# Physics Ideas

• ## Equilibrium conditions: concept, applications and examples

The equilibrium conditions are required so that a body remains at rest or in uniform rectilinear motion. In the first case, the object…

• ## Atomic model of Democritus: antecedents, characteristics, postulates

The atomic model  of Democritus was the first to introduce the idea that matter consists of indivisible basic elements called “atoms”. In fact, the…

• ## Free body diagram: how to do it, examples, exercise

A free – body diagram, isolated – body diagram, or force diagram is a diagram in which the forces acting on a body are represented by arrows. Be sure…

• ## Electric potential: formula and equations, calculation, examples, exercises

The electric potential is defined at any point where there is an electric field, as the potential energy of said field per…

• ## Faraday’s Law: formula, units, experiments, exercise

The Faraday’s law in electromagnetism establishes a change in the flow of the magnetic field can induce an electric current in a…

• ## Pleiades: history, origin and composition

The Pleiades are an open cluster of stars visible to the naked eye in the night sky in the constellation Taurus. The…

• ## 13 examples of Newton’s second law in everyday life

In  Newton’s second law , known as the Fundamental Principle of Dynamics, the scientist states that the greater the mass of…

• ## Wave phenomena: characteristics, types, examples

The phenomenon of waves occurs when waves propagate in a medium and encounter other waves, with changes in the environment, borders, gaps…

• ## Viscous friction (force): coefficient and examples

The viscous friction arises when a solid object is moved through a fluid or gas – liquid – a. It can be…

• ## Stress effort: formula and equations, calculation, exercises

The tensile strength is defined as the area perpendicular to the force per unit area applied to an object to engage…