Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 20
... iron and iron oxide is formed . This iron oxide , called rust , is different from iron . It is brittle , has a different color , and is not as strong as iron . It is a material dif- ferent from iron and oxygen . Two substances , iron ...
... iron and iron oxide is formed . This iron oxide , called rust , is different from iron . It is brittle , has a different color , and is not as strong as iron . It is a material dif- ferent from iron and oxygen . Two substances , iron ...
Σελίδα 184
... iron filings on the cardboard . Result ? S Z N S FIGURE 5-6 The lines of one field do not enter the other . The lines act like springs pushing against each other . ACTIVITY Place the north pole of one magnet near the south pole of the ...
... iron filings on the cardboard . Result ? S Z N S FIGURE 5-6 The lines of one field do not enter the other . The lines act like springs pushing against each other . ACTIVITY Place the north pole of one magnet near the south pole of the ...
Σελίδα 185
... iron induced magnetism . Let use see what caused the piece of soft iron to act like a magnet . It is found that the soft iron has magnetic poles when it is near another magnet . The part of the soft iron nearest the north pole of the ...
... iron induced magnetism . Let use see what caused the piece of soft iron to act like a magnet . It is found that the soft iron has magnetic poles when it is near another magnet . The part of the soft iron nearest the north pole of the ...
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UNIT | 49 |
distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire