As you all know, physics practical is next Tuesday, 3/11/2009. And here's our timetable.
All the best!
Oh, since we're on about Physics Practical, here are a few things to remember:
1) Uncertainty for time is 0.2/0.1; for length, is 0.1cm if you're taking two readings to count the measurement, like from 0.00cm to 19.00cm. Voltmeter, depends on its division, if 1 division is 2V, uncertainty is 1V then. Same goes for ammeter.
2) Raw data normally 3 s.f, or follow the uncertainty decimal point. If raw data is 3 s.f, then calculated value should also be 3 s.f.
3) If the graph is a straight line, minimum 6 readings; if it's a curve, minimum 8 readings.
4)In the table, recording the data, please remember to write the unit beside the quantity. For Eg. T/s, l/m, F/N
5)Always remember to take 2 readings, and get their average during taking of measurements.
6) If you have no idea what to put in the limitation, please remember there's always this answer:
Two sets of readings is not enough to support the theory/conclusion.
Improvement: More sets of reading should be taken and an appropriate graph should be plotted.
7) Graph should be at least 3 quarter of the page.
8) When gradient is calculated, please draw a big triangle on the graph. The bigger, the better.
I think that's all from me, if you guys have any more tips and helps, feel free to comment or post it or something lah.
All the best!!!
wei wen
EDIT: Better don't bring handphones unless you have someone to keep it for you. Handphones are not allowed even in quarantine.
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