Pulley
noun
A wheel with a grooved rim around which a cord passes, which acts to change the direction of a force applied to the cord and is used to lift heavy objects.
The construction workers used a pulley to lift the heavy steel beams.
Often appears as...
- pulley system
- block and pulley
Usage tips
Technical
noun
A wheel with a grooved rim around which a cord passes, which acts to change the direction of a force applied to the cord and is used to lift heavy objects.
The construction workers used a pulley to lift the heavy steel beams.
Often appears as...
- pulley system
- block and pulley
Usage tips
Technical
Definition 1 of 1
Pro Tip 1/3Mechanical Advantage
A pulley can make lifting easier by providing leverage, which reduces the force needed.
With the right pulley setup, even a child can lift a heavy object.
Pro Tip 2/3Physics Context
Pulleys are a common topic in physics, often used to demonstrate principles of mechanics.
In our physics class, we calculated the force needed using a pulley.
Pro Tip 3/3Compound Systems
Pulleys can be combined in complex systems to move large objects, like in cranes.
The crane's compound pulley system lifted the container effortlessly.
Pro Tip 1/3Mechanical Advantage
A pulley can make lifting easier by providing leverage, which reduces the force needed.
With the right pulley setup, even a child can lift a heavy object.
Pro Tip 2/3Physics Context
Pulleys are a common topic in physics, often used to demonstrate principles of mechanics.
In our physics class, we calculated the force needed using a pulley.
Pro Tip 3/3Compound Systems
Pulleys can be combined in complex systems to move large objects, like in cranes.
The crane's compound pulley system lifted the container effortlessly.
Pro Tip 1/3Mechanical Advantage
A pulley can make lifting easier by providing leverage, which reduces the force needed.
With the right pulley setup, even a child can lift a heavy object.
Pro Tip 2/3Physics Context
Pulleys are a common topic in physics, often used to demonstrate principles of mechanics.
In our physics class, we calculated the force needed using a pulley.
Pro Tip 3/3Compound Systems
Pulleys can be combined in complex systems to move large objects, like in cranes.
The crane's compound pulley system lifted the container effortlessly.
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Video examples
Nat Geo’s Stop-Motion...
of painting one of our characters is holding a cell phone and if you look carefully added everything down to the screen and the metal band around the outside is all there if you look at the pulley system that the ropes connect to those are all miniature little pulleys and they all work and they all work in
Video examples
Samantha Power: Shaking...
and yet went in and risked his life in order to save Sergio. But all they had was a woman's handbag -- literally one of those basket handbags -- and they tied it to a curtain rope from one of the offices at U.N. headquarters, and created a pulley system into this shaft in this quivering building
Video examples
Underwater Cave Diving:...
So I... I left the hot pot of tea, a light, a pulley system so you could get yourself out of the water and I headed back a few hours up to Camp Three. I got there at about one in the morning and woke everyone up and said, "We have to go on a rescue."
Video examples
Safari Live - Day 234 PIPE...
fellow just seeking far and away out of his sight late in the afternoon ki pulley returned to deal with the second intruder the and nomads charged that key pulley to protect his prize but she chose to leave the gentlemen to square
Video examples
Safari Live - Day 230 PIPE...
pulley dealt with him accordingly this morning now one other male that we have just seen from a distant stayed back with his female here and have been meeting the whole day he pulley came and said about a hundred metres away from
Video examples
The thrilling potential...
It had some strings and pulleys and some springs. What I got is basically a gesture-interface device that actually acts as a motion-sensing device made for two dollars. So, here, whatever movement I do in my physical world
Video examples
Building an Ancient,...
each pushed by perhaps a dozen men as well as horses these were connected to ropes that wound through pulley blocks up and down the lifting tower in this way a marble drum could be raised high above the streets below
Video examples
Buzz Aldrin: Mission to...
sophisticated machine it had a little pulley here and a rope on it and there kind of wet the best Johnson Space Center oh yeah very advanced great way I saw him grumbling around picking up this
Video examples
A day in the life of an...
so Pheidias orders the construction of new pulleys. After recording the additional expense and supervising the construction all afternoon, he finally arrives at the sculpture workshop.
Video examples
Best Cheetah Moments PIPE...
and he's brought some high-tech equipment so we'll just walk this piece of rope down it's two pulleys down at the bottom this is an electric lure it will test
Video examples
Nat Geo’s Stop-Motion...
of painting one of our characters is holding a cell phone and if you look carefully added everything down to the screen and the metal band around the outside is all there if you look at the pulley system that the ropes connect to those are all miniature little pulleys and they all work and they all work in
Video examples
Samantha Power: Shaking...
and yet went in and risked his life in order to save Sergio. But all they had was a woman's handbag -- literally one of those basket handbags -- and they tied it to a curtain rope from one of the offices at U.N. headquarters, and created a pulley system into this shaft in this quivering building
Video examples
Underwater Cave Diving:...
So I... I left the hot pot of tea, a light, a pulley system so you could get yourself out of the water and I headed back a few hours up to Camp Three. I got there at about one in the morning and woke everyone up and said, "We have to go on a rescue."
Video examples
Safari Live - Day 234 PIPE...
fellow just seeking far and away out of his sight late in the afternoon ki pulley returned to deal with the second intruder the and nomads charged that key pulley to protect his prize but she chose to leave the gentlemen to square
Video examples
Safari Live - Day 230 PIPE...
pulley dealt with him accordingly this morning now one other male that we have just seen from a distant stayed back with his female here and have been meeting the whole day he pulley came and said about a hundred metres away from
Video examples
The thrilling potential...
It had some strings and pulleys and some springs. What I got is basically a gesture-interface device that actually acts as a motion-sensing device made for two dollars. So, here, whatever movement I do in my physical world
Video examples
Building an Ancient,...
each pushed by perhaps a dozen men as well as horses these were connected to ropes that wound through pulley blocks up and down the lifting tower in this way a marble drum could be raised high above the streets below
Video examples
Buzz Aldrin: Mission to...
sophisticated machine it had a little pulley here and a rope on it and there kind of wet the best Johnson Space Center oh yeah very advanced great way I saw him grumbling around picking up this
Video examples
A day in the life of an...
so Pheidias orders the construction of new pulleys. After recording the additional expense and supervising the construction all afternoon, he finally arrives at the sculpture workshop.
Video examples
Best Cheetah Moments PIPE...
and he's brought some high-tech equipment so we'll just walk this piece of rope down it's two pulleys down at the bottom this is an electric lure it will test
Example 1 of 10
Quote examples
David Baszucki
American Inventor
I founded an educational software company called Knowledge Revolution. We had the first fully animated physics lab on the computer. You could take ropes, pulleys, balls and anything else you'd use in your physics textbook and the program would allow you to build anything you can think of in a physics lab.
Quote examples
Jim Peebles
Canadian Scientist
One thing that sticks in my mind is when I was a kid, and I had just learned to read, I came across one of my older sister's textbooks that explained compound pulley. I thought that was really neat, and I still do.
Quote examples
James Prescott Joule
English Physicist
The height of the pulleys from the ground was twelve yards, and consequently, when the weights had descended through that distance, they had to be wound up again in order to renew the motion of the paddle.
Quote examples
Douglas Trumbull
American Director
I'm fearless when it comes to engineering and motors and gears and pulleys and glass and artwork.
Quote examples
Emma Bull
American Writer
Coincidence is the word we use when we can't see the levers and pulleys.
Quote examples
David Baszucki
American Inventor
I founded an educational software company called Knowledge Revolution. We had the first fully animated physics lab on the computer. You could take ropes, pulleys, balls and anything else you'd use in your physics textbook and the program would allow you to build anything you can think of in a physics lab.
Quote examples
Jim Peebles
Canadian Scientist
One thing that sticks in my mind is when I was a kid, and I had just learned to read, I came across one of my older sister's textbooks that explained compound pulley. I thought that was really neat, and I still do.
Quote examples
James Prescott Joule
English Physicist
The height of the pulleys from the ground was twelve yards, and consequently, when the weights had descended through that distance, they had to be wound up again in order to renew the motion of the paddle.
Quote examples
Douglas Trumbull
American Director
I'm fearless when it comes to engineering and motors and gears and pulleys and glass and artwork.
Quote examples
Emma Bull
American Writer
Coincidence is the word we use when we can't see the levers and pulleys.
Example 1 of 5
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