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12 chapter

work when you exert a force on the object that caused the object to move some distance
work formula work=forcexdistance
how does a plane fly? berniellis princapl the curved wing is less force down creating a net force
efficiency formula efficiency=output work divided by inputwork x 100%
mechanical advantage formula mechanical advantage= output force divided by input force
machine a device that changes the amount of force exerted or the direction in which the force is exerted
input force the force exerted on the machine
joule amount of work done when you exert a force of 1 newton to move an object a distance of 1 meter
berniellis princaple the pressure in a fluid increases as the speed of the fluid increases
mechanical advantage the number of times the force exerted on a machine is multiplyed by the machine
output force the force exerted on an object by a machine
actual mechanical advantage the mechanical advantage that a machine provides in a real situtation
ideal mechanical advantge the mechanical advantage that a macine would have without friction
efficency the precentage of the input work that is converted to a output work
Created by: erinpinkperson