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Ramps and Wedges
     

Ramps and Wedges

by David Glover
 

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How are a water slide and a ski jump alike? Why is pushing something along a ramp much easier than lifting it in the air? Why do skis zigzag down a hill? How can a simple wedge stop an airplane? This book answers these questions and shows you how different kinds of these two simple machines are all around you to make your work and play easier.

Overview

How are a water slide and a ski jump alike? Why is pushing something along a ramp much easier than lifting it in the air? Why do skis zigzag down a hill? How can a simple wedge stop an airplane? This book answers these questions and shows you how different kinds of these two simple machines are all around you to make your work and play easier.

Product Details

ISBN-13:
9781403485656
Publisher:
Heinemann
Publication date:
04/28/2006
Series:
Simple Machines Series
Edition description:
New
Pages:
24
Product dimensions:
7.90(w) x 10.72(h) x 0.36(d)
Age Range:
7 - 9 Years

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