9 terms

Forces

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Terms in this set (...)

friction
the general term for the force that one surface exerts on another when they rub against eachother
rolling friction
the kind of friction that results when a wheel turns on a surface
sliding friction
the kind of friction that results when you rub sandpaper against wood
fluid friction
the kind of friction that exists between oil and a door hinge
weight
a measure of force on gravity
free fall
a kind of friction that exists when only force acting on an object is gravity
gravity
the force that accelerates objects towards earth
terminal velocity
a falling object reaches this when forces of gravity and air resistance are balanced
air resistance
the kind of friction that slows a falling object