Gravity

• Gravity –

  Causes the force of attraction between any two objects with mass.
• It is the force between two large objects which attract other forces of mass, pulling everything to the centre.
• Gravity acts everywhere in the universe, not just earth.

  It can only pull, not push.

  It acts in the centre of each object.
• On earth, the gravitational field strength is approximately 10N/kg = 10m/s2

  Weight (N) = Mass (kg) * G.F.S (N/kg)
• Weight is a downward pulling on an object due to gravity. It is measured in Newtons (N). Can change depending on where you are.
• The strength of gravity (gravitational field strength or G.F.S) changes on different astronomical bodies (moons, planets, etc.)