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资料简介

了解基本物理概念，探索磁场如何由电子自旋产生，并通过铁屑排列可视化展示。适合学生和教育工作者深入学习电磁理论。

• 文件名称：Glencoe Science_ Electricy and Magnetism_Glencoe McGraw-Hill.pdf

• 文件类型：PDF文档

• 文件标签：电磁学、物理学、科学教育

内容预览

Electricity and
Magnetism

Iron filings cluster around the
north and south poles of a bar
magnet because of magnetic
force. Magnetic force is exerted
through a magnetic field,
which is outlined by the iron
filings. This field is caused by
negatively charged electrons
spinning in the atoms.

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ISBN:0-07-861773-1

Printed in the United States of America.

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Copyright © 2005 by The McGraw-Hill Companies,Inc.All rights reserved.Except as permitted under
the United States Copyright Act,no part of this publication may be reproduced or distributed in any
form 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 Society’s
Education 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 written
permission,is strictly prohibited.

The “Science and Society”and the “Science and History”features that appear in this book were
designed and developed by TIME School Publishing,a division of TIME Magazine.TIME and the red
border are trademarks of Time Inc.All rights reserved.

PhotoDisc

CONTENT

Jack Cooper
Ennis High School
Ennis, TX

Carl Zorn, PhD

Staff Scientist
Jefferson Laboratory
Newport News, VA

MATH

Michael Hopper, DEng
Manager of Aircraft Certification
L-3 Communications
Greenville, TX

READING

Barry Barto
Special Education Teacher
John F. Kennedy Elementary
Manistee, MI

Rachel Swaters-Kissinger

Science Teacher
John Boise Middle School
Warsaw, MO

SAFETY

Sandra West, PhD
Department of Biology
Texas State University-San Marcos
San Marcos, TX

ACTIVITY TESTERS

Nerma Coats Henderson
Pickerington Lakeview Jr. High
School
Pickerington, OH

Mary Helen Mariscal-Cholka

William D. Slider Middle School
El Paso, TX

Science Kit and Boreal
Laboratories
Tonawanda, NY

N ◆
iii

Authors

Series Consultants

Deidre Adams
West Vigo Middle School
West Terre Haute, IN

Karen Curry
East Wake Middle School
Raleigh, NC

Anthony J. DiSipio, Jr.

8th Grade Science
Octorana Middle School
Atglen, PA

George Gabb
Great Bridge Middle School
Chesapeake Public Schools
Chesapeake, VA

Series Reviewers

Education Division
Washington, D.C.

Cathy Ezrailson
Science Department Head
Academy for Science and Health Professions
Conroe, TX

Margaret K. Zorn

Science Writer
Yorktown, VA

Dinah Zike
Educational Consultant
Dinah-Might Activities, Inc.
San Antonio, TX

Why do I need
my science book?

Have you ever been in class and
not understood all of what was
presented? Or, you understood
everything in class, but at home,
got stuck on how to answer a
question? Maybe you just
wondered when you were ever
going 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 Read

●Chapter Opener Science is occurring all around you,
and the opening photo of each chapter will pr...