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Name, Date, Hr/PerSimple Machines, IMA, AMA and EfficiencyIdeal Mechanical Advantage1. a. A simple machine would be considered ideal if it had no friction that’s because some of the effort that is putinto the machine is wasted in overcoming friction.b. Ideal Mechanical Advantage has the symbol IMA.c. Ideal Mechanical Advantage can be determined by the following equation:ideal mechanical advantage effort distance length of rampresistance distanceheight of rampIMA dEdRActual Mechanical Advantage2. a. Actual machines have friction. They are not as have as high of a mechanical advantage as ideal machinebecause some of the effort is lost in overcoming friction.b. Actual Mechanical Advantage has the symbol of AMA.c. Actual Mechanical Advantage can be determined by the following equation:actual mechanical advantage resistance forceeffort forceAMA FRFEEfficiency3. a. A machine multiplies force. How effective the machine is in that is called efficiency.b. Efficiency is expressed as a percentage.c. Efficiency can be determined by the following equation:efficiency actual mechanical advantage x 100ideal mechanical advantageefficiency AMA x 100IMAInclined Planes4. The following is how you tell the IMA of an inclined plane.dEdRideal mechanical advantage effort distance length of rampresistance distanceheight of rampIMA dEdRa. What is the IMA of this ramp? Show your work.24 m5m
b. What is the IMA of this ramp? Show your work.18 m4m5. To determine the AMA of the inclined plane, you must use force. The effort force is what is measured with aspring scale in Newtons. The resistance force is weight of the box in newtons.The equation is:actual mechanical advantage resistance forceeffort forceAMA FRFE15 N35 Nactual mechanical advantage resistance forceeffort forceAMA FR 35 N 2.315 NFEa. Calculate the AMA of the ramp below. Show your work.33 N105 Nb. Calculate the AMA of the ramp below. Show your work.20 N3255N
6. The efficiency of a machine can be determined by the following equation.efficiency actual mechanical advantage x 100ideal mechanical advantageefficiency AMA x 100IMAa. Determine the efficiency based on the diagram below. Show work.150 N783 N2mb. Determine the efficiency based on the followingdiagram. Show your work.12 m730 N4933 N1.2 m9mLevers5. To find the Ideal Mechanical Advantage of a lever, use the following equation.ideal mechanical advantage effort distance from fulcrumresistance distance from fulcrum.IMA dE 37 m 3.0812 mdR37 m12 mb. Determine the IMA for the following. Show your work.30 m24 m
c. Determine the IMA for the following. Show your work.15 m7mPulleys8. The ideal mechanical advantage of a pulley is determined by counting the number of supporting ropes. Look atthe following examples.Mechanical Advantage and Efficiency[random worksheet that doesn’t have a title - a force of 100 n is applied to a simple machine in order to lift a bixthat weighs 300 N .etc]
Name, Date, Hr/PerIMA, AMA & Efficiency[have not made new copy yet]
Show work. b. Determine the efficiency based on the following diagram. Show your work. 730 N Levers 5. To find the Ideal Mechanical Advantage of a lever, use the following equation. ideal mechanical advantage effort distance from fulcrum IMA dE 37 m 3.08 dR 12 m 12 m b. Determine the IMA for the following. Show your work. 30 m 150 N x 100
