A balance is a tool for weighing objects or something.

1. Balance is a tool for weighing objects (mass), and it belongs to measuring instruments. Balance is an instrument that uses gravity acting on an object to determine the mass of the object or determine other values, parameters or characteristics as a function of mass.

2. The balance is a tool for measuring the mass of an object based on the principle of equal arm of a lever. Balance is a weighing instrument made according to force balance or moment balance.

3. The weighing methods of the balance include direct weighing, decrement weighing and weighting.

4. Note: ① The balance can't weigh hot or wet objects with a load exceeding 1/2, but can weigh objects at room temperature; (2) balance in the process of measuring, can't move at will.

5. The commonly used balance includes mechanical balance and electronic balance.