Dynamics (mechanics)#See also
{{short description|Study of forces and their effect on motion}}
In physics, dynamics or classical dynamics{{cite book | last=Greenwood | first=D.T. | title=Classical Dynamics | publisher=Dover Publications | series=Dover books on mathematics | year=1997 | isbn=978-0-486-69690-4 | url=https://books.google.com/books?id=x7rj83I98yMC | access-date=2025-02-23}}{{cite book | last1=Thornton | first1=S.T. | last2=Marion | first2=J.B. | title=Classical Dynamics of Particles and Systems | publisher=Brooks/Cole | year=2004 | isbn=978-0-534-40896-1 | url=https://books.google.com/books?id=HOqLQgAACAAJ | access-date=2025-02-23}}{{cite book | last1=José | first1=J.V. | last2=Saletan | first2=E.J. | title=Classical Dynamics: A Contemporary Approach | publisher=Cambridge University Press | year=1998 | isbn=978-0-521-63636-0 | url=https://books.google.com/books?id=Eql9dRQDgvQC | access-date=2025-02-23}} is the study of forces and their effect on motion.
It is a branch of classical mechanics, along with statics and kinematics.
The fundamental principle of dynamics is linked to Newton's second law.{{cite book | last=Mittelstedt | first=Christian | title=Engineering Mechanics 3: Dynamics | chapter=Kinetics of a point mass | publisher=Springer Berlin Heidelberg | publication-place=Berlin, Heidelberg | date=2025 | isbn=978-3-662-69972-0 | doi=10.1007/978-3-662-69973-7_2 | pages=35–69}}
Subdivisions
=Rigid bodies=
{{excerpt|Rigid-body dynamics|templates=-classical mechanics}}
=Fluids=
{{excerpt|Fluid dynamics|templates=-continuum mechanics|files=1}}
Applications
{{see also|Applications of fluid dynamics}}
Classical dynamics finds many applications:
- Aerodynamics, the study of the motion of air
- Brownian dynamics, the occurrence of Langevin dynamics in the motion of particles in solution
- File dynamics, stochastic motion of particles in a channel
- Flight dynamics, the science of aircraft and spacecraft design
- Molecular dynamics, the study of motion on the molecular level
- Langevin dynamics, a mathematical model for stochastic dynamics
- Orbital dynamics, the study of the motion of rockets and spacecraft
- Stellar dynamics, a description of the collective motion of stars
- ''Vehicle dynamics, the study of vehicles in motion
Generalizations
Non-classical dynamics include:
- System dynamics, the study of the behavior of complex systems
- Quantum dynamics analogue of classical dynamics in a quantum physics context
- Quantum chromodynamics, a theory of the strong interaction (color force)
- Quantum electrodynamics, a description of how matter and light interact
- Relativistic dynamics, a combination of relativistic and quantum concepts
- Thermodynamics, the study of the relationships between heat and mechanical energy
See also
{{main cat|Dynamics (mechanics)}}