Mitemo inokosha yemunhu

Chinyorwa Nezve Mitemo yeZviverengero Zvakakosha

Nhamba dzakakosha inhamba dzinowanikwa kuburikidza nekuyera kunosanganisira nhamba dzakakosha (dzinoverengwa pachishandiswa chekuyera) uye nhamba imwe chete inofungidzirwa.

Ngatitii tinoyera kureba kwechinhu tichishandisa ruler (Muganho wekururama kweruler i1 mm kana 0,1 cm) totaura mhedzisiro yacho nenhamba nhatu dzakakosha, semuenzaniso 4,55 cm. Kana kureba kwechinhu kuchiyerwa uchishandisa vernier caliper (Muganho wekururama kwevernier caliper i0,1 mm kana 0,01 cm) uye mhedzisiro yacho inotaurwa nenhamba ina dzakakosha, semuenzaniso 4,485 cm uye kana ikayerwa ne micrometer screw gauge (Muganho wekururama kwe micrometer screw gauge i0,01 mm kana 0,001 cm) uye mhedzisiro yacho inotaurwa nenhamba shanu dzakakosha, semuenzaniso 3,4845 cm. Izvi zvinoratidza kuti huwandu hwenhamba dzakakosha dzakataurwa semhedzisiro yekuyera hunoratidza kururama kwekuyera. Nhamba dzakakosha dzinogona kutaurwa, ndiko kwakanyatsojeka kwekuyera. Ehe, kuyera kureba kwechinhu ne micrometer screw gauge kwakarurama kupfuura ne vernier caliper neruler.

Mhedzisiro yekuyera uchishandisa ruler inoratidzwa munhamba ine nhamba mbiri dzakakosha: 4,55 cm. Nhamba mbiri dzekutanga, dzinoti: 4 ne5 inhamba chaidzo nekuti dzinogona kuverengwa pachikero, nepo nhamba yekupedzisira, iyo 5, iri nhamba inofungidzirwa nekuti nhamba iyi haigone kuverengwa pachikero, asi inogona kungofungidzirwa chete.

  1. Manhamba ese asiri zero manhamba akakosha.
  2. Ziro pakati pemanhamba maviri asiri zero inhamba inokosha. Muenzaniso: 1208 ine nhamba ina dzakakosha. 2,0067 ine nhamba shanu dzinokosha.
  3. Ma zero anoshandiswa senzvimbo dzedesimali chete haasi manhamba akakosha. Muenzaniso: 0,0024 ine nhamba mbiri dzakakosha, dzinoti 2 ne4
  4. Mazero ese ari mumutsara wekupedzisira wenhamba akanyorwa mushure mepoindi yedesimali inhamba dzinokosha. Muenzaniso 1 : 0,003200 ine nhamba ina dzakakosha, dzinoti 3, 2 uye zero mbiri mushure menhamba 32. Muenzaniso 2 : 0,005070 ine nhamba ina dzakakosha, dzinoti 5,0,7,0Muenzaniso 3 :  20,0 ine nhamba mbiri dzakakosha, dzinoti 2 na 0
  5. Nhamba dzese dziri pamberi peordinal (munongedzo yesainzi) inhamba dzakakosha. Muenzaniso: 3,2 x 105 ine nhamba mbiri dzakakosha, dzinoti 3 ne2. 4,50 x 103 ine nhamba nhatu dzakakosha, dzinoti 4, 5 na 0
VERENGA ZVIMWEWO  Mienzaniso yeMibvunzo Inokurukura Hunhu hweAtomic Nucleus

 

Mitemo yekuwanda nekukamuranisa nhamba dzakakosha

Mhedzisiro yekuwanda kana kupatsanura inofanira kunge iine nhamba dzakawanda senhamba ine nhamba shoma dzenhamba dzakakosha dzinoshandiswa mukuwanda kana kupatsanura…

Mienzaniso yeKuwanza kweZvifananidzo Zvakakosha

Muenzaniso 1: 3,4 x 6,7 = … ?

Nhamba shoma yenhamba dzakakosha imbiri (3,4 na6,7 dzine nhamba mbiri dzakakosha). Mhedzisiro yacho i22,78. Mhedzisiro iyi inofanira kutenderedzwa kusvika pa23 (nhamba mbiri dzakakosha). 3,4 x 6,7 = 23

Muenzaniso 2: 2,5 x 3,2 = … ?

Nhamba diki yenhamba dzakakosha imbiri (2,5 na3,2 dzine nhamba mbiri dzakakosha). Kana tikaverenga tichishandisa karukureta, mhedzisiro yacho i8. Tinofanira kuwedzera zero. 2,5 x 3,2 = 8,0 (nhamba mbiri dzakakosha)

VERENGA ZVIMWEWO  Kudzivirira simba remagetsi (emf) mumagetsi ekupedzisira

Muenzaniso 3: 1,0 x 2,0 = 2,0 (nhamba mbiri dzakakosha), kwete 2

Muenzaniso wekupatsanurwa kwakakosha kwezvimiro:

Muenzaniso 1: 2,0 : 3,0 = …. ?

Nhamba diki yenhamba dzakakosha imbiri. Kana ukashandisa karukureta, mhedzisiro yacho i0,666666… iyo inofanira kutenderedzwa kuita nhamba mbiri dzakakosha chete: 2,0 : 3,0 = 0.67 ( nhamba mbiri dzakakosha, dzinoti 6 na7).

Muenzaniso 2: 2,1 : 3,0 = …. ?

Nhamba diki yenhamba dzakakosha imbiri. Kana ukashandisa karukureta, mhedzisiro yacho i0,7. Ziro inofanira kuwedzerwa kuti uve nechokwadi chekuti pane nhamba mbiri dzakakosha. 2,1 : 3,0 = 0.70 ( nhamba mbiri dzakakosha: 7 na 0).

Mitemo yekuwedzera nekubvisa nhamba dzinokosha

Pamusoro pekuwedzera kana kubvisa, mhedzisiro haifanirwe kunge yakarurama kupfuura nhamba isina kunyatsojeka.

Muenzaniso 1: 3,7 – 0,57 = …?

3,7 ndiyo isina kunyatsojeka. Kana ukashandisa karukureta, mhedzisiro yacho i3,13. Mhedzisiro iyi yakarurama kupfuura 3,7, saka inofanira kutenderedzwa kuita 3,1. 3,7 - 0,57 = 3,1

Muenzaniso wechipiri: 10,24 + 32,451 = …… ?

10,24 ndiyo isina kunyatsojeka. Kana ukashandisa karukureta, mhedzisiro yacho i42,691. Mhedzisiro iyi yakarurama kupfuura 10,24, saka inofanira kutenderedzwa kusvika pa42,69. 10,24 + 32,451 = 42,69

VERENGA ZVIMWEWO  Muenzaniso wemutemo waHooke

Muenzaniso 3: 10,24 + 32,457 + 2,6 = …. ?

2,6 ndiyo isina kunyatsojeka. Kuasanganisa pamwe chete kunopa 45,297. Mhedzisiro iyi yakarurama kupfuura 2,6, saka inofanira kutenderedzwa kusvika ku45,3. 10,24 + 32,457 + 2,6 = 45,3

Huwandu hwenhamba dzakakosha mumhedzisiro yekuwedzera kana kubvisa hazvina basa.

Muenzaniso wezvinetso

1. Mhedzisiro yekuyera kureba nehupamhi hwenzvimbo ine rectangular ndeye 12,23 m uye 14,3 m. Nzvimbo yenyika maererano nemitemo yenhamba dzakakosha ndeye…..
A. 175,8890 m2
B. 175,889 m2
C. 175,89 m2
D. 175,8 m2
E. 175 m2
Kukurukurirana
Nzvimbo = 12,23 x 14,3 = 174,889 m2
Mutemo wehuwandu hunokosha mukuwanda: huwandu hwehuwandu hunokosha mumhedzisiro hunofanira kunge hwakawanda sehuwandu hushoma hunokosha munhamba dziri kupetwa. 12,23 ine huwandu hunokosha huna, uye 14,3 ine huwandu hunokosha hutatu. Huwandu hushoma hunokosha ndi3, saka mhedzisiro inofanirawo kunge iine huwandu hutatu hunokosha.

174,889 ine nhamba 6 dzakakosha, saka inofanira kutenderedzwa kusvika panhamba nhatu dzakakosha chete = 175.
Mhinduro chaiyo ndiE.

2. Pakuyera kureba kwechinhu, mhedzisiro yekuyera ndeye 0,08020 metres. Huwandu hwe nhamba dzakakosha Mhedzisiro yekuyera ndeye…
A. imwe
B. mbiri
C. nhatu
D. mana
E. shanu
Kukurukurirana
Zvichienderana nemitemo yenhamba dzakakosha, nhamba yenhamba dzakakosha mu0,08020 ina (0,08020)

Print Friendly, PDF & Email