Physics
The diagram given below shows the three kinds of levers. Name the class of each lever and give one example of each class.
(a)
(b)
(c)
Related Questions
Give one example of class I lever in each case where the mechanical advantage is
(i) more than 1
(ii) equal to 1
(iii) less than 1.
Name the class to which the following levers belong :
(a) A pair of scissors,
(b) a lemon squeezer,
(c) a nut cracker,
(d) a pair of sugar tongs,
(e) a beam balance,
(f) an oar rowing a boat,
(g) a wheel barrow,
(h) a see-saw,
(i) a pair of pliers,
(j) a crowbar.
How can you increase the mechanical advantage of a lever?
How does the friction at the fulcrum affect the mechanical advantage of a lever ?