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प्रश्न
______ help us to make work easier.
विकल्प
Ramp
Simple machines
Work
Energy
Pulley
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उत्तर
Simple machines help us to make work easier.
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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
Define the term ‘work input’ and ‘work output’ in relation to a machine.
The correct relationship between the mechanical advantage (M.A.), the velocity ratio (V.R.) and the efficiency (n) is ______.
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Give an example of the following use of a machine to obtain gain in force.
What is the efficiency of a machine?
Establish a relationship between efficiency, M.A., and V.R.
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
Classify the following as a lever, a pulley and an inclined plane:
An axe
