Naming organic compounds

An understanding of vectors is essential for an understanding of physics. A vector is a quantity that has two aspects. It has a size, or magnitude, and a direction. In contrast, there a quantities called scalars that have only size.

Although there are several scalars quantities (mass, time, temperature), we need vectors to explain many physical quantities (velocity, acceleration, force, momentum, moment...)

Physics (from φύσις (physis)  is a Greek theological, philosophical, and scientific term usually translated into English as "nature").  is the science of matter and its motion, as well as space and time —the science that deals with concepts such as force, energy, mass, and charge. As an experimental science, its goal is to understand the natural world.
Chemistry (from Egyptian kēme (chem), meaning "earth" is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.

Electromagnetism is the physics of the electromagnetic field: a field which exerts a force on particles that possess the property of electric charge, and is in turn affected by the presence and motion of those particles.

First we will study some basic concepts of Electrostatics. Then, we will continue with the electric current and circuits. The last lesson will be focused on the relatioship between electricity and magnetism.

A física (grego φύσισ (phisis), realidade ou natureza) é a ciencia da natureza ou dos fenómenos materiais. Estudia as propiedades da materia, da enerxía, o tempo, o espacio e as súas interaccións (forzas). Neste curso poderás atopar material complementario de axuda para comprender mellor algún dos conceptos da materia de Física en 2º de Bacharelato.

Physics and Chemistry involve the measurement of different properties. At the end of this lesson you should be able to know what is a physical quantity and how to express its measurement.