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प्रश्न
Answer the following.
State the principle of levers.
उत्तर
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.
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संबंधित प्रश्न
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
a see-saw
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
Name the machine to which the following belong:
Lemon crusher
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Answer the following.
Name the simplest of all types of machines.
Which type of lever has a mechanical advantage always more than one? Give one example. What change can be made in this lever to increase its mechanical advantage?
Class III levers have mechanical advantage less than one. Why are they then used?
Classify the following into levers:
A catapult
Differentiate Class I lever and Class II lever.
