9 responses

  1. Peter Fischer
    April 3, 2012

    For a particular mass, the weight (force) on the moon is less than on earth since the mass of the moon is smaller than the mass of the earth. A person weighs therefore less on the moon. I would call this lighter, not heavier.

    Reply

  2. David
    May 10, 2017

    Isn’t the definition of matter elementally wrong. Because photons have mass and they’re not constructed of matter.
    Is not mass more correctly described as a force that pushes against and causes deformation of space-time. Matter has mass, because places pressure on space-time and energy. Energy in motion places pressure on space-time and matter.

    So wouldn’t that mean space has mass?? Since it places pressure on matter and energy.

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  3. Rehan
    March 9, 2018

    You wrote matter can be seen and mass can’t be i.e.,

    “In terms of features, matter can be seen while mass cannot.”

    while you defined mass as ‘matter in a particular space’ i.e.,

    “mass” is defined as “something that represents the amount of matter in a particular space, particle or object.”

    I’m confused as to how can mass have matter (which can be seen) and mass can’t be seen.

    Reply

  4. Andy Temming
    February 2, 2019

    Mass equals matter.

    Reply

  5. Ijaz
    September 5, 2019

    You wrote matter is anything that occupies space and has mass
    And
    Also defined mass that
    Amount of matter in a particular space
    So than I want to ask what is matter than you will reply anything that occupies space and has mass
    Than if I ask you that what is matter
    So you will again reply that
    Anything that occupies space and has mass
    So i don’t get it that what basically
    Mass and Matter are please reply

    Reply

  6. Ijaz ahmad
    September 5, 2019

    In the definition of matter there was mass word used I don’t get it
    Than i was wondering to know what is mass
    When i saw the definition of mass again you say that The amount of matter
    Now i want to what matter and mass really are i am so confused please reply

    Reply

  7. Tibor Berenyi
    November 30, 2019

    To me, nothing in this discussion answers the question. The problem seems to be that “matter” is not well defined. “Mass” is defined in physics either in terms of acceleration or gravity. Even there, a distinction has to be made between mass and rest – mass. If the word “matter” is used, the discussion leads to some useless circular confusion.

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  8. AKHILJITH S S
    January 20, 2020

    Mass and matter are different names of a same substance. Light also occupies space and it contains particles called photons. That means light is also a substance that contains matter and therefore contains mass.

    Reply

  9. George is Smythe.
    April 29, 2020

    Since mass is a particular area of space measuring 1 kg what makes it different from mother

    Reply

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