All your videos are absoulutely amazing and saved my A-Level, I've started rewatching all of them. Just wondering what % of the A-Level would you say you have covered and have you gone over all the required practicals?
Thank you! There's not a lot I teach on top of what's covered in the videos (I don't do any of the other AQA optional topics), apart from the odd little bits of knowledge missing, like metastable states, for example - but this is stuff that's easy to check on with the spec. So I'd say I've covered ~95% of the course. The important thing to do is answer questions to improve your exam technique and pick up on the subtleties the exam board look for in your answer.
I have been doing some practice questions my teacher has set me, however due to the new reformed A levels there is only 1 past paper and 1 specimen available. Any advice on how to aid my revision even further?
you can do papers of other exam boards then regarding the topics you choose, if you have only one specimen and 1 past paper then that wouldn't be enough for the revision as u can get a bunch of differently asked questions that can be really tricky, Idk but I would do that if I was in your shoes. idk for how long this comment has been here I just thought that my reply might help in a sort of way
I have a question: When you made the equation for the youngs modulus :- E =FL/A x extension, why didn't you take a constant k because in hooke's law we had a constant while forming an equation F = k(x) Please clear this for me as I am really confused. Thankyou.
@@moodymonstrosity1423 you only need k when trying to calculate an extension by a force, in this you already have the force and the extension so k is irrelevant
You dont need to know this, but in simple terms: The graph doesnt take into account the changes in surface area when the strain increases. So that little dip in stress is just due to the area increasing while the wire is extending.