1. Always check and re-check, the accurate plotting of points and their line on a graph.
2. If you read a question and you don't understand it, before moving on, write down "Everything that you know" and then see if you have enough information to answer the question.
3. The units for acceleration is m/s^2
4. An AMMETER measures current, it doesnt change it.
5. Voltmeter is parallel.
6. The time taken for a each wave is period.
7. The law of reflection is i^=r^
8. the equation that relates critical angle and reflective index is: sin i^ = 1/n
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