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Parts of speech : Noun
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Look at the pictures. Read the information. Answer the question.
The Pulley- A simple machine
There are many kinds of simple machines. Simple machines make work easier. Pulleys are a kind of simple machine. They can be found in many things we use or see every day. Simple machines do not have a lot of parts. Pulleys are important in making work easier.
Look at the pictures. They all use pulleys. Pulleys come in many sizes. The size depends on the job to be done.
A pulley is a wheel. It is used with a rope, cord, belt or chain. If you pull on the rope, the other end goes up. Pulleys can make things go up and down and pull things. A flagpole runs on a pully. Construction cranes have pulleys. Have you ever seen someone raise a blind to see outside of a window? The blind runs on a pulley. The pictures show a blind in a room, a come-along, and a fishing pole. They all have pulleys.
Each type of pulley has a way to help make the job easier. The string on the blind is connected to the pulley and can raise or lower the blind. The come-along can be attached to a heavy object. By cranking the come-along, the pulley will move the object for you. With a fishing pole, the pulley helps to bring in the fishing line to make it easier to pull in the fish you catch.
Jobs and tasks would be much harder without the use of pulleys. Pulleys help people in many ways.
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