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Rationales
Included
, Energy The ability to do work or cause change
potential energy stored energy that results from the position or shape of an object
kinetic energy the energy an object has due to its motion
work is done when energy changes from one form to another
Variables that effect potential energy: mass
position
Variables that effect kinetic energy: mass
speed or velocity
Force a push or pull on an object
mechanism The part of a machine which contains two or more pieces arranged so that the
motion of one compels the motion of the others possibly changing the force put in.
mechanisms can change: speed
direction
distance of output
Mechanical Advantage (MA) Ratio of the output force exerted by a machine to the input force applied to the
machine.
machine A device that changes a force
6 simple machines lever
pulley
screw
wheel and axle
inclined plane
wedge