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SIMPLE MACHINES
Term | Definition |
---|---|
WORK | WHEN A FORCE IS USED TO MOVE AN OBJECT |
WORK FORMULA | WORK EQUALS FORCE TIMES DISTANCE |
JOULE | UNIT THAT MEASURES AMOUNT OF WORK |
MACHINE | ANY DEVICE THAT CHANGES THE FORCE , DISTANCE, OR DIRECTION EXERTED |
INPUT FORCE | FORCE EXERTED ON MACHINE BY THE USER |
OUTPUT FORCE | FORCE EXERTED BY THE MACHINE ON THE OBJECT BEING MOVED |
INCLINE PLANE | SM CONSISTING OF A FLAT, SLANTED SURFACE |
WEDGE | SM THAT IS THICK AT ONE END AND THIN AT THE OTHER END |
SCREW | SM CONSISTS OF AN INCLINE PLANE WRAPPED AROUND A CYLINDER |
LEVER | SM THAT CONSISTS OF A ROD THAT PIVOTS ON A FIXED POINT |
FULCRUM | THE FIXED POINT ON A LEVER WHERE IT PIVOTS |
WHEEL AND AXLE | SM THAT CONSISTS OF 2 WHEELS THAT ROTATE AROUND A FIXED AXIS |
PULLEY | SM CONSISTING OF A GROOVED WHEEL WRAPPED WITH A ROPE OR CABLE OR CHAIN |
COMPOUND MACHINE | DEVICE USING 2 OR MORE SIMPLE MACHINES |
RAKE | EXAMPLE OF A LEVER |
DOOR HANDLE | ANOTHER EXAMPLE OF A LEVER |
RAMP | EXAMPLE OF AN INCLINE PLANE |
STAIRS | ANOTHER EXAMPLE OF INCLINE PLANE |
BOTTLE CAP | EXAMPLE OF A SCREW |
LIGHT BULB | ANOTHER EXAMPLE OF A SCREW |
AXE HEAD | EXAMPLE OF A WEDGE |
FLAG POLE | EXAMPLE OF A PULLEY |
LADDER | THIRD EXAMPLE OF AN INCLINE PLANE |