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May 18, 2017 ... A pulley is simply a collection of one or more wheels over which you loop a rope to make it easier to lift things. Pulleys are examples of what ...


Apr 26, 2017 ... By using a pulley, we do not have to pull up on a rope to lift a heavy object .... is used to make work easier (provides a mechanical advantage).

Feb 14, 2012 ... Understand and learn about how these machines make work a lot more easier and less time ... Do you know how a #pulley makes life easier?


A pully is simply a circular lever. The same amount of work is required, but you exchange one unit for another. To lift 10 pounds one foot requires 10 foot-pounds of ...


A pulley makes work easier by redirecting and amplifying force. It helps reverse the direction of an individual's lifting force. As a user pulls a rope down, the ...


Apr 24, 2017 ... The purpose of a pulley system is to be able to move a heavy object with ... in that pulling down on the rope is easier than pulling up on the object. ... The simple pulley mentioned above can even have a pulley added to create ...


Apr 13, 2013 ... Since 5th grade science I've known that using a pulley reduces the ... Make sure to read the rules. ... ELI5: How do resealable aluminum cans work and why aren't they the norm? ... ExplainedELI5: How do pulleys reduce the weight of an item ... just taking more time to do it, and that's what makes it easier.


Dec 12, 2014 ... Humans have invented six devices that combine to make work easier. ... and axle , the lever, the inclined plane, the pulley, the screw and the wedge. ... us with the means to do many things that we could never do without them.


Simple machines make work easier by multiplying, reducing, or changing the ... A fixed pulley is used to change the direction of force needed to do work; in order ...


A pulley is a wheel with a groove along its edge, that holds a rope or cable. ... A crane uses pulleys to help it lift heavy loads. ... 3 How does it work? ... More pulleys makes it easier to pull (or they allow you to pull a heavier load), but you ... Not logged in; Discussion for this IP address · Contributions · Create account · Log in ...