Physics sig fig question (AQA)Watch
On the Unit 4 AQA Jan 13 paper
Q1b)ii) and Q4b)ii) I worked out the correct answer and I rounded to 2sf since that's the lowest SF value used in the calculations. I got 2.7 and 4.7 for the 2 questions.
The markscheme accepts 2.6(6) and 4.6(7). So surely you'd round up in each case. Am I missing something here as to why they only accept the rounded down answers?
Thanks for the answer! Would I be best off writing my answers to several sig fig then writing to 2/3 sf or should I give the 2/3 sig fig answer immediately after calculation?