what are the measure of the earth's gravitational pull on an object knows as ?
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On land, devices called gravimeters measure the Earth's gravitational pull on a suspended mass..
This famous result means that if we know the mass of an object on the surface of the earth, we will know how much pull the earth is exerting on it, that is, we will know its weight in Newtons (N).
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Its weight is determined by the degree to which gravitational force acts on it. On Earth an object whose mass is 100 grams is pulled towards the centre of the planet with a force of 1 Newton. This is said to be the 'weight' of the object (i.e. the downward force it exerts because gravitational force is acting on it).
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