GCSE Physics - Radio Waves #65 

Ha 😑

LOOOOL

Thanks h k, glad you like them 👍

You’re very welcome - cheers for for the support!

It is

Aha thank you for the support! Good luck with all your work 🥳

Cognito why

No

Could you please explain to me how radiowaves are made as it did come up in a GCSE exam question last year

Could you also make a video of conservation of energy and such laws cause i find them really confusing...making a video of them will grately benefit me... Thank you

Hey Trinox thanks for the support - nice suggestion and noted :) might be a little while though haha

If you have Bluetooth headphones or a speaker you can just play it on YT while you work :) Unless you mean so you can do other things on your device, in which case I’m sorry I’m dumb

@@wolfgirl28 very smart tbh

@@abelblesson886 true

Aw thank you so much, we really appreciate it 🤩

1. They have to directly transfer from transmitter to receiver because they don't have much range. 2. An object gets in the way because it loses its strength because it goes A to B meaning it doesn't curve or anything it just goes straight through objects and the stronger insulator it is the more it loses its signal like going through paper wouldn't make a huge difference to most waves apart from ones with very short frequency such as gamma rays but lead will stop pretty much all waves if not bent around.

@@rhyspounder9199 you are legit a lifesaver

Having watched it again, I can see (from your diagram) what you were trying to do, but this does not come across in the script. The problem is, of course, that we don't want to start GCSE students worrying about modulation. I think that your diagram hints at it - somehow you are going to put the 800 Hz wave into/onto (modulate) the higher frequency carrier wave. Then, the person who receives the carrier wave uses their receiver to strip off the added waveform (demodulate) and examine it... This is part of the frustration of much of the modern GCSE Physics syllabus: it gets tantalisingly close to being useful/relevant but then cuts off at the point where it might make some sense! (Compare also the mind-bending use of LDRs to control lamps in potential divider circuits, all because transistors are no longer on the syllabus. There are some crazy ideas appearing in textbooks and revision guides that attempt to make sense of this, rather than accepting we have a point in the circuit where the potential rises and falls according to the light level... which we can utilise with the right device, as long as it draws negligible current.) Sorry, I'll shut up now!

@@stustjohnneek

@@rocketfuelwithagun anything helpful to contribute?

That's awesome 👍

couldn’t be me

Yes, hedeserve it

But I think if i can, i will let him have 5 million subscribe

Since you aren't using them for monetary gain, it's probably fine. (Although you're probably past the point where you need an answer.)

@@ME0WMERE yeah 😭 thank you tho

@@GottaGrind lol yh i probably did 😭

@@GottaGrind yhh i finished a levels too

It's very useful

a lot of oscilliscopes nowadays have built in signal generators, and yes while I agree it's good to be specific, this level of detail probably isn't required for the exams at GCSE

next video

Put speed up. I watch with 1.75 or 2 times speed

6g.

Why are you crying?

hahaha hes so good

ikr i acc learn more stuuf from him than my teachers

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