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प्रश्न
Answer the following.
State the principle of levers.
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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.
संबंधित प्रश्न
State whether the following statement is True or False.
All levers are force multipliers.
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.
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
a beam balance
Name the class to which the following lever belong:
a see-saw
Name the class to which the following levers belong:
a pair of pliers
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
How can you increase the mechanical advantage of a lever?
Name the machine to which the following belong:
Beam balance
Name the machine to which the following belong:
Lemon crusher
Name the machine to which the following belong:
Sugar tongs
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?
Explain why the mechanical advantage of a class II of lever is always more than 1.
Classify the following into levers:
Wheel barrow
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
Lemon juicer belongs to which type of lever? Why?
second-order lever ______.
Differentiate Class I lever and Class II lever.
