1(km ) 1000(m )
1(g ) 10(dg )
3600(s ) 1(h )
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% 1000(m ) =3000 m 1(km )
* 3km = 3(km)路 * 12h = 12(h)路
3600(s ) = 43200s 1(h )
* 80Hg = 80(Hg )路
100(g ) =8000 g 1(Hg )
* 10cm 3 = 10(cm 3 )路
1( m 3 ) =0,00001m 3 1000000(cm 3 )
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% * 120km / h = * 20m / s =
120(km ) 1000(m ) 1(h ) · · =33,3 m / s 1(h ) 1(km ) 3600(s )
20(m ) 1(km ) 3600(s ) · · =72km / h 1(s ) 1000(m ) 1(h )
* 5g / cm 3 =
5( g ) 1( kg ) 1000000(cm3 ) · · =5000 kg / cm 3 1(cm 3 ) 1000( g ) 1( m 3 )
* 2000kg / m 3 = * 10g / L =
2000( kg ) 1000( g ) 1( m 3 ) = 2g / cm 3 · · 3 1( kg ) 1000000(cm 3 ) 1( m )
10(g ) 1(L ) · = 0,01g / cm 3 1(L ) 1000(cm 3 )
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