Advertisements
Advertisements
Question
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?
Advertisements
Solution
A pair of scissors and a pair of pliers both belong to class I lever.
A pair of scissors has mechanical advantage less than 1.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is True or False.
All levers are force multipliers.
Name the class to which the following lever belong:
a nutcracker
Name the class to which the following lever belong:
a see-saw
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
Name the machine to which the following belong:
Beam balance
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Class III levers have mechanical advantage less than one. Why are they then used?
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
Lemon juicer belongs to which type of lever? Why?
