OCR A PHYSICS FROM 2015

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  • Created by: parrot16
  • Created on: 27-02-16 19:28

   Base units and quantities

  • A physical quantity is a property of an object or of a phenomenon that can be measured
  • The 7 SI base units are-
  • length, m
  • mass, kg
  • time, s
  • electric current, A
  • temperature, K
  • amount of sunstance, mol
  • luminous intensity, cd

The prefixes are:

  • peta, P, 10 to the power of 15
  • tera, T, 10 to the power of 12
  • giga, G, 10 to the power of 9
  • mega, M, 10 to the power of 6
  • kilo, k, 10 to the power of 3
  • deci, d, 10 to the power of -1
  • centi,c, 10 to the power of -2
  • milli, m, 10 to the power of -3

Comments

Prestige Revising

Where's the questions of vectors?

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