Motion
| Definition: |
Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity. |
| Notes: |
no qualif; a concept in physics: a bullet shot from a gun is MOTION: differentiate from MOVEMENT, a concept in physiol; see note there |
| Previously Indexed: |
Acceleration (1966-1967),Kinetics (1966-1967),Movement (1966-1967) |
Motion Categories.
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Acceleration |
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Coriolis Force - The apparent deflection (Coriolis acceleration) of a body in motion with respect to the earth, as seen by an observer on the earth, attributed to a fictitious force (Coriolis force) but actually caused by the rotation of the earth. In a medical context it refers to the physiological effects (nausea, vertigo, dizziness, etc.) felt by a person moving radially in a rotating system, as a rotating space station. (From Random House Unabridged Dictionary, 2d ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
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Rotation - Motion of a rigid body in which either one point is fixed, or all the points on a straight line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Motion Definitions and Terms
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