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प्रश्न
Name some simple machines.
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उत्तर
Simple machines are pulley, wedge, inclined plane, screw, lever, wheel, and axle.
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संबंधित प्रश्न
Can a machine have an efficiency of 100%? Give a reason to support your answer.
Why is a machine not 100% efficient?
Give an example of the following uses of a machine:
to obtain gain in speed
Write an expression to show the relationship between mechanical advantage, velocity ratio, and efficiency for a simple machine.
Classify the following as a lever, a pulley and an inclined plane:
A needle
Which machine will you use to do the following work? Write their type.
To cut vegetables.
What is meant by simple machines?
______ help us to make work easier.
Rearrange the letters and find out the name of the tool.

R L E V E
| ______ | ______ | ______ | ______ |
Simple machines usually exchange a larger force to move a heavy object.
