Reuploaded to fix mistake I made when I tried to fix a mistake on the log graph that I made when I tried to fix a mistake on the log graph that I tried to fi-
It's also helpful to know for the log graphs, if you go half way up, like you said it being roughly 3 (it's 10^½) and if you go 3/4 of the way up, it's roughly 5.6 (10^¾) Our teacher didn't teach us this at all so for the mocks I just had to use intuition
Can you please make compilation videos from the paper walkthroughs for specific topics, e.g All electricity questions from AQA papers 2016-2022 love your work
They do seem to change their mind a lot, but more often than not, it's a whole. Even if the mark scheme says only one thing, you will get the mark either way. Trust me, I've had several conversations with AQA over the years about this.
Why is the uncertainty for a digital equipment equal to its resolution rather than half? I know you said halving it is more justifiable but I want to know how AQA do explain it?
Just asking, but I heard that aqa do topics in a 3 year cycle, so I've gathered all the topics that come up for 3a, should I mainly focus on the ones that could come up(drill these topics & be confident) or focus on everything but be weaker at everything
i was told by my physics teacher that in physics when coverting into y=mx+c form using logs, you should use the natural log in physics over log base 10, as apparently its what is usually in the mark scheme if they havent told you to do it in log base 10 instead of natural logs, is this true ?
I saw this too and i was confused, however, if a digital ammeter only reads values up to 1 decimal place that second decimal place is rounded up or down to fit the 1dp accuracy. This causes inaccuracy. So in an analogue ammeter it wouldnt round any values as your the one reading the value off the ammeter so you can clearly see if the pointer is inbetween any 2 values. Also, i remeber someone mentioning how you can mark with a peice of paper certain reading on the analogue so that u can go back to them and write them down, however with a digital ammeter you cant store values so you might miss and be inaccurate with ur values if ur time interval is small. Hope that kinda made sense, PERSONALLY i would still pick a digital ammeter.
For example, when you need to record the time when a measurement reaches a certain value, like when doing capacitor decay. As the needle is constantly moving, you don't have to wait for a number on a screen to change to know you've reached a value.
