Energy

Louise Spilsbury, Richard Spilsbury

Description

Energy comes in many forms, and we depend on it in many ways. This book explores the different forms of energy, looking at how it can be transferred and used.

Informations

• Publié par: Capstone Global Library
• Date de parution: 18 juillet 2013
• Nombre de lectures: 0
• EAN13: 9781406270181
• Langue: English
• Poids de l'ouvrage: 28 Mo

Extrait

Essential Physical Science

Richard and Louise Spilsbury

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Text © Capstone Global Library Limited 2014 First published in hardback in 2014 The moral rights of the proprietor have been asserted.

All rights reserved. No part of this publication may be reproduced in any form or by any means (including photocopying or storing it in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright owner, except in accordance with the provisions of the Copyright, Designs, and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency, Saron House, 6–10 Kirby Street, London EC1N 8TS (www. cla.co.uk). Applications for the copyright owner’s written permission should be addressed to the publisher.

Edited by Nancy Dickmann, Adam Miller,  and Diyan Leake Designed by Victoria Allen Original illustrations © Capstone Global  Library Ltd 2014 Illustrated by H L Studios Picture research by Ruth Blair Originated by Capstone Global Library Ltd Printed in and bound in China by CTPS

ISBN 978 1 406 25989 6 17 16 15 14 13 10 9 8 7 6 5 4 3 2 1

British Library Cataloguing in Publication Data Spilsbury, Louise.  Energy. -- (Essential physical science)  1. Power resources--Juvenile literature. 2. Force  and energy--Juvenile literature.  I. Title II. Series III. Spilsbury, Richard, 1963-  333.7’9-dc23

Acknowledgements We would like to thank the following for permission to reproduce photographs: Alamy pp. 11 (© Poelzer Wolfgang), 22 (© Brandon Cole Marine Photography), 38 (© Global Warming Images); Capstone Publishers (© Karon Dubke) pp. 12, 13, 24, 25, 40, 41; Corbis pp. 15 (© Bill Stormont), 31 (© Marc Müller/dpa), 32 (© Michael Rosenfeld/ Science Faction), 36 (© Ashley Cooper), 43 (© Laurent Gillieron/epa); Getty Images pp. 5 (Vegar Abelsnes Photography), 6 (Sandra Mu), 10 (Dorling Kindersley), 16 (Digital Vision), 18 (Steve Bonini), 21 (Oxford Scientic ), 23 (Chip Somodevilla), 28 (Stuart Dee), 37 (Christian Aslund ), 39 (Javier Larrea), 42 (Environment Images/UIG); Science Photo Library p. 19 (Power and Syred); Shutterstock pp. 4 (© Bychkov Kirill Alexandrovich), 9 (© Yury Zap), 14 (© steve estvanik), 17 (© Edyta Pawlowska), 20 (© Ozerov Alexander), 26 (© Khoroshunova Olga ), 29 (© eyeidea ), 30 (© fotostory), 34 (© TonyV3112).

Cover photograph of an eruption of lava on Mount Sakurajima, Japan, reproduced with permission of Corbis (© Richard Roscoe/Stocktrek Images).

Every eort has been made to contact copyright holders of material reproduced in this book. Any omissions will be rectied in subsequent printings if notice is given to the publisher.

Disclaimer All the internet addresses (URLs) given in this book were valid at the time of going to press. However, due to the dynamic nature of the internet, some addresses may have changed, or sites may have changed or ceased to exist since publication. While the author and publisher regret any inconvenience this may cause readers, no responsibility for any such changes can be accepted by either the author or the publisher.

Contents

What is energy? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 What is heat energy? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 What are sound and light energy? . . . . . . . . . . . . . . . . . . . 16

What is chemical energy? . . . . . . . . . . . . . . . . . . . . . . . . . . 22 How do we convert fuels to electricity? . . . . . . . . . . . . . . . . 28 What is renewable energy? . . . . . . . . . . . . . . . . . . . . . . . . . 34 Is energy use changing? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Find out more. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Eureka moment! Learn about important discoveries that have brought about further knowledge and understanding.

Some words are shown in bold,like this. You can find out what they mean by looking in the glossary.

i know Discover fascinating facts about energy.

WHAT’S NEXT?

Read about the latest research and advances in essential physical science.

PH

What is energy? Feeling full of energy? We cannot see energy but we know what it does. Energy makes things happen or work. For example, it makes animals move, plants grow, eggs cook, lights glow, and car wheels spin, and it keeps homes warm. I L I N

Forms of energy Energy is not all of the same form or type. For example, is the energy stored within substances chemical energy fuels en w. It is released after we eat, or w such as food or , whichis the mechanical energy burn fuels. Another form is energy in the moving parts of machines such as jet engines. Other forms of energy are heat, sound, light, and . electrical energy

WHAT’S NEXT?

Scientists have developed a special type of black paper that can store electrical energy for when it is needed, like a battery. However, it is flexible and takes up very little space.

4

Energy is released when hot, melted rock from under the ground bursts from the Earth’s surface as a volcano erupts.