Physics A Level Practical Exam
Here are some tips for tomorrow’s Physics Practical Exam from my Physics teacher:
- Always take repeats and averages
- Use correct heading and units on the table
- Always leave a spare column on the table just in case
- Use the same significant figures for you answers as you did for the data used to calculate them
- Give time to 2 d.p. if possible even if error is greater
- Add errors rather than fiddling and trying to multiply, its too complicated and you don’t have to
- When measuring the gradient use at least half of your line of best fit
- Make sure you cannot double either of the scales on your axis
- Set it out as clearly as possible to make it easy for the examiner
- When it comes to the question asking whether it is proportional the answer doesn’t matter so long as its consistent with the data
- Points for evaluation:
- 2 points of data are not enough
- do repeats
- put white card behind experiment
- dye any liquid
- close windows
- Use a fiducial mark
- minimise parallax
- Use datalogging N.B. Must say sensors (e.g. Light gate)
- Plot a graph