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Fulcrum and a bar or plank.load fulcrum effortFulcrumthe parts of the lever are resistance,effort and the fulcrum
The fulcrum is the part that the bar sits on to form a lever. The output arm is the part that the load sits on.
The lever? There are probably other names for it, but i was always taught the fulcrum, lever, and load. Load closer to fulcrum, easier to lift load. (longer lever= mechanical advantage) This would fall under simple machines in science class.
Moving the fulcrum on a lever will effect it by making it easier or harder to move the load. A lever is defined as a simple machine that consists of the fulcrum and a rigid bar.
yes,a fulcrum needs a bar to lift an object but a pulley does not need a bar
Fulcrum and a bar or plank.load fulcrum effortFulcrumthe parts of the lever are resistance,effort and the fulcrum
Fulcrum and a bar or plank.load fulcrum effortFulcrumthe parts of the lever are resistance,effort and the fulcrum
Fulcrum and a bar or plank.load fulcrum effortFulcrumthe parts of the lever are resistance,effort and the fulcrum
The fulcrum is the part that the bar sits on to form a lever. The output arm is the part that the load sits on.
An example of a lever is a crow bar. The fulcrum would be where the bar touches the ground, that is what the bar is rotating around.
The lever? There are probably other names for it, but i was always taught the fulcrum, lever, and load. Load closer to fulcrum, easier to lift load. (longer lever= mechanical advantage) This would fall under simple machines in science class.
Moving the fulcrum on a lever will effect it by making it easier or harder to move the load. A lever is defined as a simple machine that consists of the fulcrum and a rigid bar.
Total length of the lever = 2 meters = 200 cmLength of load arm (fulcrum to rock) = 30 cmLength of effort arm (fulcrum to effort-point) = 200 - 30 = 170 cmMechanical advantage = effort arm/load arm = 170/30Weight of the rock = Mass x gravity = 150 x 9.8 = 1,470 newtonsEffort = weight/M.A. = 1,470 x 30/170 = 259.4 newtons.(That's the apparent weight of 26.47 kg of mass.)
yes,a fulcrum needs a bar to lift an object but a pulley does not need a bar
The rigid bar is not called a fulcrum! And, by the same token, why is the bar called a bar?
Levers can be all of them. A first class lever is when the pivot (funcrum) is in the middle. A second class lever has the load (resistance) in the middle, and the third class lever has the effort (force) in the middle. For example, a see-saw is a first class lever because the fulcrum is the in middle. A exmaple for a second class lever would be a can opener because the load, the can, is in the middle. And last, the thrid class lever is a arm because the effort is in the middle, because your elbow gives the effort to move the arm.
A fixed pulley when used individually, uses more effort than the load to lift the load from the ground. This is what a fixed pulley always does. When attached to an unmovable object e.g. a ceiling or wall, it always acts as a first class lever where the fulcrum is located at the axis but with a minor change, the bar becomes a rope. The advantage of the fixed pulley is that you do not have to pull or push it up and down. The disadvantage is that you have to apply more effort than the load.