出版時間:2002-1 出版社:天津科技翻譯出版公司 作者:伯內(nèi)特 頁數(shù):190
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內(nèi)容概要
《美國中學生科學實驗活動:我們身邊的電學與電子學知識(英漢對照·雙語讀物)》介紹的一些科學概念,對學生們理解更深奧的科學原理會有很大幫助,所設(shè)置的科技活動將會開發(fā)學生的科學研究技能,而這些技能是我們這個繁雜的社會所必不可少的??茖W研究技能包括:對物體進行分類的技能,分析觀測結(jié)果的技能,清晰思考的技能,準確記錄數(shù)據(jù)的技能,以及按照正確方法處理記錄值的技能。人們絕不應該為著自己的利益去傷害任何其他的生物。絕不應輕率而不必要地破壞或毀壞自然過程。一定要避免對生態(tài)系統(tǒng)的干擾或干預。
書籍目錄
PROJECTSECTION 1:ELECTROMAGNETIC FORCES1-1 Attractive Force Relationship of wire turns to attraction in electromagnet1-2 Filed Under Current Magnetic lines of flux and magnet's DC polarity1-3 Short Stop in a Magnetic Field Electrical insulators not necessarily magnetic msulators1-4 Rust in Pieces Comparing magnetic properties of iron and rust1-5 Directional Flux Inducing current using south or north magnetic poles1-6 Stroke of Good Luck Inducing magnetism in iron by stroking with permanent magnet1-7 Don't Lose Your Cool Magnetism loss due to heatSECTION 2:STATIC ELECTRICITY2-1 Too Close for Comfort Static electricity on TV screens2-2 Snap, Crackle, Pop Detecting approaching thunderstorms2-3 Too "Clothes" for Comfort Static electricity in clothing material2-4 Grounded Again Removing static charges in clothing by grounding2-5 Tea for Two Electros.tatc generation (Van de Graaff generator)2-6 Static North Pole Magnetic properties of static electronsSECTION 3:CURRENT FLOW3-1 Volts and Amps Understanding the concepts of voltage and amperage3-2 Wet-Cell Battery Testing electrolytes to make wet-cell batteries3-3 After the Warm-Up The effect of temperature on battery life3-4 Keeps On Keeping On Comparing popular brands of batteries3-5 Live-Wire Wood Insulators become conductors under certain conditions3-6 The Match Box Series circuit becomes teaching aid for other subjects3-7 Current Event Fuses protect from excess currpnt flowSECTION 4:ELECTROMECHANICAL DEVICES,MOTORSSECTION 5:PESISTANCE AND CAPACITANCESECTION 6:GENERATING ELECTRICITYSECTION 7:SOLID-STATE ELECTRONICSSECTION 8:RADIO-FREQUENCY ENERGYCOMPONENTSGLOSSARY
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