• Question: what will be the fate of a glass of water pouring in to another glass of water during staying in the moon? will it have an effect?

    Asked by zaraa to Bob, Katie, Nisha, Sallie, Vee on 29 Jun 2012.
    • Photo: Sallie Baxendale

      Sallie Baxendale answered on 29 Jun 2012:

      The moon’s gravity is much less than the earth. In fact it’s so weak that it hasn’t been able to hold on to its own atmosphere. It has a very low escape velocity – this is the speed needed to break free from the gravitational field of an object in space, without further propulsion. Although it is very weak, the moon does have some gravity so if you kick a football it will go much higher and take longer to come down. I think with a glass of water it would just take longer to pour, but you would be better asking a physicist.

    • Photo: Vee Mitchell

      Vee Mitchell answered on 29 Jun 2012:

      Interesting question to which I had no idea – like Sallie I thought the lower gravity would just effect the spped of the water’s flow. Have looked this one up and apparently the water would disintegrate/evaporate immediately due to the moon have no atmosphere. So the water would never hit the glass.

    • Photo: Bob Bonwick

      Bob Bonwick answered on 2 Jul 2012:

      Yup Vee’s answer is the same as mine in effect. I asked a friend who does physics type science and she said it would either boil to evaporation or it would freeze solid depending on it’s proximity to the moon itself.

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