Advertisements
Advertisements
प्रश्न
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
Advertisements
उत्तर
It is very difficult to open the sealed metal cap of a cold drink bottle with our bare hands. A simple machine like a bottle opener (Class II lever) multiplies the applied force and much less effort is required to open the cap. Hence, it acts as a force multiplier.
APPEARS IN
संबंधित प्रश्न
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 beam balance
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
State three differences between the three classes of levers.
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Explain why the mechanical advantage of a class II of lever is always more than 1.
A ______ lever will always have M.A. > 1.
