The weight of a body is the force with which it is attracted in the direction of the centre of earth. When an object is stationary with respect to the planet, its weight equivalent to the gravity. This weight of the object is known as its static or true weight.

We become conscious of our weight, in that case when our weight is opposed by some other object. Generally, the operation of measuring the weight of a body with a weighing machine lies in the fact that as we place the body on the machine, the weighing machine repulses the weight of the object. The reaction of the weighing machine to the body gives the calculate of the weight of the body.