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Physics Childs 5

Vocabulary

TermDefinition
FRICTION A force that opposes motion as a result of contact between surfaces.
STATIC FRICTION is the force that must be overcome in order to start an object moving.
KINETIC FRICTION is the force that must be overcome in order to keep an object moving.
GRAVITATIONAL FIELD the region in which an object ( usually massive) exerts a force of attraction on other masses.
GRAVITATIONAL FORCE Universal attraction between two masses
GRAVITATIONAL FORCE FORMULA Fg = Gm1m2 / r2
UNIVERSAL GRAVITATIONAL CONSTANT G= 6.7 x 10-11 Nm2/kg2
Created by: sjjwhite
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