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प्रश्न
Give an example where a machine is used to obtain gain in speed.
उत्तर
In automobiles, gear arrangement system (machine) is used to obtain gain in speed.
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संबंधित प्रश्न
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Select the correct alternative:
For an ideal machine, the efficiency is
Answer the following.
What is a machine?
Classify the following as a lever, a pulley and an inclined plane:
A staircase
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
Classify the following as a lever, a pulley and an inclined plane:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A knife
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
What is a lever? How are the orders of the lever determined?
Why is this so machines have to be maintained?
