Snell’s Law

The Snell ‘s law in a formula used to determine the relationship that exists between the path taken by a beam of light crossing the boundary or the surface of separation between two contact substances and the refractive index of each of they. This law was discovered in 1621 by the Dutch astronomer and mathematician Willebrord Snell . Snell’s account of the law was not published until Christiaan Huygens mentioned … Read more

Universal gravitation law

The universal law of gravitation is a physical law that was formulated by Isaac Newton in his book Philosophiae Naturales Principia Mahematica , which was published in 1867 and which describes the gravitational interaction between different bodies with mass and the quantitative relationship of the force with which two objects with mass are attracted. What is the law of universal gravitation? It is the law of … Read more

Kinetic energy

The kinetic energy has always been present in our daily lives in different ways. This is generated through the acceleration of a body until reaching an indicated speed . The adjective “kinetic” is given to this type of energy because it is generated through movement . Unit:  July Symbol:  J Formula:  Ec = ½ mv² What is kinetic energy? Kinetic energy or energy of motion is that produced … Read more

Potential energy

The energy potential that characterizes certain forces is described by their potential energy . This notion of potential can be associated with a field that represents properties of space or / and a long-distance action . A particle, placed at a point in space, will be charged with potential energy, proper to the potential of the place and a movement will … Read more

Centrifugal force

The centrifugal force is the apparent force when it swings out of a dough. You can think of a ball at the end of a string being twisted, or the outward motion you feel when turning a curve while riding in a car. In an inertial frame , there is no external acceleration since the system is not rotating. The ball or your body simply moves in the straight … Read more

Centripetal force

The centrifugal force is found every day and in every moment of our daily life. We experience it when we turn a corner in a car or when an airplane leans into a turn are typical examples of it. Some people may mistake centripetal force for its counterpart, centrifugal force, because they are so closely related. However, they are different, … Read more

Centripetal acceleration

The centripetal acceleration , is the property of the movement that has a body that traverses a circular path . The acceleration is directed radially toward the center of the circle and has a magnitude equal to the square of the velocity of the body along the curve divided by the distance from the center of the circle to the moving body. The force causing … Read more

Coulomb law

The Coulomb ‘s law was formulated by the French physicist of the eighteenth century Charles-Augustin de Coulomb , and is analogous to the law of gravity of Isaac Newton . Both gravitational and electrical forces decrease with the square of the distance between objects, and both forces act along a line between them. In Coulomb’s law, however, the magnitude and sign of the electric force are determined by the electric charge , rather than the mass , of … Read more

Hooke’s law

The Hooke ‘s law refers to the law of elasticity which was discovered by the English scientist Robert Hooke in 1660, which states that for relatively small deformations that occur in an object, the displacement or size of the deformation it is directly proportional to the deformation force or load. In these situations, the object returns to its original shape and size by discarding the load. The elastic behavior of solids according to Hooke’s … Read more

Joule effect

The Joule effect is a term commonly used to refer to any of the different physical effects discovered or characterized by the English physicist James Prescott Joule . These physical effects are not the same, but they are all occasionally referred to in the literature as the “Joule effect” or “Joule law . ” These physical effects include: Joule’s First Law, a physical law that expresses the relationship between generated heat and current … Read more