• Question: how strong is gravity

    Asked by 007geeck to Lynn, Kevin, Jessica, Jade, Andrew on 22 Jun 2015.
    • Photo: Jess Wade

      Jess Wade answered on 22 Jun 2015:

      The strength of gravity depends on the size of the objects. Gravity is a strong pull between anything with a mass. If we were standing next to each other, we’d feel it a little bit. Sitting on my chair now I feel a gravitational attraction to my chair, but neither of us is massive so we don’t crash towards each other. Because the world is so big and heavy, it pulls us and the moon towards it. The sun is even bigger, and that pulls all of the 8 (poor pluto) planets towards it). the gravitational force is proportional to the mass of both of the things that feel it, and inversely proportional (divided by) the distance between the masses.