Physics
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.
Machines
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Answer
(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.
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