7536993
Pregunta 1
Pregunta
What is a lever?
Respuesta
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A flexible bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other.
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Simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. Levers affect the effort, or force, needed to do a certain amount of work, and are used to lift heavy objects.
Pregunta 2
Respuesta
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Fulcrum
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Effort
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Load
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Fulcrum
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Effort
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Load
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Fulcrum
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Effort
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Load
Pregunta 3
Pregunta
What type of levers exist?
Respuesta
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First Class Lever
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Big Lever
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Second Class Lever
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Small Lever
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Third Class Lever
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Plastic Lever
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