Question

State the working principle of a beam balance. State 2 characteristics of a true beam balance

Answer 1

Explanation:

A beam balance works on the principle of moments according to which in equilibrium, the anti-clockwise moment due to the weight of an object on left pan of the beam is equal to the clockwise moment due to the standard weights on the right pan of the beam

For a beam balance to be true, there are two major points to be remembered. 1) Both the arms of the beam balance that is the left and the right arm must be of equal lengths. 2) Both the pans or base on which the weights are to be measured must be of equal weight.