All of AQA Magnetism and Electromagnetism Explained - GCSE Physics 9-1 REVISION

This video is a summary of all of AQA Magnetism and Electromagnetism, explained for GCSE Physics 9-1. You can use this as an AQA Magnetism and Electromagnetism revision tool.

The magnetic field around a permanent magnet loops from the north end to the south end and can be represented using field lines. If the field is stronger then the field lines are closer together. The magnetic field around a current-carrying wire is circular and we use the right-hand thumb rule to determine its direction. A solenoid acts like a bar magnet.

The motor effect: A current flowing in a magnetic field will produce movement. We use Fleming's left hand rule to determine the direction of movement. Thumb = force/movement, first finger = magnetic field and second finger = current.
The generator effect: A moving wire in a magnetic field will produce an electric current. This is very similar to the motor effect and again, we use Fleming's left hand rule. There are two types of generator: an alternator (AC) and a dynamo (DC)

The force of a magnetic field is given by: force = magnetic field strength x current x length of wire, F = BIl.

Transformers are used to step up or step down the potential difference of the National Grid. Vp/Vs = np/ns and Vp x Ip = Vs x Is.

Thanks for watching,

Lewis

Relevant for GCSE Physics 9-1 in the following exam boards:
AQA (including Trilogy)

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[cxg]

Here before all the other yr 11s rush to revise two weeks before GCSE, if any one is watching this in yr 10 or below. Trust me exams come before you even realise they are there just revise long term what's going to help you? A controller or a text book. Just revise, use your time wisely

[mog]

i definitely find this the hardest unit in gcse physics but this helped sm thankyou!

[hesk]

This is amazing, thanks I was having a lot of difficulty getting this into my head.

[kate.-]

Thank you so much i loved the way you explained this, especially how magnetic fields, current and motion are linked that really helped me understand how motors and generators work.

[walidyt]

i wanna tell you are the second best teacher in you tube i wish you the best of luck thank you so much.

[invisiblehuman]

Thank you so much for the help!! I have my p15 module test coming up and this is what’s stopping me from getting to an 8. But I feel so much more comfortable on the content now!! Also random question: what pens do you use? because they look lush

[ethandavies]

this guy may top freesciencelessons, ive just learnt more in 12 minutes than 3 months

[malikahhussain]

Very easy to understand better than reading some revision work keep it up thanks

[naja]

very helpful thanks, could you do any videos on the motor effect please or terminal velocity

[someone]

A million times thank you for LITERALLY saving my exams

[psd]

Video was very helpful!😁
Thanks for giving me knowledge in a beautiful way❤️ . Can you please give lessons on topic "light " too. Light chapter is in our course curriculum CBSE. But I can't understand anything as in india, we are not taught how and exactly what a thing is! They just make us gulp the text written in the book. I know it will take a lot of effort to make a video . But please help sir🙏 .
Respect your knowledge !

Regards,
Pranav Sharma

Hope. You will reply👨‍🏫 my best teacher❤️

[mariehill]

Hi, I have question if two coherent sources produce waves which are 180 degrees out of phase, what is the possible value for the path difference of the two waves when they meet at a point of constructive interference if the wavelength is lamda?

[barry]

I am really confused on how Fleming's left hand rule works, in the example you were using you showed the current going in an awkward position but i was unable to tell where the current was going, the only thing i could tell was the magnetic field, would appreciate if you answered as fast as you could, I have a test today, thanks.

[veisnthere]

gotta thanku i have some hw due in a couple of hours
:)

[marysongclub]

Thank you so much, it really helped a lot!

[joelh]

not related to magnetism but in the radioactivity topic, do we have to know how a beta particle is formed? By the way, these videos are really helpful!

[rishmiyeah]

watching this on the morning of my exam👍🏾👍🏾

[ui]

Where did you purchase those bar Magnets from? Do you have a link?
BTW, that transformer made from Lego looks amazing.

[Magicfingersmaxwell]

I'm the only year 11 here so far the day before the exam in 2024

[adamchadderton]

is there a decent website where can I purchase magnets etc for my classes (I have no technicians)