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science
| Term | Definition |
|---|---|
| motion | Position, A certain place, Motion, A change of position, Frame of reference |
| speed | increase in the rate or speed of something |
| velocity | It tells us how fast something is moving and in what direction |
| acceleration | a change in velocity |
| force | physical power or strength possessed by a living being |
| newton | the standard unit of force in the International System of Units, equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram |
| net force | is the overall force acting on an object |
| friction | is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other |
| gravity | the force that attracts a body toward the center of the earth, or toward any other physical body having mass |
| weight | a body's relative mass or the quantity of matter contained by it, giving rise to a downward force |
| mass | a coherent, typically large body of matter with no definite shape |
| inertia | is the resistance of any physical object to any change in its state of motion |
| motion | the action or process of moving or being moved |