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Kinematics, or particle kinematics as it is particularly considered here, deals with the description of motion, without regard to its cause. It is concerned primarily with particular cases or types of motion and with quantities, including acceleration, velocity, and position. |
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The chief types and cases of motion considered in elementary physics are uniform circular motion and rectilinear, or straight line motion.
Acceleration is the rate of change of velocity. Changes in direction of motion are considered acceleration, as well as the more commonly considered changes in speed.
Velocity is the rate of change of position. Velocity is usually considered a directed quantity, which can sometimes be separated into direction and magnitude. The magnitude of velocity is called speed.
Motion is a change in position, and for a particle at rest there is no motion and no change in position. Position is usually described using a coordinate system specifying the distance and direction from a particular origin. Many different coordinate systems can be used to describe a position.
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The history of kinematics is not yet clear. Ideas of antiquity and classical and medieval times may be useful, but the best and clearest development of this subject is modern, beginning in the 16th century, 17th century, 18th century, 19th century, and 20th century. Future developments are obscure. The sociology of kinematics is not clear. The connection of various peoples including nations and Western Civilization. Asiatic peoples, African peoples, and American Indian peoples may be useful. Communities may be significant, and social structure and change as well. Institutions including religion, government, and economics seem to be minimally useful, for the most part. Education including research, teaching, cultural institutions, educational organization, and particular schools may be useful. families do not seem to be strongly connected. Culture is useful. Behavioral culture including customs, occupations, recreation and entertainment, and cultural events can be connected. Conceptual culture including language, graphic arts, literature, mathematics, applied science, and philosophy is important. material culture seems to be minimally useful. Anthropology including particular groups, human geography, human ecology, physical anthropology, demography, and social foundations seems to have very limited applicability. |
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Personal studies can be connected to particle kinematics. |
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Biography may have some connection. Psychology including social psychology, personality, mental disorders, developmental psychology, behavior patterns, mind, and behavioral elements is significant. The human body including form and appearance, life cycle and development, disease, body functions, and body systems, mostly demonstrates illustrations. |
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Other Science Biology including biohistory, ecology, systematics, organism biology, cell biology, and molecular biology also provides illustrations. |
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Earth science including geohistory, physical geography, atmospheric science, hydrospheric science,and geology also provides illustrations. Astronomy including cosmology, galactic astronomy, stellar astronomy, and local astronomy also illustrate them. Chemistry is minimally useful, but systems, changes, and substances sometimes illustrate concepts of kinematics. The structure of matter, quantum physics, relativity, electromagnetism, and thermodynamics principally demonstrate applications. It also has applications in gravitation, deformable bodies, and rigid body mechanics. Other areas of particle mechanics can be connected. This has applications in particle systems including simplified mechanical systems, particle interactions, and system properties. Energetics including power, energy, and work depends on it. Kinetics, including types and cases of force, forces, momentum, and mass depends heavily on these concepts. Kinematics depends somewhat on particle description. |
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