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Scalar and vector

  1. Jan 9, 2009 #1
    what are the differences between scalar and vector quantities???
    why do we use */-in specifying direction of any scalar quantity
  2. jcsd
  3. Jan 9, 2009 #2


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    You should find the answer to this by looking up the definitions of scalar and vector.
    The second sentence doesn't make any sense to me. You will see what I mean when you read those definitions!
  4. Jan 11, 2009 #3
    I think that the second sentence may be refer to scalar quantities such as temperature, where you can have +10'C but also -10'C.

    In a case like this, the signs don't declare the "direction" of the temperature - just its value on a scale with reference to an agreed zero point.
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