Science Class 5 Other

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

When using a fixed pulley to lift a bucket of water, what is the primary benefit provided by the machine?

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A It reduces the amount of force needed.
B It increases the distance the load moves.
C It changes the direction of the applied force.
D It multiplies the speed of the work.

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Answer: C. It changes the direction of the applied force.

Answer: C) It changes the direction of the applied force.
Explanation: A single fixed pulley has a mechanical advantage of 1, meaning you use the same force as the weight of the object. Its only benefit is letting you pull down (using your body weight) to lift an object up.

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When using a fixed pulley to lift a bucket of water, what is the primary benefit provided by the machine?

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