Mekanikk

Mekanikk is the branch of physics that studies the motion of bodies and the forces that cause or alter that motion. It analyzes how objects move, how forces interact, and how energy and momentum are transferred. Traditionally it is divided into statics (systems in equilibrium) and dynamics (systems in motion), with dynamics further split into kinematics (description of motion) and kinetics (causes of motion and its effects). Classical mechanics covers everyday macroscopic phenomena and is governed by Newton's laws, conservation laws, and variational principles. In more advanced topics, continuum mechanics treats solid and fluid media as continuous, leading to mechanics of materials, fluids, and solids.

Beyond the classical view, quantum mechanics describes the behavior of microscopic systems where classical concepts fail, while relativistic mechanics extends motion analysis to high speeds (special relativity) and gravitating bodies (general relativity). The two frameworks underpin modern physics and technology, from semiconductors to navigation systems. Common mathematical tools include Newton's laws, Lagrangian and Hamiltonian formalisms, energy methods, and differential equations. Numerical methods and computer simulations, such as finite element analysis and molecular dynamics, are essential for complex systems.

Applications of mekanikk span engineering, architecture, robotics, aerospace, automotive design, biomechanics, and geophysics. As a field, it links theoretical principles with practical problem solving, providing models that predict motion, deformation, and response of physical systems across scales.