Question

What was the name of the tool discovered 2700 years ago, which was used to standardize precious metals?

A) The Balance Scale
B) The Microscope
C) The Protractor
D) The Abacus

Answer 1

The name of the tool discovered 2700 years ago, which was used to standardize precious metals, is The Balance Scale. It is a double-pan mechanical balance that was used to compare different masses.

Step-by-step explanation:

The name of the tool discovered 2700 years ago, which was used to standardize precious metals, is The Balance Scale. It is a double-pan mechanical balance that was used to compare different masses. An object with unknown mass was placed in one pan and objects of known mass were placed in the other pan. When the bar that connects the two pans was horizontal, then the masses in both pans were equal.