That's actually only possible in a First Class lever. In that case, moving the
fulcrum closer to the load makes it easier to lift the load, since it now takes
less force at the effort end. But the effort force also has to move through a
greater distance than it did before, in order to lift the load to the same height.
Move the fulcrum point so it is more than halfway toward the object being moved.
A seesaw is a basic lever and by definition it has a fulcrum. Without the fulcrum, there would be no point for the seesaw to operate on.
Fulcrum would be the answer.
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.
If you are talking about a hand held manual can opener then the fulcrum would be the rim of the can against which you engage the little notch before you exert pressure upwards on the handle to open the can.
Move the fulcrum point so it is more than halfway toward the object being moved.
If the book holders are shorter than the fulcrum then it can still function are a fulcrum. If the book holders are taller than the fulcrum then it can't function as a fulcrum.
Yes. You would also have exactly the same experienceif you moved toward the south pole instead.
A seesaw is a basic lever and by definition it has a fulcrum. Without the fulcrum, there would be no point for the seesaw to operate on.
The lever and fulcrum decrease the amount of force needed to move the rock
The elbow in the hand is analogous to the fulcrum in a lever
The fulcrum is the swing hinges and the effort is the seat, you sitting in it would be the load.
A Fulcrum is a simple machine invented by the greek mathematician Archimedes who theorized that with a large enough fulcrum one could move the Earth. As for use in a sentance? Here ya go. Archimedes used a fulcrum to lift the earth.
It's a tool
It's a tool
Fulcrum would be the answer.
The fulcrum in this case would be your elbow joints. more specifically the trochlea and capitulum on the humerus which articulate with the radius and ulna