Form 7: Pulley Systems (Block and Tackle)
In this engaging exercise, students will explore the mechanics of pulley systems, focusing on block and tackle configurations. Through hands-on activities and problem-solving challenges, learners will calculate mechanical advantage, understand force distributions, and apply their knowledge to real-world scenarios!
Questions
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MultiChoice
What is a block and tackle?
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MultiChoice
How can you quickly determine the IMA of a pulley system?
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MultiChoice
If a block and tackle has 4 supporting rope segments, what is its IMA?
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MultiChoice
In a pulley system with an IMA of 4, how far must you pull the rope to lift a load 2 meters?
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MultiChoice
If you exert 50 N effort on an ideal block and tackle with IMA = 5, what load can you lift?
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MultiChoice
In an ideal block and tackle, how is tension distributed across supporting rope strands?
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MultiChoice
If the end of the rope you pull goes DOWN, does that segment count toward supporting load?
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MultiChoice
Construction cranes frequently utilize block and tackle systems in order to:
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MultiChoice
A block and tackle has IMA = 6 and requires 100 N input force to lift a 450 N load. What is its AMA?
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MultiChoice
Why might adding too many pulleys eventually decrease system overall efficiency?
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MultiChoice
A block and tackle lets a person lift 1200 N with 300 N effort. How many strands support the load?
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MultiChoice
Pulling 10 m of rope to raise a sail 2 m high indicates an IMA of: