Advertisements
Advertisements
प्रश्न
Answer the following.
What is a Class I lever?
उत्तर
In Class I levers (also called levers of first order), the fulcrum lies between the load and the effort, i.e., the load and the effort are on the opposite sides of the fulcrum.
Examples: See-saw, pairs of scissors, pliers, beam balance, etc.
The mechanical advantage of a Class I lever is always greater than one. These levers act as force multipliers.
APPEARS IN
संबंधित प्रश्न
Which class of lever has the mechanical advantage always less than 1? Give an example.
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
a beam balance
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a nutcracker
How does the friction at the fulcrum affect the mechanical advantage of the lever?
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Draw a labelled diagram of a class II lever. Give one example of such a lever.
Lemon juicer belongs to which type of lever? Why?
Differentiate Class I lever and Class II lever.
