GCSE Physics - Intro to circuits #14
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- čas přidán 27. 05. 2024
- In this video we cover:
- Some components commonly used in circuit diagrams
- What's meant by the term 'potential difference'
- What's meant by the term 'Current'
- What's meant by the term 'Resistance'
- Which way around a circuit current flows
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom
Hey cognito can you add Cambridge physics to your website if you can thank you
You've just taught me more physics in 3 minutes than my teacher has in a whole term
Same
Same😂
same
Fact
FR
You just saved me from reading for over 3-4 hours to undersand this topic. You made it INCREDIBLY EASY TO UNDERSTAND, you are a lifesaver, thank you sooooo much! ❤️
thankyou some much for such a simple explanation that really made sense. I’m struggling to understand it at school and you really cleared it up for me. My gcse physics are all because of you...
Thanks Jaycee, glad they've helped 👍
👍
I think I might do well in physics now thanks to these videos. Thank You!!
Hey shining!! Great to hear you’re finding them helpful 🙌 little and often I’m sure you’ll smash it :)
I just wanted to say thank you for the hard work you put into this video I was literally crying because I couldn’t understand Current electricity but I came across this video and I now understand and I am ready for my test tomorrow so thank you and keep it up
Ah thank you so much, really glad to hear the video was helpful 😊
Been cramming 5 gcses in 6 months after taking a year's break. Gotta finish everything for the summer exams getting preferably 7s for maths and physics. You might save my life. You make everything sound so simple. I am eternally gratefull.
You’re very welcome - really happy you’re finding the vids useful 👍
whos here because your teachers set us work here ?
Kyzick paha
Kyzick yep
Kyzick yep
Pain
yuuuuuuuup
this been valued within this time of isolation thank you
This convention ruined an entire week for me.
I was studying chemistry and the topic was how ores are extracted and purified / refined . I had kept the convention in the back of my head that current flows from the positive terminal to the negative terminal and I thought that electrons flowed from the anode to the cathode.
I read the whole chapter and made the notes. Then in the end I was all confused because the physics of the ions just didn't make any sense. I researched a lot and then I found this video. I really appreciate your effort. Thankyou from the bottom of my heart ❤️.
3:29
I found this video by accident and it might have just saved my GCSE physics, THANK YOU!
Tysm cognito you’ve saved me so many times in the past year pls make more videos they’re genuinely so helpful
I'm here because I have an exam, anyone else?
me 2
Yes😅
here because i did no work last half term and i need to understand this
stupid ass lmaoooooo
but for real good luck
Bruh same
u have literaly saved my mocks and my life I love u so much
This is so helpful the fact that i have a test in 3 hours is still haunting me
1 hour left, 0 revision done, am i cooked
may God bless you bro, tomorrow is my phy sendup and i have done 60% the rest i will do from your videos.
Thanks man for upload these videos
at the end for the exam part didnt you mean that you should just remember that currents flow from the negative terminal to the positive terminal
Thank you for these videos! I was unclear about some of the topics before and I think I'm confident now!! :)
Glad we could help! 😊
Wow! Thank you very much!
This was really helpful! :)
Thanks for leaving us a comment! Really happy to hear it helped :))
Wow! You actually replied, this is amazing! 😊
Anyways, I should thank YOU guys for making free-learning accesible for everybody in CZcams, you are the real heroes, and probably many people have understood some concepts thanks to your videos.
Keep up the good work, and have a nice day!
Btw, how did you come up with you channel name, I still don’t get it?
Nice
Thank you sm!! One thing that i was confused on was when you said the shorter line on a cell diagram is negative. I remembered my teacher telling me it was positive and negative was the longer line. Other than that, i think you video is great and it will help me a lot for my stressing exam tomorrow!
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uh so im gonna just jot this down..
the information in the video is correct, since that is what the gcse physics book has in it-
if that what ur teacher said then you might wanna confirm again
thanks Cognito for all the gcse video ☺️ theyr’re easy to understand and high quality!!!!
Thankyou, glad you're enjoying them 😊
you explained it so well this helped a lot thank you so much
cognito the goat of online teaching
The best most comprehensive and easy video found on utube regarding olvel physics
This guy be saving lives
Who's here cause they got a big test tomorrow and your teacher didn't teach you anything 😂
meee
thank you so much this cleared up literally everything for me
i only slept during my physic class and now i have exam tomorrow and i don't know shit about anything, you literally saved my life
Great video - keep up the great work. Huge help!
Thanks Ali 😊
My man literally the best
I ain’t reading any stuff, this is part of my revision
LISTEN, THIS VIDEO SAVED MY EXAMS
What does the IGCSE cambridge physics esam uses? Conventional current or the other one
this channel is officially the best channel ever
I'm a little bit annoyed by the whole "it goes from positive to negative" thing. I don't really understand how after they disproved that theory they still kept it. Imagine if other areas of science did the same thing, like if astrophysicists decided to keep the geocentric model just because it was used in the past
Me too, i’m confused on why we are learning the wrong thing and have to approve of it
hey you're videos are great youre like an upgraded version of free science lessons, but id like to ask if u can make a vid or reply instead as to how to stay motivated to study and how to study effeciently, and if its possible to add exam style questions in ur vids thank you
Here's two things you need for motivation:
• somewhere you wanna be (e.g get a great grade like a 9 so you can have the revision skill to get great a-levels and you can get into a great university so you can get a great job so you can live a satisfying life happily and died happy)
• and somewhete you don't wanna be (get a average or bad grade e.g 4 then you don't have the work ethic to get a good a level or you may have to resits back tracking your life by a year then you don't get into a good university you parents are disappointed you get a mediocre job you don't like you and then your just sad)
Hope that helps to motivate you 😊
@@rabbitman8535 lmaoooo tyyy
@@serenalty lol no problem
freesciencelesssons will always be a g tho
@@js06v obviously
I am here cause of our online class btw im Yakup if u see that SiS
well done good job sir
Earned a Sub! such a good explanation
Thank you very much for making this video it was very helpfull
Is this for edexcel or aqa, or both?
thx soo much
:) i understand
Clear and concise
why is the cell/battery depicted differently in the start and end
I have a test today and slept in and this is the only studying I'm doing for the test✌️
Many thanks
Thank you for help😊😊😊😊😊
Thank u😊
thank you sooo much I have a physics end of term exam tommorow and this makes it so much easier to understand
Thank you
Thank you so much thx for explain I got A+ in physics thsm
i thought you used 9-1 at GCSE? and even at A-Level wouldnt it be A* not A+
2:27 (in short) resister 'changes' the flow of current.
❤❤❤❤❤❤❤❤❤❤❤❤thank you so much for helping my b
THESE VIDEOS ARE SO AWESOME LOVE THIS OMG!!!! XOXO
thanks
thanks to u i got 7 A stars.
It’s suppose to be all connected in the circuit all the wires must touch the switch batteries and lightbulb or it is considered as a open circuit
banger!!!!
:)
my teacher uses this channel so often that i recognise the voice ahaha
How do you work out can you help 😊
I thought that in my exam It would be like negative to positive...Well I guess you were right. Soo...heres a like and thx
If current actually flows from the negative terminal to the positive terminal, why do we learn it the other way around?
i don't understand, why do we need to say that the current flows from positive to negative when it actually doesn't? I have my nationals in physics tomorrow and im so confused-
this might be a bit late but when benjamin franklin rubbed a tube with a cloth and touched it, he discovered static electricity, he assumed that the static forms when the electrons from the tube is in contact with our hand which has no electrons. After this discovery, battery brands changed the negative and positive symbols on the sides according to his discovery. but joseph thompson found out that when the tube is rubbed by the cloth, the cloth takes away the electrons from the tube, so it has no charge, when a human touches the rod they get static electricity because their electrons are transferred to the rod. but because most battery brands already made everything according to benjamin franklin's theory, nobody changed the design of the battery to the correct way which was negative -> positive. so every battery brand still labels the sides wrong, the positive and negative signs need to be switched in order to be factual. this battery design is called conventional theory. so when you're drawing a battery with a circuit, you should draw the electrons as if they come from the positive side to negative, but when they ask you to answer in words as to where the current flows from and to, it should be negative to positive. so, the drawing of positive to negative because of the battery is labeled as conventional current, which almost everybody uses to draw. i hope this answered it.
@@kinapindeesebichok
U teach better than my teacher 😭
Mr G sent me here
I’m so bad at science, all of them. Uh oh
Have O levels July series physics exam in less than 7 hours🤧
how did it go?
🐐🐐🐐🐐🐐
in 1:03 the two cells are not connected together so there is no battery it's a big mistake
ahhh i'm even more confused
very clear thankyou
i agree it is clear
Im doing this for science
Same
who needs teachers we have this guy 👍👍👍🎉🎉🎉
Great video! Help with circuit symbols @
topper
OMG U MADE IT SO EASY
U said current flows from negative to positive then switched ur answer im confused
Hi Yusuf, what we’re saying is that in reality, electrons flow from the negative terminal to the positive one, but due to historical convention, exams expect you to write that current flows from the positive terminal to the negative. Hope this helps :)
@@Cognitoedu bruh thats so confusing :C thankyou for explaining it
@@Cognitoedu is there a reason they kept this convention, besides simplicity?
@@manyabhanti9197Not that I know of to be honest.
thank you so much that's helped me a lot and wit my English too thank u the best ++++++++++
Thank you so much
How is the resistance related with current?????
V=IR
How did you make your youtube profile picture?
ohms law v=ir
@@TWStimesGOOGLE
I’m in grade 7 and learning this what about you?
Tell here
lol i'm in grade 10 we learn this stuff 😂
@@Khushi-qo6qx my cousin also learned it in grade 10 that’s I was asking
I guess I’ll study college stuff in grade 10 😆
@@savagex_2008 i am in grade 9 and learning this looooooooool
@@savagex_2008 why do you say 'grade 10', its 'year 10'
Tomorrow i have an exam
Who's here cause they have a test tomorrow
me
My dad forced me to do revision b4 next lesson
Who’s from de la sale ?
Anyone have there gcse today and have no clue what there doing
Who has a caie on 13 may lol
These diagrams are just wrong for me.
I like it more legit
Taking online classes
Who else
thanks