ZBIRKA POTPUNO RIJEŠENIH ZADATAKA
Fiz--7--PDF - MIM-Sraga
Fiz--7--PDF - MIM-Sraga
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Fizika-7<br />
Ogledni primjeri riješenih zadataka:<br />
14.<br />
Pretvorite u milimetre:<br />
a) 2 m 3 dm 1 cm<br />
b) 8 m 5 dm 7 cm<br />
c) 12 m 32 dm 18 cm<br />
d) 72 m 61 dm 13 cm<br />
e) 3 km 27 m 6 cm<br />
Rj.<br />
a) 2 m 3 dm 1 cm možemo napisati kao 2 m + 3 dm + 1 cm<br />
2 m = 2⋅1000 mm = 2 000 mm<br />
3 dm = 3⋅100 mm = 300 mm<br />
1 cm = 1⋅10 mm = 10 mm<br />
Sada možemo zapisati i izračunati:<br />
2 m 3 dm 1 cm = 2 m + 3 dm + 1 cm<br />
= 2 000 mm + 300 mm + 10 mm<br />
= 2 310 mm<br />
b) 8 m 5 dm 7 cm = 8 m + 5 dm + 7 cm<br />
8m = 8⋅1 000 mm = 8 000 mm<br />
5 dm = 5⋅100 mm = 500 mm<br />
7 cm=710 ⋅ mm=70 mm<br />
8 m 5 dm 7 cm = 8 m + 5 dm + 7 cm<br />
= 8 000 mm+ 500 mm + 70 mm<br />
= 8 570 mm<br />
c) 12 m 32 dm 18 cm = 12 m + 32 dm + 18 cm<br />
12 m = 12⋅1 000 mm = 12 000 mm<br />
32 dm = 32⋅100 mm = 3 200 mm<br />
18 cm = 18⋅10 mm = 180 mm<br />
12 m 32 dm 18 cm = 12 m + 32 dm + 18 cm<br />
= 12 000 mm + 3 200 mm + 180 mm<br />
= 15 380 mm<br />
Ivana Sraga<br />
9<br />
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