In physics, dynamics is the branch of classical mechanics that is concerned with the effects of forces on the motion of objects. The former distinguishes it from kinematics and the latter distinguishes it from statics. In quantum physics, dynamics may refer to how forces are quantized, as in quantum electrodynamics or quantum chromodynamics. This article needs additional references or sources for verification. ... Classical mechanics is used for describing the motion of macroscopic objects, from projectiles to parts of machinery, as well as astronomical objects, such as spacecraft, planets, stars, and galaxies. ... In physics, a net force acting on a body causes that body to accelerate; that is, to change its velocity. ... This article or section is in need of attention from an expert on the subject. ... In physics, kinematics is the branch of classical mechanics concerned with describing the motions of objects without considering the factors that cause or affect the motion. ... Statics is the branch of physics concerned with physical systems in static equilibrium, that is, in a state where the relative positions of subsystems do not vary over time, or where components and structures are at rest under the action of external forces of equilibrium. ... Fig. ... Quantum electrodynamics (QED) is a relativistic quantum field theory of electromagnetism. ... Quantum chromodynamics (abbreviated as QCD) is the theory of the strong interaction (color force), a fundamental force describing the interactions of the quarks and gluons found in hadrons (such as the proton, neutron or pion). ...

Branches

• rigid body dynamics
• soft body dynamics
• fluid dynamics
  • hydrodynamics
  • gas dynamics
    • aerodynamics

Rigid body dynamics differs from particle dynamics in that the body takes up space and can rotate, which introduces other considerations. ... Soft body dynamics is an area of physics simulation software that focuses on accurate simulation of a flexible object. ... Fluid dynamics is the sub-discipline of fluid mechanics dealing with fluids (liquids and gases) in motion. ... Hydrodynamics is fluid dynamics applied to liquids, such as water, alcohol, oil, and blood. ... A gas-dynamic control system is one where the path of an object in flight is controlled by either the generation or redirection of gas flow out of an orifice rather than with the traditional movable control surfaces. ... This article does not cite any references or sources. ...

Elementary Principles

• Variational principles and Lagrange's equations
• Two-body central force problem
• Rigid body (in kinematics)
• Small oscillations
• Hamilton's equations
• Canonical transformations
• Hamilton-Jacobi Theory

A variational principle is a principle in physics which is expressed in terms of the calculus of variations. ... Joseph-Louis Lagrange, comte de lEmpire (January 25, 1736 – April 10, 1813; b. ... In classical mechanics, the two-body problem is to determine the motion of two point particles that interact only with each other. ... In physics, a rigid body is an idealization of a solid body of finite size in which deformation is neglected. ... In physics, kinematics is the branch of classical mechanics concerned with describing the motions of objects without considering the factors that cause or affect the motion. ... Oscillation is the variation, typically in time, of some measure as seen, for example, in a swinging pendulum. ... Sir William Rowan Hamilton (August 4, 1805 – September 2, 1865) was an Irish mathematician, physicist, and astronomer who made important contributions to the development of optics, dynamics, and algebra. ... In mathematics, a symplectic manifold is a smooth manifold equipped with a closed, nondegenerate 2-form. ... The Hamilton-Jacobi-Bellman (HJB) equation is a partial differential equation which is central to optimal control theory. ...

Other fundamental engineering topics

• Analysis of resistive circuits
• Engineering economics
• Fluid dynamics
• Heat transfer
• Materials science
  • Strength of materials
• Statics
• Thermodynamics

It has been suggested that this article or section be merged into Circuit analysis. ... Engineering economics, previously known as engineering economy, is a subset of economics for application to engineering projects. ... Fluid dynamics is the sub-discipline of fluid mechanics dealing with fluids (liquids and gases) in motion. ... In thermal physics, heat transfer is the passage of thermal energy from a hot to a cold body. ... The Materials Science Tetrahedron, which often also includes Characterization at the center Materials science is an interdisciplinary field involving the properties of matter and its applications to various areas of science and engineering. ... Strength of materials is materials science applied to the study of engineering materials and their mechanical behavior in general (such as stress, deformation, strain and stress-strain relations). ... Statics is the branch of physics concerned with physical systems in static equilibrium, that is, in a state where the relative positions of subsystems do not vary over time, or where components and structures are at rest under the action of external forces of equilibrium. ... Thermodynamics (from the Greek θερμη, therme, meaning heat and δυναμις, dunamis, meaning power) is a branch of physics that studies the effects of changes in temperature, pressure, and volume on physical systems at the macroscopic scale by analyzing the collective motion of their particles using statistics. ...

External links

• Basic Dynamics for Robotics