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!

Mass and Weight

  1. May 21, 2009 #1
    Sorry for the unoriginal question but what is the differnece between mass and weight? Its been bothering me lately :frown: Does mass change? What exactly is mass?
  2. jcsd
  3. May 21, 2009 #2
    Check wikipedia:
    So your weight on the moon is less albeit your mass is the same.

    What is mass?
    Mass is the m in [tex]F=m\cdot a[/tex]
    And Mass is what causes gravity.

    Mass is where the search ends, we haven't discovered some inner mechanism that produces it.
  4. May 21, 2009 #3
    What do the veriables mean in the formula?
  5. May 21, 2009 #4


    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor

  6. May 21, 2009 #5
    Thanks zapper :smile:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook