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Question
Answer the following.
State the principle of levers.
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Solution
The principle of a lever states that the product of the load and the load arm is always equal to the product of the effort and the effort arm.
Load x Load arm = Effort x Effort arm Load Effort arm
`"Load "/ "Effort"`= `"Effort arm"/"Load arm"`
The above ratio is called the mechanical advantage of a lever.
RELATED QUESTIONS
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
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Give one example of a class I lever in a case where the mechanical advantage is less than 1?
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Tick the most appropriate answer.
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Answer the following in a word or two or in a sentence.
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A ______ lever will always have M.A. > 1.
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