Meaning of Mechanics

What is Mechanics:

Mechanics is the science studies the movement of bodies under the action of the participating forces.

In physics, theoretical studies on the mechanical behavior of objects, such as in the classical mechanics, relativistic mechanics and quantum mechanics it is important to understand the dynamics of the world around us.

See also Quantum mechanics.

The application of knowledge about mechanics has helped in the construction of structures with mechanical movements facilitating the life of man. These studies are covered, for example, in the mechanical Engineering and in the automotive mechanic.

Both for the study and for the application of mechanics, one must know the principles of mechanical energy as the force that will propel a mechanism.

Mechanical solidarity, on the other hand, is associated with societies whose division of labor is equal for all, contrary to organic solidarity.

See also Mechanical and Organic Solidarity.

branches of mechanics

The principles of mechanics apply to the following areas or subdisciplines:

  • relativistic mechanics, mechanics of celestial movements or celestial mechanics: studies the behavior and displacements of stars and celestial objects such as planets, their moons and the sun that move at high speeds in space and time. It is related to the Theory of Relativity of the physicist Albert Einstein.
  • classical mechanics or mechanics of ordinary objects on Earth: focuses on objects whose speed of movement is less than the speed of light, applying to almost all bodies that exist on Earth. Classical mechanics is based on Newtonian mechanics where gravity is introduced along with mass and motion as the core concepts of area.
  • Quantum mechanics or quantum field theory: it focuses on phenomena at the microscopic level, that is, it analyzes the behavior and electromagnetic radiation of matter on an atomic and subatomic scale.
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See also:

  • Relativity
  • Speed ​​of light
  • Branches of physics.

Classification of mechanics according to Kirchhoff

The German physicist Gustav Robert Kirchhoff (1824-1887) classified mechanics into two general groups: kinematic mechanics and dynamic mechanics.

  • The kinematic mechanics or also called geometry of the movement studies the movement of the physical bodies as geometric bodies without taking into account the relations with the laws or their causes. The study of kinematics involves two types of objects:

– Rigid solids: objects whose molecules (elementary particles of a mass) maintain a constant distance despite the force exerted.

– Elastic solids: bodies that change their internal structure by applying a greater or lesser amount of force on it.

  • The dynamic mechanics focuses on the movement of bodies considering the laws and their causes. They are subdivided into:

– kinematics: the study focuses on animated objects considering the force of acceleration.

– Statics or balance science: studies the uniform and rectilinear movement of bodies at rest or animated.

See also Suspension.