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. ...

Save guides, add subjects and pick up where you left off with your BBC account. Grams (g) and kilograms (kg) are used to describe measurements of mass. Grams are used for smaller or lighter items.