

@shyamkotecha2695 6 жыл бұрын

RHYS GRIFFITHS We do medical physics tho...

@JustasTK 6 жыл бұрын

...and we do astro? what's your point lool

@tenparsecs914 6 жыл бұрын

J K1NG Lmao wtf haha

@ps0m362 5 жыл бұрын

Lucky people, we have to do turning points :(

@joshvir262 5 жыл бұрын

@@ps0m362 ouch

@TabuHamid-gj9pm 11 ай бұрын

Awesome 🎉❤

@tahirabegum5458 3 жыл бұрын

I could smell the coffee breath through the screen

@ScienceShorts 3 жыл бұрын

I hate coffee 😂

@stvnpham 3 жыл бұрын

Love your videos, absolutely life saver! I was just wondering though, when you kept saying ‘potential’ what did you mean exactly? Like, did you mean the Potential Difference? Or Potential Energy?

@Mozzie7920 3 жыл бұрын

Steven Pham I’m assuming he meant potential energy but I think he explained in the vid how they are pretty much the same thing

@kiransteward5387 4 жыл бұрын

For the electric potential at around the 8:00 point, wouldn't the equation change depending on whether the test charge and main charge were the same charges or different. If the test charge were + and the main charge was + then the potentials would start at a maximum at the surface of the main charge and decrease to 0JC-1 as work is done by the field to repel the +test charge so it would loose energy. Many thanks

@ScienceShorts 4 жыл бұрын

Yes - I wish I had explained that in the video!

@user-xz3xr5qt6i 4 жыл бұрын

Super useful

@bobafett5241 5 жыл бұрын

When adding up the potentials with different sources of electric fields, why are they not vector quantities? Is it because we are looking at the energy potential which is not a vector, its just a bit counter intuitive.

@sadiahrahman7161 2 жыл бұрын

v useful thank you

@7490maddie 5 жыл бұрын

Is there any chance of some medical physics vids before the exam? Don’t know how I’m gonna revise without these vids 😅😅

@safaesafae6041 5 жыл бұрын

thanks, sir.

@pathapativarshitha1780 2 жыл бұрын

Anyone here for 2022 Exam Prep!!

@Ben-ur8ys 2 жыл бұрын

Yep

@Cricketlover-sc8fm 3 жыл бұрын

Can u pls do a video on questions of Mechanics 🥺🥂that would be a great help ❤️

@aliaaatta8498 5 жыл бұрын

thank you for your great video but I am abit confused because why do you need external energy to bring a object from infinity to a certain point if gravity is attractive

@Jack-xg1ep 6 жыл бұрын

legend

@syedshah9843 2 жыл бұрын

I have to ask, do you speak whilst actually writing or do you do it as a voice over afterwards? Love your vids btw.

@ScienceShorts 2 жыл бұрын

This one? Both at same time.

@finbar970 6 жыл бұрын

Are you able to do a video on the exponential curve to do with temperature decrease, my teacher briefly went through it today but I don’t get it

@ScienceShorts 6 жыл бұрын

It's just like radioactive decay, but instead of rate of decay decreasing with nuclei, it's rate of energy loss decreasing with thermal energy.

@shroomjak200 3 жыл бұрын

Can f=eq be used for both radial and uniform fields?

@matthewwhite5462 5 жыл бұрын

im on here 1 hour before my exam good luck people

@dominikhuber6914 5 жыл бұрын

good luck me too ;D

@cherifs4542 5 жыл бұрын

Same, good luck

@dixitaryal7377 5 жыл бұрын

damn damn damn. amazing sir

@barryday9107 5 жыл бұрын

Interesting! Work done is Fr when the force is constant. As you do work against a gravitational field the force decreases. Wouldn't it be better to integrate F wrt r? That would also give a - sign that seems to be left out?

@ScienceShorts 5 жыл бұрын

This concept only crops up in the form of Fr graphs at A-level, and you find the area under the graph to find work done. Integration is no longer required.

@willowillotech7493 5 жыл бұрын

Wicked!

@LebenDootz 6 жыл бұрын

can you do a video on stationary satellites, thanks. Awesome teacher btw!

@momindoof 5 жыл бұрын

Geostationary satellites have a time period of 24 hours and are launched from the equator to an elliptical parking orbit where it remains in a fixed position, amplifying uplinks to downlinks across different parts of the world for live transmissions etc

@Tony770jr 4 жыл бұрын

Can the electric potential be substituted for mass thus negating the gravitational force?

@samyakshrestha17 Жыл бұрын

Could you pls make a video on hall's effect . It is really confusing chapter, all of us are having a problem with it. Thank you

@LozziLou6 4 жыл бұрын

Hello, I have an exam Q that says g is proportional to a body’s density and its radius but I thought it was /r squared. It says to multiply the density and radius to find the highest number that then equals the greatest g. Is this wrong? Help!!

@user-nk5qs8km3d Жыл бұрын

my brudda

@theonlyleg9822 2 жыл бұрын

What a guy.

@Mozzie7920 3 жыл бұрын

At 16:18 I don’t understand how that works and why in the first place you would do this calculation?

@jay524283 5 жыл бұрын

Drawing equipotential lines and dielectrics?

@A1C.170 3 ай бұрын

Hello sir, I was answering a question regarding gravitational potential energy and the gpe was negative and not positive. Why might this be the case? I got the answer right but the opposite sign is unclear.

@abiv5135 5 жыл бұрын

Hi, how do you calculate the distance R1 between Mass1 and the point where force is zero if you have M2 and the distance between M1 and M2 given?

@jewelbacani 5 жыл бұрын

Hi hope I can pop in and help 😊 If force at that point is zero, it means that the grav. attractive forces M1 and M2 exert at that point are equal and opposite. Distance M1 to the point = R1 So distance M2 to the point = total distance - R1 If we equal the grav force equations for both M1 and M2 at mass m at that point we get: GM1m/R1^2 = GM2m/(total distance - R1) ^2 Constant G and small mass m cancel, so we rearrange and get: M2/M1 = (total distance - R1)^2/ R1^2 Square root to cancel the squares and rearrange for R1.

@abiv5135 5 жыл бұрын

@@jewelbacani Thankyou!

@I3uzzzzzz 7 жыл бұрын

Will you be doing a2 videos?

@ScienceShorts 7 жыл бұрын

+EradicationX | Today This is A2...

@I3uzzzzzz 7 жыл бұрын

facepalm

@nahidalifazel9003 4 жыл бұрын

thats a greaaaaaaaat video

@abhinavnair3962 5 жыл бұрын

hey science shorts. great videos. in that last part of the video about the sum of potentials, i believe you forgot to mention that the potentials must be on the same plane...otherwise we must resolve on one plane and then add

@prahglaad6666 4 жыл бұрын

neeed more

@colin3998 Жыл бұрын

i love u sir

@productivity7587 3 жыл бұрын

so the gravitational field strength is less on me if I am at the top of a really tall mountain? If s, why is it a constant?

@ralfgoodman2556 3 жыл бұрын

As relative to the radius of the Earth the increase in your r will be negligible. So the change in g is negligible. g=9.81 at the surface of earth - it is not a consent we just treat it as one as in almost all cases in GCSE and A-level the change in r is so small relative to the radius of the earth it doesn't effect g. G is a constant however.

@tahasoomro8585 3 жыл бұрын

omg legend

@prahglaad6666 4 жыл бұрын

need more

@EKCPUNJAB 3 жыл бұрын

Sir, can you please xplain 13.35 for me.. It will be a great favor.

@ralfgoodman2556 3 жыл бұрын

When go through the earths surface the mass of the earth M can no longer be thought about so much as a point source, as the mass of the earth (for sake of simplicity at a level) we say is evenly distributed in the earths volume. Giving it a constant density. When the object which g is acting on is moving through inside of the earth this mass is now acting on it from multiple directions. When the object reaches the centre of the earth all the mass is evenly in every direction around the object and so the resultant force due to this mass is 0. Whilst moving away from this point g in relation to r becomes proportional, until your outside the earths surface when all the mass acts from the apparent point mass the relation of g to r is an inverse square relation.

@gushall7330 4 жыл бұрын

how do you work out resultant electric field strength between two particles

@ScienceShorts 4 жыл бұрын

Subtract them! Careful with + and -.

@gushall7330 4 жыл бұрын

@@ScienceShorts thank you

@sappy3441 Жыл бұрын

for aqa are we not ment to do kepler's laws ?

@ScienceShorts Жыл бұрын

Only 3rd law.

@Mozzie7920 3 жыл бұрын

16:17 why is total v = equal to the sum of potentials?

@gamingbraaa7698 2 жыл бұрын

Please tell me after one year you managed to find the answer

@gamingbraaa7698 2 жыл бұрын

I cannot find any explanation

@vapel5038 6 жыл бұрын

When you're going over the graph at 11:16 shouldn't the gradient just be g, since thats change in y over change in x, don't really understand how its g/E.

@ayo-nw 6 жыл бұрын

It's not g divided by E, it's *either* g *or* E, for two different graphs.

@vapel5038 6 жыл бұрын

oh nice, cheers

@humayunrashid8351 4 жыл бұрын

If energy is scalar then how can it be negative ?

@Chaos------ 6 жыл бұрын

Now where do these equations break down, its cool seeing them work, but Im more interested in seeing where they fail catastrophically.

@hi44098 5 жыл бұрын

Chaos black hole

@hardikb15 2 жыл бұрын

near black holes

@mushfek 5 жыл бұрын

Can you add some more paper please?

@ishtihaqtalukder1948 5 жыл бұрын

whats the difference between potential and potential energy?

@ScienceShorts 5 жыл бұрын

One is J, the other is J/kg :)

@irelyonshaft4990 Жыл бұрын

Wow.

@stephenhogg6154 4 жыл бұрын

Doesn't this imply that gravity can be measured in kg per meter squared?

@gw7223 5 жыл бұрын

3:21

@vjamie2280 2 жыл бұрын

How do u find escape velocity from a planet

@ScienceShorts 2 жыл бұрын

GPE = KE

@adityamisra8869 5 жыл бұрын

I got my A Level in 10 hours should I go to sleep??????

@7490maddie 5 жыл бұрын

Aditya Misra aaayy last minute cramming club

@adityamisra8869 5 жыл бұрын

maddie moo 😂😂😂 I’m not going to sleep until 3 AM. I’ve literally been only doing economics revision!

@7490maddie 5 жыл бұрын

@@adityamisra8869 oh no u poor thing, did it go okay for you??

@adityamisra8869 5 жыл бұрын

maddie moo it was alright paper 1 was easier for me. I do AQA

@AdzzVR 4 жыл бұрын

Paper 2 mock tomorrow 10hrs 45min to go... still have Capacitance and B-Fields to do 🤢🤮

@adityamisra8869 5 жыл бұрын

Escape Velocity??????

@mahdiyahabeeburrahman7943 2 жыл бұрын

Can someone explain why potential cannot be zero?

@sumayafelic1518 2 жыл бұрын

At infinite distance, it is 0. Since you can never be at an infinite distance, potential is always negative

@mua4046 2 жыл бұрын

to the distance aaaah?

@joshvir262 5 жыл бұрын

Last minute revision SQUAD!!! reply how u found paper 1

@chinmayvashishtha 5 жыл бұрын

neither good nor bad

@joshvir262 5 жыл бұрын

@@chinmayvashishtha the perfect answer I hated everything to do on Waves lol

@Jaggerrrr Ай бұрын

Had to pay real careful attention to your r's! They look too much like V's

@nicklegh-smith9948 7 ай бұрын

I think your explanation of going from force to potential energy by doing force times distance is wrong, because the force changes with r, so is not constant over the entire distance.

@ScienceShorts 7 ай бұрын

At no point did I say that the work done is equal to the force x distance moved. It's merely to show how the dimensions work out. If you see my subsequent videos, they clarify that it is the area under an F-r graph that gives work done.

@nicklegh-smith9948 7 ай бұрын

@@ScienceShorts I see, great video 👍