by Chris Oxlade


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Pulleys by Chris Oxlade

There are pulleys all around us-from the flag pole in a park to the huge cranes used on building sites. But what are pulleys, and how do they work?

Product Details

ISBN-13: 9781599202013
Publisher: Black Rabbit Books
Publication date: 01/28/2009
Series: Simple Machines (Smart Apple Media Paperback) Ser.
Pages: 32
Product dimensions: 8.00(w) x 10.10(h) x 0.20(d)
Age Range: 5 - 7 Years

About the Author

Chris Oxlade is an experienced author of non-fiction books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.

Table of Contents

What is a simple machine? 4

Pushes and pulls 6

How a pulley works 8

How pulleys work together 10

Lifting with simple pulleys 12

Heavy lifting with pulleys 14

Moving with pulleys 16

Pulleys in machines 18

Pulley wheels 20

Pulleys in the post 22

Fun with pulleys: a simple pulley 24

Fun with pulleys: a block and tackle 26

Find the pulley 28

Words to remember 30

Index 32

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