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University Physics Volume 1

Key Terms

University Physics Volume 1Key Terms

Key Terms

banked curve
curve in a road that is sloping in a manner that helps a vehicle negotiate the curve
centripetal force
any net force causing uniform circular motion
Coriolis force
inertial force causing the apparent deflection of moving objects when viewed in a rotating frame of reference
drag force
force that always opposes the motion of an object in a fluid; unlike simple friction, the drag force is proportional to some function of the velocity of the object in that fluid
friction
force that opposes relative motion or attempts at motion between systems in contact
ideal banking
sloping of a curve in a road, where the angle of the slope allows the vehicle to negotiate the curve at a certain speed without the aid of friction between the tires and the road; the net external force on the vehicle equals the horizontal centripetal force in the absence of friction
inertial force
force that has no physical origin
kinetic friction
force that opposes the motion of two systems that are in contact and moving relative to each other
noninertial frame of reference
accelerated frame of reference
static friction
force that opposes the motion of two systems that are in contact and are not moving relative to each other
terminal velocity
constant velocity achieved by a falling object, which occurs when the weight of the object is balanced by the upward drag force
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