Just started AS Physics and I'm confused at the first lesson! Thank you so, so much for posting this. I can see you have a lot of other videos which will be really useful this year!
***** Yeah I've seen questions like that. I think for some questions you have to figure out the charge of an entire ion, including the electrons. But there are some questions where you only need to calculate the specific charge of the nucleus.
You can ignore the negative sign in front of the electron charge. All it means is that the electron is negatively charged so if you were using it in a calculation you would just write the number 1.6 ×10¹9. Same reason why the proton has no negative sign infront of it, as its positive
Actually aqa as book at page 4 says that the charge of proton is +1.60x10^-19 C and that of electron is -1.60x10^-19 C while formula sheet says that the charge of electron is 1.60x10^-19C. I am confused at this. Could you please help me with this
It is not really different, the layout is just clearer and there are minor modifications due to course changes but almost identical content to previously.
It is a term in the British education system, literally means "Advanced Subsidiary". 16-18 year olds (if done straight after compulsory education) do A-Levels, the first year is AS, set of exams at the end. Second year is A2 exams. It is just a physics course, pre-uni level broken down in to two years. As you can probably guess from that, specific charge knowledge is tested in AS exams :)
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These vids are genuinely the best you'll find, thanks
Just started AS Physics and I'm confused at the first lesson! Thank you so, so much for posting this. I can see you have a lot of other videos which will be really useful this year!
***** Yeah I've seen questions like that. I think for some questions you have to figure out the charge of an entire ion, including the electrons. But there are some questions where you only need to calculate the specific charge of the nucleus.
No problem mate, glad they're useful
I do, thank you. I have moved house and set up system again, I will do all the whole course in May hopefully!
Thanks so much I started my AS physics today and found your videos really helpful
You can ignore the negative sign in front of the electron charge. All it means is that the electron is negatively charged so if you were using it in a calculation you would just write the number 1.6 ×10¹9.
Same reason why the proton has no negative sign infront of it, as its positive
Can you please do one video for specific charge of an ion . thanks
The video was quick and easy to follow. One of my quick revision videos for As Physics :)
This was incredibly helpful. Thank you. Im an AS physics student and this cleared it up.
you sir are a legend
Your amazing, please make more videos like this. It helped a lotttttttt
What if you need to find the specific charge of a whole atom do you include the electrons?
Sam Kerr Yeah could've done with that 5 months ago xD
Thanks alot for your videos
Well helpful , thank you
How do you calculate the mass of an atom if all you have is the specific charge and negative charge?
Actually aqa as book at page 4 says that the charge of proton is +1.60x10^-19 C and that of electron is -1.60x10^-19 C while formula sheet says that the charge of electron is 1.60x10^-19C. I am confused at this.
Could you please help me with this
***** It isn't off, it's just telling you that the charge of an electron is -1 relative to the proton.
isnt charge of an electron -1.6x10^-19 and however you considered it postive
Fraidoon Jami for specific charge think of the charge as a
just a quantity as opposed to + or -
Yes it's wrong, he completely ignored the minus sign. Terrible
It doesnt matter. For specific charge we only need to consider charge as a quantity
You legend
Will we get a formula sheet like that during our exam or must we remember the numbers.. Please answer!=}
You will get an even better formula sheet!
Oh really, How come?
It is not really different, the layout is just clearer and there are minor modifications due to course changes but almost identical content to previously.
Is it available on the internet and if so could you tell me what it is called
AS is filestore.aqa.org.uk/resources/physics/AQA-7407-SDB.PDF
what does AS mean
It is a term in the British education system, literally means "Advanced Subsidiary". 16-18 year olds (if done straight after compulsory education) do A-Levels, the first year is AS, set of exams at the end. Second year is A2 exams. It is just a physics course, pre-uni level broken down in to two years. As you can probably guess from that, specific charge knowledge is tested in AS exams :)
This is wrong, charge of an electron is negative and you just ignored it.
Obviously!