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प्रश्न
Give a reason for the following.
Machines are able to make our work convenient.
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उत्तर
Machines help us to perform the same amount of work with much less effort than if we did the work manually. They also make our work faster and easier by multiplying the speed or the force applied.
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संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
What do you understand by a machine?
Define the term ‘work input’ and ‘work output’ in relation to a machine.
What care would you take to increase the life span of a machine which you use?
What do you understand by a simple machine?
Can a machine be 100% efficient?
What is the efficiency of an ideal machine?
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Name the levers mentioned in the following passage. Identify the fulcrum, load, and effort of each and say which type of lever it is.
Ravi and Savita sit on a seesaw in a garden. In the meantime, a gardener is trimming trees in the garden. He puts the leaves and other garbage in the wheelbarrow. Later, Ravi gets thirsty and he buys lemon sherbet. The sherbet seller cuts the lemon and squeezes it using a lemon squeezer. He puts small pieces of ice in the glass with the help of the tongs.
Simple machines usually exchange a larger force to move a heavy object.
