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A knife can be classified as a Class 1 lever. The classification of levers is based on the relative positions of the effort (force applied), the fulcrum (pivot point), and the load (resistance or object being moved). In a Class 1 lever:

Fulcrum (F): The fulcrum is located between the effort and the load.

Effort (E): The effort is applied on one side of the fulcrum.

Load (L): The load is on the other side of the fulcrum.

In the case of a knife:

Fulcrum (F): The point where the knife pivots, usually where the handle meets the blade.

Effort (E): The force applied by the user to cut or slice through the food.

Load (L): The resistance or the material being cut, such as vegetables, meat, or other food items.

When you use a knife, you apply force (effort) on the handle, causing the blade to pivot around the fulcrum and exerting force on the material being cut (load). Class 1 levers are characterized by their balanced arrangement, where the effort and load are on opposite sides of the fulcrum.

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Kent Master

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