Newton figured this number out through lots ... But that doesn't work once you leave the ground. Out in space, a kilogram is still a kilogram, because it's a measure of mass - how much stuff ...

Gravitational field strength (g) is measured in newtons per kilogram (N/kg). The Earth's gravitational field strength is 9.8 N/kg. This means that for each kg of mass, an object will experience 9. ...

On Earth, the force of gravity on a one-kilogram mass is ten Newtons. So, if my mass is 70 kilograms, then the force of gravity on me makes my weight 700 Newtons. As the chair and I fall ...