Gravity: A force of attraction between objects due to their mass.
Earth graviy is 9.8 m/s2
Force=mg
Object has attraction to another object.
Gravitational force weakens as the distance btween two masses.
When the mass and mass is near it has bigger gravity than when it is far.
Free fall:When gravity is pulling it down and no other forces are acting on it.
Earth pulls the Moooooooooooon!
It means Moon orbits the EARTH!
Satellite orbit th Earth.
By the Eath's gravity the satellite is not going forward.
It is going arch form.
http://www.youtube.com/watch?v=EloTDXsjRQY
