Single Choice

Which of the following are correct examples of first, second and third class levers? First class Lever Second class Lever Third class Lever $$I$$ Scissors Wheel barrow Broom $$II$$ Ice Tongs Tweezer Paper cutter $$III$$ Pliers Nut cracker Fishing rod

A$$I$$ and $$II$$ only
B$$II$$ and $$III$$ only
C$$III$$ and $$I$$ only
Correct Answer
D$$I,II$$ and $$III$$

Solution

A class I lever has the fulcrum between effort and load. In an ice tong and tweezer, effort is between fulcrum and load. Hence, they are class III lever. In scissors and pliers, fulcrum is between effort and load. Therefore they are class I levers .
A class II lever has the load between effort and fulcrum. In wheel barrow, paper cutter and nut cracker, load is between effort and fulcrum. Therefore, they are class II levers .
A class III lever has the effort between fulcrum and load. A broom and fishing rod have the effort between fulcrum and load. Therefore, they are class III levers.
Hence, in the given table, I and III are the correct examples of I, II and III class levers .

SIMILAR QUESTIONS

Machines

Classify the following into levers as class I, class II or class III. a door.

Machines

Classify the following into levers as class I, class II or class III. a catapult

Machines

Classify the following into levers as class I, class II or class III. a wheel barrow

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Classify the following into levers as class I, class II or class III. a fishing rod.

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An egg beater is an example of _________.

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A bottle opener is an example of second order lever.

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State true or false. See saw is a first order level.

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State true or false. In a fishing rod, force is applied in between load and fulcrum.

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Four simple machines are given below. Identify the pair of simple machines that belong to class II levers.

Machines

Look at the figure. Which of the following statements are not true? $$I$$. Both are second class levers $$II$$. Both are simple machines $$III$$. Both have a fulcrum between a load and force

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