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प्रश्न
______ help us to make work easier.
पर्याय
Ramp
Simple machines
Work
Energy
Pulley
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उत्तर
Simple machines help us to make work easier.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Answer the following.
What do you understand by a complex machine?
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Give scientific reason for the following:
Passengers in a bus are pushed backward when it starts suddenly.
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
A cook used a ‘fire tong pair’ of length 32 cm. to lift a piece of burning coal of mass 500 g. If he applies his effort at a distance of 8 cm from the fulcrum, what is his effort? Assume friction etc. to be absent. Also, obtain values of the M.A. and the V.R. of this ‘machine’.
Classify the following as a lever, a pulley and an inclined plane:
An axe
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
Which machine will you use to do the following work? Write their type.
To cut vegetables.
Simple machines makes work easier by trading ______ for force.
