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ICSE Class 10 Physics Question 10 of 19

Machines — Question 18

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Question 18

State the class of levers and the relative positions of load (L), effort (E) and fulcrum (F) in

(a) a bottle opener, and

(b) sugar tongs.

Answer
State the class of levers and the relative positions of load (L), effort (E) and fulcrum (F) in a bottle opener, and sugar tongs. Machines, Concise Physics Class 10 Solutions.

(a) A bottle opener is an example of Class II lever, as the fulcrum F and the effort E are at the two ends of the lever and the load is in between the fulcrum F and the effort E.

(b) Sugar tongs is an example of Class III lever, as the fulcrum F and the load L are at the two ends of the lever and the effort E is in between the fulcrum F and the load L.