Mediciones: mediciones de masa

The video tutorial explains the concept of matter and mass, highlighting that everything is made of matter. It introduces mass as the amount of matter in an object and discusses how mass is measured in units like milligrams, grams, and kilograms. The tutorial demonstrates the use of a scale, specifically a triple-arm balance, to measure mass. It explains how to achieve equilibrium on the balance and calculate the mass of an object by adding the weights from the balance's bars.

Describe how a triple-arm balance works.

Calculate the total mass if you have 100g, 40g, and 45g.