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This Concept Map, created with IHMC CmapTools, has information related to: 1R5_Pulley.cmap, 1R5 Movable pulley The main disadvantage of a movable pulley is that you have to pull or push the pulley up or down., 1R5 Fixed simple pulley Although there is no mechanical advantage, it is still useful., 1R5 Movable pulley Combined or Compound pulley, 1R5 watch on YouTube Video, Combined or Compound pulley advantage A compound pulley with one fixed pulley and one moveable pulley makes life easier as the effort needed to lift the load is half the weight of the load, 1R5 Fixed simple pulley Combined or Compound pulley, 1R5 Movable pulley A movable pulley is a pulley that moves with the load., Combined or Compound pulley advantage More pulleys can be added to make work even easier, 1R5 Fixed simple pulley The advantage of the fixed pulley is that you do not have to pull or push the pulley up and down., 1R5 Fixed simple pulley A fixed pulley is the only pulley that when used individually, uses the same or more effort (due to frictional loss) to lift the load from the ground., Combined or Compound pulley disadvantage The main disadvantage is the pulled rope must travel further than the raised load., 1R5 Movable pulley The movable pulley allows the effort to be less than the weight of the load., 1R5 Movable pulley The main advantage of a movable pulley is that you use less effort to pull the load