Sunday, June 19, 2011
4.2
4.2
Thermal (heat), electrical, light, sound, chemical, nuclear, kinetic and potential (elastic and gravitational) are 8 types of energy.
Energy in objects can change.
For example:
In a spring driven car to car moving
The types of energy: Kinetic -> elastic -> kinetic + sound + thermal
Sunday, June 12, 2011
Exam Corrections- Things to Remember:
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
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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