Huwandu hwezvinhu zvemuviri Zviyero zveZviyero - Matambudziko neMhinduro

Huwandu hwezvinhu zvemuviri Zviyero zveZviyero - Matambudziko neMhinduro

1.

Huwandu hwemuviri, mayuniti, zviyero - matambudziko nemhinduro 1

Zvichibva patafura iri pamusoro, huwandu hupi hune mayuniti chaiwo uye saizi.

Solution:

1) Kukurumidza

Equation ye momentum ndeye p = mv

p = simba, m = uremu , v = kumhanya

Chiyero chehukuru = M uye chiyero chekukurumidza = L/T = LT -1 saka chiyero chekukurumidza = MLT -1

Chikamu chepasi rose che momentum = kg m/s = kg ms -1

2) Simba

Equation yesimba ndeye F = ma

F = simba, m = uremu , a = kukurumidza

Chiyero chehuremu = M uye chiyero chekumhanyisa = L/T 2 = LT -2 saka chiyero chesimba iMLT -2

Chikamu chesimba repasi rose i kg m/s 2 = kg ms -2

3) Simba

Equation yesimba ndeye W = F d

W = basa, F = simba, d = kutama

Chiyero chesimba = MLT -2 uye chiyero chekutama ndiL saka chiyero chebasa ndeche [M][L][T] -2 [L] = [M][L] 2 [T] -2

Equation yesimba ndeye P = W/t

P = simba, W = basa, t = nguva

Chiyero chebasa = [M][L] 2 [T] -2 uye chiyero chenguva = [T] saka chiyero chesimba = [M][L] 2 [T] -2 / [T] = [M][L] 2 [T] -2 [T] -1 = [M][L] 2 [T] -3

Chikamu chesimba repasi rose i kg m 2 /s 3 = kg m 2 s -3

2. Zvichibva patafura iri pazasi, huwandu hune mayuniti akakodzera uye saizi dzakakodzera….

Huwandu hwemuviri, mayuniti, zviyero - matambudziko nemhinduro 1

Solution:

Equation ye momentum ndeye p = mv.

Chiyero chehukuru (m) ikirogiramu (kg) uye chiyero chekukurumidza (v) imita pasekondi (m/s) saka chiyero chekukurumidza i kg m/s kana kg m/s . Kilogiramu chiyero chehukuru nechiyero che [M], mita iyuniti yehurefu nechiyero che [L], chechipiri iyuniti yenguva nechiyero che [T] saka chiyero chekukurumidza i [M][L]/[T] kana [M][L][T] -1.

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Equation yesimba ndiF = ma.

Chiyero cheMass (m) ikirogiramu (kg) uye chiyero chekumhanyisa (a) imita pasekondi imwe neimwe yakaenzana nemativi mana (m/s 2 ) saka chiyero chesimba i kg m/s 2 kana kg ms -2 . Chiyero chehuremu ikirogiramu ine chiyero che [M], chiyero chehurefu imita ine chiyero che [L], chiyero chenguva ndechechipiri chine chiyero che [T] saka chiyero chesimba i [M][L]/[T] 2 kana [M][L][T] -2

Equation yesimba ndiP = W/t , equation yebasa ndiW = F s, equation yesimba ndiF = m a.

Chiyero chehuremu ikirogiramu (kg), chiyero chekumhanyisa imita pasekondi imwe neimwe (m/s 2 ) kuitira kuti chiyero chesimba i kg m/s 2. Chiyero chekutama i mita (m), chiyero chesimba i kg m/s 2 kuitira kuti chiyero chebasa i kg m/s 2 xm = kg m 2 /s 2. Chiyero chenguva i sekondi (s), chiyero chebasa i kg m 2 /s 2 kuitira kuti chiyero chesimba i kg m 2 /s 2 : s = kg m 2 /s 3 kana kg m 2 s -3.

Chiyero chehuremu ikirogiramu ine chiyero che [M], chikamu chehurefu imita ine chiyero che [L], chikamu chenguva ndechechipiri nechiyero che [T] saka chiyero chesimba i [M][L] 2 /[T] 3 kana [M][L] 2 [T] -3.

3. Simba rinotsanangurwa sechiyero chinoitwa basa. Kana kuti simba inhamba yebasa nenguva. Sarudza chiyero chesimba.

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Solution:

Kuenzanisa kwesimba:

Hunhu hwemuviri, mayuniti, matambudziko ehukuru 3

W = basa, F = simba, a = kumhanyisa, v = kumhanya, d = daro, t = nguva

m = huremu ( chiyero chehuremu = M), d = daro (chiyero chedaro = L), t = nguva (chiyero chenguva = T).

Chiyero chesimba:

Huwandu hwemuviri, mayuniti, zviyero - matambudziko nemhinduro 4

  1. Chii chinonzi huwandu hwemuviri?
    • Pindura: Huwandu chaihwo hunhu hwechinhu kana sisitimu inogona kuverengwa nekuyerwa. Mienzaniso inosanganisira huremu, kureba, nguva, tembiricha, uye simba.
  2. Sei mayuniti achikosha pakuyera huwandu hwemuviri?
    • Pindura: Zviyero zvinopa nzira yakajairika yekuratidza hukuru hwehuwandu chaihwo. Zvinovimbisa kujeka, kururama, uye kuenderana kwezviyero, zvichiita kuti kutaurirana kwakajeka uye kunzwisisana pakati pevasayendisiti nemainjiniya pasi rese kuitike.
  3. Ndeupi musiyano uripo pakati pehuwandu hwekutanga (kana hwehwaro) nehuwandu hwakatorwa?
    • Pindura: Huwandu hwekutanga huwandu hwepakutanga hunosarudzwa hwakazvimiririra uye hunoumba hwaro hwezvimwe zviyero. Mienzaniso inosanganisira kureba, huremu, nenguva. Huwandu hunotorwa hunoumbwa kubva mukubatanidzwa kwehuwandu hwekutanga uhwu, senge nzvimbo (kureba x upamhi) kana kumhanya (daro/nguva).
  4. Zviyero zvipi? Zvinobatana sei nehuwandu hwemuviri?
    • Pindura: Zviyero zvinoreva hunhu uye rudzi rwehuwandu hwemuviri (semuenzaniso, [L] kureba, [M] uremu, [T] nguva). Izvi zvinomiririra simba iro huwandu hwakakosha hunosimudzirwa kuti humiririre huwandu hwakati hwemuviri.
  5. Chii chinorehwa ne "dimensional formula" yehuwandu hwemuviri?
    • Pindura: Fomura ine divi rinoratidza hukama hwehuwandu hwemuviri maererano nehukuru hwayo. Semuenzaniso, fomura ine divi rinoratidza kumhanya kwemhepo ndeye , zvichiratidza kuti kumhanya kunobva pakureba ([L]) kwakakamurwa nenguva ([T]).
  6. Sisitimu yeSI (International System of Units) inokosha sei mune zvesainzi neinjiniya zvemazuva ano?
    • Pindura: Sisitimu yeSI inopa seti yemayuniti akajairwa anogamuchirwa pasi rose ekuyera huwandu hwemuviri. Izvi zvinovimbisa kufanana, zvinoderedza kuvhiringidzika, uye zvinogonesa kushanda pamwe chete pakati pemasayendisiti nemainjiniya pasi rese.
  7. Ndeupi musiyano uripo pakati pe scalar nehuwandu hwevector?
    • Pindura: Huwandu hwe scalar hune hukuru chete (semuenzaniso, huremu, tembiricha), nepo huwandu hwe vector hune hukuru uye gwara (semuenzaniso, velocity, simba).
  8. Sei tisingakwanise kushandisa mayuniti asina kurongeka kuyera huwandu hwezvinhu?
    • Pindura: Kushandisa mayuniti asina kurongeka kwaizokonzera kuvhiringidzika, kushaya kuenderana, uye kusanzwisisana zvakanaka mukuyera nekuverenga kwesainzi. Mayuniti akajairwa anoita kuti zviyero zvinzwisiswe nevanhu vose uye zvienzane.
  9. Kuongorora mativi kunogona sei kubatsira mufizikisi?
    • Pindura: Kuongororwa kwezviyero zvemuviri kunobatsira kuona kururama kwezviyero zvemuviri nekutarisa kuenderana kwezviyero kumativi ese eequation. Inogona zvakare kushandiswa kuwana hukama pakati pehuwandu hwakasiyana hwemuviri.
  10. Sei mamwe mazinga, akadai se refractive index kana coefficient of friction, achionekwa seasina dimension?
  • Pindura: Huwandu husina divi rimwe chete hunoreva huwandu hwakafanana, saka divi rimwe chete hunobva hwapera. Semuenzaniso, refractive index iratidziro yekumhanya kwechiedza mu vacuum nekumhanya kwacho mu medium. Sezvo zvese zviri kumhanya, divi rimwe chete rinodzima, zvichiita kuti refractive index isapararire.
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