Physics Measurement Unit

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Physics Measurement Unit

Post  aqalieh95 on Tue Dec 14, 2010 5:59 pm

Metric Prefixes Quizlet(You only need to know nano, micro, milli, centi, kila, mega, and giga
The Seven Fundamental Units:

  • Length - meter - m
  • Mass - kilogram - kg
  • Time - second - s
  • Electric current - ampere - A
  • Thermodynamic temperature - kelvin - K
  • Amount of substance - mole - mol
  • Luminous intensity - candela - cd
Error

  • Random Error - Errors that are introduced because of the thing being measured, and is different for each trial -ex. you can't measure a room with a meterstick without some error
  • Systematic Error - Errors that are made by the measuring instrument, and is the same for each trial - ex. bent ruler
Accuracy and Precision

  • Accuracy: How close a number is to an accepted value, the real value
  • Precision: How close a measurement is to similar measurements

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Metric Prefixes Quizlet

Post  man987 on Mon Dec 20, 2010 11:39 am

The Link to the Prefixes study guide.Click on the word Prefix to go and test your self, these are all the once even not the bold once.
Here this only the prefixes you need to know
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