We explain what mass is and how this magnitude can be measured. Also, some examples and their relation to volume.
What is dough?
Mass is a scalar quantity and commonly used in the physical and the chemistry, which expresses the amount of matter in an object or body.
It should not be confused with the weight, which represents the intensity with which a body is attracted to a gravitational field, nor with the amount of substance, which in chemistry designates the proportion of substances that make up a compound.
Mass is an important variable in the calculation of numerous relationships and interactions in all scientific fields, which is why it is part of most of the mathematical formulas that describe them.
All objects have a mass, whether they are in the state solid, liquid or gaseous. The more atoms there is in a body, the greater then its mass.
It was long held that the amount of mass in the universe was uniform and invariable, since the mass, as well as the EnergyIt cannot be destroyed or built, but reduced to its most elemental components, what was long believed to be atoms.
All matter is made up of various atoms of a finite set, but organized in different ways. However, thanks to Einstein's studies and the development of quantum physics in the 20th century, today we know that atoms can “break” and that part of their masses is transformed into energy, as described by the famous formula of Relativity: E = m. C², where AND is energy,m is mass andc the speed of light.
How is mass measured?
The International System of Weights and Measures (abbreviated SI) maintains that the unit for measuring mass is the kilogram (kg), together with its derived units such as the gram, milligram, etc. To measure the mass of a body, scales are used, either the traditional pan or the modern electronic ones.
Examples of dough
The mass of most objects can be calculated in several ways. You can deduce the mass from its movement Y acceleration, or its gravitational attraction, or through instruments. Thus, we have calculated the masses of:
- Sun. 1.9891 x 1030 kg.
- Saturn. 5.6846 x 1026 kg.
- The earth. 5.9736 x 1024 kg.
- Moon. 7.349 x 1022 kg.
- An unmanned commercial airplane. Around 178,000 kg.
- A sports car. Around 1000 kg.
- An astronaut suit. 130 kg.
- An average 30-year-old man. 73 kg.
- An old television. About 30 kg.
- A poodle dog. 15 kg.
- A bicycle. About 6 kg.
- A hammer. More or less 1 kg.
Mass and volume
Both mass and volume are general properties of matter, but the latter refers, instead of the amount of matter in a body, to the amount of physical space it occupies.
The volume is usually calculated by submerging a body (solid or gaseous) and measuring the increase in the level of the Water, so your drive measurement The standard is the cubic meter (m3) although it is also usual to use liters (l) or milliliters (ml).
For liquids, simply pour them into a graduated container.