simple machine

In physics, a simple machine is any device that only requires the application of a single force to work. Work is done when a force is applied and results in movement over a set distance. The work done is the product of the force and the distance. The amount of work required to achieve a set objective is constant; however the force required can be reduced provided the lesser force is applied over a longer distance. The ratio between the two forces is the mechanical advantage.
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Noun
1. a device for overcoming resistance at one point by applying force at some other point
(synonym) machine
(hypernym) mechanical device
(hyponym) inclined plane

simple machine
danh từ dụng cụ đơn giản dùng làm (một bộ phận của) máy (cái bánh xe, đòn bẩy )
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Eng: simple machine
Urdu: سادہ مشین ۔ مُتعدد بُنیادی میکانی آلات میں سے کوئی ایک فانہ ۔