Levers are grouped by where the fulcrum, load, and effect force are found.
two
Three classes Three
All the levers in the world can be grouped in 3 classes, depending on how the effort point, the load point, and the fulcrum are lined up. Class I . . . fulcrum (pivot) is in the middle. Class II . . . load is in the middle. Class III . . . effort is in the middle. Each individual lever can only belong to one class.
There are multiple classes of levers, which can be used for varying situations. For example, some can be used for lifting tools, whereas others can be used for pulling large amounts of weight. Often, it is not otherwise possible to move large amounts of weight without these varying uses of levers, which speaks to their usefulness.
Levers are grouped by where the fulcrum, load, and effect force are found.
two
There are three different Classes of levers. Class One Levers have a fulcrum in the middle. Class Two Levers have a resistance in the middle. Class Three Levers have effort in the middle.
Three classes Three
classes 1 and 2
first class The point about which a lever rotates is called the fulcrum
All the levers in the world can be grouped in 3 classes, depending on how the effort point, the load point, and the fulcrum are lined up. Class I . . . fulcrum (pivot) is in the middle. Class II . . . load is in the middle. Class III . . . effort is in the middle. Each individual lever can only belong to one class.
on the position of the fulcrum
Phylum.
Both classes are modal classes.
The HLA gene products can be grouped into three classes.
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