Before we get into the subject of gravity and how it actions, it's significant to realise the distinction between heaviness and mass.
We often use the periods "mass" and "weight" interchangeably in our every day talk, but to an astronomer or a physicist they are absolutely distinct things. The mass of a body is a assess of how much issue it contains. An object with mass has a value called inertia. If you agitate an object like a pebble in your hand, you would observe that it takes a impel to get it going, and another impel to halt it again. ...