MECHANICAL ADVANTAGE

THE RATIO OF MAGNITUDE OF THE EXERTED FORCE ON AN OBJECT BY A SIMPLE MACHINE TO THE ACTUAL FORCE APPLIED ON THE MACHINE

WHEN LITTLE INPUT OF FORCE PRODUCE LARGE OUTPUT FORCE A GIVEN AMOUNT OF WORK IS DONE EASILY

INCLINED PLANE, WEDGE, PULLEYS, WHEEL AND AXLE, LEVEL, AND SCREW HELP TO ACHIEVE MECHANICAL ADVANTAGE

LOAD = SIMPLE MACHINE’S OUTPUT FORCE THAT DETERMINES THE WORK OUTPUT OF THE SIMPLE MACHINE BY ACTING OVER A GIVEN LOAD DISTANCE

EFFORT = SIMPLE MACHINE’S INPUT FORCE THAT DETERMINES THE WORK INPUT OF THE SIMPLE MACHINE BY ACTING OVER A GIVEN EFFORT DISTANCE

IMPORTANT EQUATION TO MEMORIZE: MECHANICAL ADVANTAGE = F OUT /F­ IN F OUT = SIMPLE MACHINE THAT EXERTS THE FORCE F­ IN = SIMPLE MACHINE ON WHICH FORCE IS EXERTED

MECHANICAL ADVANTAGE IS A MEASURE OF THE FORCE AMPLIFICATION PRODUCED BY USING A TOOL, MECHANICAL DEVICE OR MACHINE SYSTEM. WHICH OF THE FOLLOWING WILL OCCUR UNDER MECHANICAL ADVANTAGE? LITTLE INPUT OF FORCE WILL PRODUCE LARGE OUTPUT OF FORCE LARGE INPUT OF FORCE WILL PRODUCE LITTLE OUTPUT OF FORCE BOTH A AND B NEITHER A NOR B

MECHANICAL ADVANTAGE IS A MEASURE OF THE FORCE AMPLIFICATION PRODUCED BY USING A TOOL, MECHANICAL DEVICE OR MACHINE SYSTEM. WHICH OF THE FOLLOWING IS NOT TRUE ABOUT MECHANICAL ADVANTAGE? IT IS DIMENSIONLESS A GIVEN AMOUNT OF WORK IS DONE EASILY FLAT, TENSIONLESS SURFACE OF THE TABLE HELP TO ACHIEVE MECHANICAL ADVANTAGE MORE THAN ONCE CHOICE IS POSSIBLE

TO PULL A TREE TRUNK OUT OF A GARDEN, 25 N OF FORCE IS APPLIED TO THE SHOVEL. THE SHOVEL APPLIES A FORCE OF 500 N TO THE TREE TRUNK. WHAT IS THE MECHANICAL ADVANTAGE OF THE SHOVEL?

IF THE MECHANICAL ADVANTAGE OF A SIMPLE MACHINE IS 7, THEN THE: EFFORT IS 7 TIMES THE OUTPUT FORCE THE WORK OUTPUT IS 7 TIMES THE INPUT OUTPUT FORCE IS 7 TIMES THE EFFORT MORE THAN ONE CHOICE IS POSSIBLE