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iphysics.1
Physic vocabulary and unknown words part 1
| Key Term | Meaning |
|---|---|
| Physics | The study of the workings around the world |
| Derived units | combining seven base units with multiplication or division ex: m/s = meters per seconds |
| calibrated | how is the measurements is set up |
| precision | closeness of two or more measurements with the same instrument and/or how repeatable measuring is |
| accuracy | closeness of a measurement to actual value |
| method error | when measurement are taken different ways for the same purpose |
| parallax | seeing a measurement different fro different angle |
| instrument error | when the instrument used is not working |
| significant figures | all valid digits in measurements |
| errors | disorder of numbers due to rounding and method used error= actual measurement-experimental measurement |
| mistake | problems arise due to blunders caused by carelessness and inattention to details |
| experimental value | the measurement taken during the experiment |
| actual value | the true measurement of the item |
| percent error | how off you are to true value in a percent =(calculated error)/ actual value*100% |
| scientific notation | expressed numbers with decimal places as power of 10 |
| exponents | superscript on how many times a number is multiplied to itself |
| mantissa | the base number within scientific notation |