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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A needle
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उत्तर
A needle – An inclined plane
संबंधित प्रश्न
Select the correct alternative:
For an ideal machine, the efficiency is
What do you understand by a machine?
Name six simple machines. Give an example of each machine.
Give a reason for the following.
Machines are able to make our work convenient.
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
Give an example of the following use of a machine to change the point of application of the force.
Why is this so traveller’s bags have wheels?
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
Simple machines usually exchange a larger force to move a heavy object.
