• Question: if light isn't a gas liquid or solid what is it?

    Asked by TheChosenOne to Angela, Claire, Ian, Robert, Sarah on 13 Nov 2014. This question was also asked by agatha window, Ian21.
    • Photo: Ian Cade

      Ian Cade answered on 13 Nov 2014:


      well, its… light which is it own thing (the universe is not just made from gasses, liquids and solids… there are, supercritical gasses, plasmas etc too).

      In more detail, light is made of particles called photons, that have no charge, have a spin of 1 and move at the speed of light.

      They are the force carrying particles for the electromagnetic force (for example, when two negatively charged electrons repel each other this can be described as them exchanging photons)

    • Photo: Angela Stokes

      Angela Stokes answered on 16 Nov 2014:


      Hi TheChosenOne
      Can’t beat Ian’s answer.

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