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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 |