Atomic Models

Atomic models are the structural aspects of atoms that have been presented by scientists in an attempt to better understand the atom and its composition. Read More >>

Ohm Laws

The Ohm Laws , postulated by German physicist Georg Simon Ohm (1787-1854) in 1827, determine the electrical resistance of conductors. Read More >>

Mechanical Energy

Mechanical energy is the energy produced by the work of a body that can be transferred between bodies. Read More >>


Electric current designates the orderly movement of electric charges (electrified particles called ions or electrons) within a conductive system. Read More >>

Energy sources

Energy sources are raw materials that directly or indirectly produce energy to move machinery, transport, industry, commerce, agriculture, houses, etc. Read More >>

Thermal expansion

Thermal expansion is the variation that occurs in the dimensions of a body when subjected to a temperature variation. Read More >>


Thermodynamics is an area of physics that studies energy transfers. It seeks to understand the relationships between heat, energy Read More >>

Measurement Units

Units of measurement are models established to measure different quantities such as length, capacity, mass, time and volume. Read More >>

Water Properties

Water has special characteristics that allow life on the planet, among them, its great ability to dissolve substances, as well as containing organic Read More >>