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A compound pulley, also known as a block and tackle, combines multiple pulleys to reduce the amount of force needed to lift a load. It consists of fixed and movable pulleys, where the load is attached to the movable pulley, and the fixed pulley is anchored in place. By pulling down on the rope, the force is distributed across multiple segments of the rope, allowing the user to lift heavier objects with less effort. This system effectively increases the mechanical advantage, making lifting easier and more efficient.
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What is a compound pulley?
a coumpound pulley is when there is a fixe pulley and movable pulley working together
What is compound pulley?
a coumpound pulley is when there is a fixe pulley and movable pulley working together
What year was the compound pulley invented?
the pulley was invented in the 1956
Who is the greek mathematician who invented the compound pulley and is known for his work with the laws governing simple machines?
Archimedes
What type of pulley can you use to change the direction of the effort force?
Fixed Pulley and Compound Pulley.
Name for compound pulleyother than compound pulley?
block and tackle
Who discovered pulley?
The simple pulley was invented in ancient times by an unknown person. The compound pulley was invented by Archimedes.
Which of the following is not a compound machine pulley bicycle?
The bicycle is not a simple machine, there are too many interacting moving parts.
What is the formula for the percent efficiency of a pulley?
The formula for the percent efficiency of a pulley is (output work/input work) x 100%. It compares the output work (work done by the pulley) to the input work (work done on the pulley) to determine how efficient the pulley system is in transferring energy.
What are types of pulleys?
There are fixed, moveable, and compound pulleys.
Why did Archimedes invent the compound pulley?
Archimedes invent the compound pulley around 250 BC. The invention was to utilize leverage to make moving a heavy object easier.
Is an axe a compound machine made up of a wedge and a pulley?
no
