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प्रश्न
Name the machine to which the following belong:
Beam balance
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उत्तर
Beam balance: A lever (lever of class I).
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संबंधित प्रश्न
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a nutcracker
State three differences between the three classes of levers.
Name the machine to which the following belong:
Sugar tongs
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Explain why the mechanical advantage of the class III type of lever is always less than 1.
Class III levers have mechanical advantage less than one. Why are they then used?
Classify the following into levers:
A door
Differentiate Class I lever and Class II lever.
