Question

If the effort needed is less than the load, then mechanical advantage of the machine is:
(a) Greater than 1
(b) Less than 1
(c) Equal to one
(d) None of these

May 5, 2024

Answer

(a) Greater than 1

Reason — Mechanical advantage (M.A.) is defined as the ratio of the load force to the effort force. When the effort force required is less than the load force, the mechanical advantage is greater than one, indicating that the machine amplifies the input force to overcome the load.

💡 Some Related Questions

Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.

Derive a relationship between mechanical advantage, velocity ratio and efficiency of a machine

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.

Classes III levers have mechanical advantage less than 1. Why are they then used?

Explain why mechanical mechanical advantage of class III lever is always less than 1.

Both a pair of scissors and a pair of pliers belong to the same class of levers. Name the class of lever. Which one has the mechanical advantage less than 1?

Name the three classes of levers and state how are they distinguished. Give two examples of each class.

What is a lever? State its principle.

State one reason why mechanical advantage is less than the velocity ratio for an actual machine.

(a) State the relationship between mechanical advantage, velocity ratio and efficiency. (b) Name the term that will not change for a machine of a given design.