美国加州教材 Glencoe Science - Module M - Motion, Forces, And Energy - Mcgraw-hill 2005.pdf

Gunter Marx Photography/CORBIS i-01-LBM-861770 08/17/2004 6:47 AM Page iMotion,Forces,and EnergyThis kayaker battles the rapidson the Thompson River inBritish Columbia,Canada.Akayaker takes advantage ofNewtons third law.The paddleexerts a force on the water andthe water exerts an equal,butopposite,force on the kayaker.Send all inquiries to:Glencoe/McGraw-Hill8787 Orion PlaceColumbus,OH 43240-4027ISBN:0-07-861770-7Printed in the United States of America.2 3 4 5 6 7 8 9 10 027/111 09 08 07 06 05 04Copyright 2005 by The McGraw-Hill Companies,Inc.All rights reserved.Except as permitted underthe United States Copyright Act,no part of this publication may be reproduced or distributed in anyform or by any means,or stored in a database or retrieval system,without prior written permission of the publisher.The National Geographic features were designed and developed by the National Geographic SocietysEducation Division.Copyright National Geographic Society.The name“National Geographic Society”and the Yellow Border Rectangle are trademarks of the Society,and their use,without prior writtenpermission,is strictly prohibited.The“Science and Society”and the“Science and History”features that appear in this book weredesigned and developed by TIME School Publishing,a division of TIME Magazine.TIME and the redborder are trademarks of Time Inc.All rights reserved.Gunter Marx Photography/CORBIS i-01-LBM-861770 08/17/2004 6:47 AM Page iiCONTENT Jack CooperEnnis High SchoolEnnis,TXSandra K.Enger,PhDAssociate Director,AssociateProfessorUAH Institute for Science EducationHuntsville,ALCarl Zorn,PhDStaff ScientistJefferson Laboratory Newport News,VAMATH Michael Hopper,DEngManager of Aircraft Certification L-3 CommunicationsGreenville,TXTeri Willard,EdDMathematics Curriculum WriterBelgrade,MTREADING Barry BartoSpecial Education TeacherJohn F.Kennedy ElementaryManistee,MISAFETY Aileen Duc,PhDScience 8 TeacherHendrick Middle School,Plano ISDPlano,TXSandra West,PhDDepartment of BiologyTexas State University-San MarcosSan Marcos,TXACTIVITY TESTERS Nerma Coats HendersonPickerington Lakeview Jr.HighSchoolPickerington,OHMary Helen Mariscal-CholkaWilliam D.Slider Middle SchoolEl Paso,TXScience Kit and BorealLaboratoriesTonawanda,NYMiiiAuthorsSeries ConsultantsSharla AdamsIPC TeacherAllen High SchoolAllen,TXJohn BarrySeeger Jr-Sr.High SchoolWest Lebanon,IN Nora M.Prestinari BurchettSaint Luke School McLean,VAJoanne DavisMurphy High SchoolMurphy,NC Sandra EverhartDauphin/Enterprise Jr.High SchoolsEnterprise,ALLynne HuskeyChase Middle SchoolForest City,NCMichelle Mazeika-SimmonsWhiting Middle SchoolWhiting,IN Mark SailerPioneer Jr-Sr.High SchoolRoyal Center,IN Series ReviewersEducation DivisionWashington,D.C.Deborah LillieMath and Science WriterSudbury,MAThomas McCarthy,PhDScience Department ChairSt.Edwards SchoolVero Beach,FLMargaret K.ZornScience WriterYorktown,VADinah ZikeEducational ConsultantDinah-Might Activities,Inc.San Antonio,TX i-01-LBM-861770 08/17/2004 6:47 AM Page iiiWhy do I need my science book?Have you ever been in class andnot understood all of what waspresented?Or,you understoodeverything in class,but at home,got stuck on how to answer aquestion?Maybe you just wondered when you were evergoing to use this stuff?These next few pages are designed to help you understand everything your science book can be used for.besides a paperweight!Before You ReadChapter OpenerScience is occurring all around you,and the opening photo of each chapter will preview thescience you will be learning about.The ChapterPreview will give you an idea of what you will belearning about,and you can try the Launch Lab tohelp get your brain headed in the right direction.TheFoldables exercise is a fun way to keep you organized.Section OpenerChapters are divided into two to foursections.The As You Read in the margin of the firstpage of each section will let you know what is mostimportant in the section.It is divided into four parts.What Youll Learn will tell you the major topics youwill be covering.Why Its Important will remind youwhy you are studying this in the first place!TheReview Vocabulary word is a word you already know,either from your science studies or your prior knowl-edge.The New Vocabulary words are words that youneed to learn to understand this section.These wordswill be in boldfaced print and highlighted in thesection.Make a note to yourself to recognize thesewords as you are reading the section.(bkgd)John Evans,(inset)Gunter Marx Photography/CORBIS i-01-LBM-861770 08/17/2004 6:47 AM Page ivAs You ReadHeadingsEach section has a titlein large red letters,and is furtherdivided into blue titles andsmall red titles at the begin-nings of some paragraphs.To help you study,make anoutline of the headings andsubheadings.MarginsIn the margins ofyour text,you will find many helpfulresources.The Science Online exercises andIntegrate activities help you explore the topicsyou are studying.MiniLabs reinforce the sci-ence concepts you have learned.Building Skills