Edexcel Unit 3 (IAL): Exploring Physics, WPH03 (11th May 2016)Watch
I've attached a pdf containing all the experiments that you need to know. Although I find that learning the experiments from past papers is much better, because the information in the pdf is very vague imo.
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Ok there isnt uncertainty in apparatus its in the reading so for example if u measured 50cm using a metre rule (precision 0.1cm these are fixed values for different appratus look them up) so if u have to calculate percentage uncertainty u would do 0.1/50 multiplied by 100% to get %age uncertainty hope this helps if i said sth wrong others plz help