Question

Give one example each of a class I lever where mechanical advantage is (a) more than 1, and (b) less than 1.

Answer 1

1. Class I levers: In these types of levers, the fulcrum F is in between the effort E and the load L. Example: a seesaw, a pair of scissors, crowbar.

(a) More than one: shears used for cutting the thin metal sheets.
(b) Less than one: a pair of scissors whose blades are longer than its handles.