1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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

    Delphi51

    User Avatar
    Homework Helper

    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.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook