1. He aho noa iho te pendulum, e 40 cm te roa, ā, e 100 karamu te taumaha e iri ana ki te pito o raro o te aho. Mēnā ko te whakaterenga nā te kaha ā-papa he 10 m/s2 Nō reira, ko te wā me te auau o te pendulum māmā ko...
Kōrero
E mōhiotia ana :
Te roa o te taura (l) = 40 cm = 0,4 mita
Te whakaterenga nā te kaha ā-papa (g) = 10 m/s2
I pātaihia : Wā (T) me te auau (f)
5 Ngā Tauira o ngā Raru Āhuatanga-Taumahatanga o te Modulus of Elasticity a Young
1. Ka tōia he taura nairona, 2 mm te whānui, me te kaha o te 100 Newtons. Tātaihia te kume o te taura!
Kōrero
E mōhiotia ana :
Te kaha kume (F) = 100 Newton
Te whānui o te taura (d) = 2 mm = 0,002 mita
Te whānui o te taura (r) = 1 mm = 0,001 mita
I pātaihia Te kukū o te taura
7 Ngā tauira o ngā pātai mō te kaha o te pūnga pereti whakarara
1. He pūnga pereti whakarara me te kaha o C, he ε te āheinga korehauo, te horahanga whakawhiti-wāhanga A me te tawhiti i waenga i ngā pereti d. Mēnā ka whakanuia te horahanga whakawhiti-wāhanga o te pūnga ki te 4 ngā wā, ka huri te tawhiti i waenga i ngā pereti ki te 2d, ā, ka huri te āheinga korehau ki te 5εo, nō reira te kaha o te pūnga pereti whakarara ka huri hei…
Kōrero
9 Ngā tauira o ngā raruraru o te miihini wera (te whakamahinga o te ture tuarua o te thermodynamics)
1. I roto i te huringa kotahi, ka mimitihia e te miihini te 3000 Joule o te wera mai i te puna wera-teitei, ā, ka panaia te 1000 Joule o te wera ki te puna wera-iti. Tātaihia te whai huatanga o te miihini wera!
Kōrero
Mīhini wera Kāore te kupu "carnot" i roto i ngā pātai o tēnei whārangi i rite ki te miihini Carnot. He miihini wera pai te miihini Carnot, ā, he ariā anake tōna noho. He rerekē, ko te miihini wera e kōrerohia ana i roto i tēnei pātai he miihini wera tūturu, ehara i te miihini wera ariā (te miihini Carnot).
11 Ngā tauira pātai mō te whakamahinga o te ture tuatahi o te thermodynamics ki ngā tukanga thermodynamic rerekē (isobaric, isothermal, isochoric)
1. E whakaatu ana te kauwhata i raro nei i te huringa wera-pūnaha e pā ana ki tētahi hau. Ko te mahi i mahia e te hau i roto i te tukanga ABCD ko…
Kōrero
E mōhiotia ana :
Pēhanga 1 (P1) = 2 x 105 Pa
Pēhanga 2 (P2) = 4 x 105 Pa
Pukapuka 1 (V)1) = 1 mita3
Pukapuka 2 (V)2) = 3 mita3
I pātaihia Te mahi i mahia e te hau i roto i te tukanga huringa ABCD
Whakautu :
Te mahi i mahia e te hau = te horahanga o te tapawhā hāngai ABCD.
W = (P2 - P1)(V2 - V1)
W = (4 x 105 - 2 x 105)(3 – 1)
W = (2 x 105)(2)
W = 4 x 105 Joule
Ko te mahi i mahia e te hau i roto i te tukanga huringa ABCD he 4 x 105 Joule.
3 Ngā tauira pātai mō te whakamahinga o te ture tuatahi o te thermodynamics i roto i ngā tukanga isochoric (rōrahi pumau)
1. Kauwhata o te pēhanga (P) ki te rōrahi (V) o tētahi hau e pāngia ana e te tukanga isochoric. Ko te mahi i mahia e te hau i roto i te tukanga AB ko…
Kōrero
Tukanga AB = tukanga isochoric (rōrahi pumau). I te rōrahi isochoric, kāore te rōrahi o te hau (me te rōrahi o te wāhi) e rerekē, nō reira kāore he mahi e mahia ana e te hau.
2. E toru ngā mole o te hau monoatomic i te pāmahana o te 47 o C me te pēhanga o te 2 x 10 5 Pascal ka pāngia e te tukanga isochoric tae noa ki te pikinga o te pēhanga ki te 3 x 10 5 Pascal. Ko te huringa o te pūngao ā-roto o te hau ko… Pūmau hau whānui (R) = 8,315 J/mol.K
5 ngā tauira o te whakamahi i te ture tuatahi o te thermodynamics ki ngā tukanga isothermal (pāmahana pumau)
1. E whakaatu ana te kauwhata i raro nei i tētahi hau pai e haere ana tukanga isothermal (huarahi). Ko te mahi i mahia e te hau i roto i te tukanga AB ko…
Kōrero
Mahi i oti = horahanga i raro i te pihi AB = horahanga o te tapatoru + horahanga o te tapawhā hāngai
W = [½ (8 x 105–4 x 105)(3-1)] + [4 x 105 (3-1)]
W = [½ (4 x 105)(2)] + [4 x 105 (2)]
W = [4 x 105] + [8 x 105]
W = 12 x 105 Joule
6 Ngā tauira pātai mō te whakamahinga o te ture tuatahi o te thermodynamics ki ngā tukanga isobaric (pēhanga pumau)
1. Kauwhata pēhanga (P) – rōrahi (V) o tētahi hau e pāngia ana e te tukanga isobaric. Ko te mahi i mahia e te hau i roto i te tukanga AB ko…
Kōrero
E mōhiotia ana :
Pēhanga (P) = 5 x 105 N / m2
Te rōrahi tīmatanga (V1) = 2 mita3
Rōrahi whakamutunga (V2) = 6 mita3
I pātaihia mahi i mahia i roto i te tukanga AB
3 Ngā tauira pātai mō te ture tuatahi o te thermodynamics
1. E 3000 Joule te wera e tāpirihia ana ki tētahi pūnaha, ā, e 2500 Joule te mahi a te pūnaha ki te taiao. Ko te huringa o te pūngao ā-roto o te pūnaha ko…
Kōrero
E mōhiotia ana :
Wera (Q) = +3000 Joules
Mahi (W) = +2500 Joules
I pātaihia : ngā huringa o te pūngao ā-roto
Whakautu :
19 Ngā Tauira o ngā Pātai mō te Ariā Kinetic o ngā Hau
1. Ko te pēhanga o te hau pai i roto i tētahi ipu kua kati i te tīmatanga he P, ā, ko te rōrahi he V. Mēnā ka whakanuia te pēhanga o te hau ki te 4 ngā wā i tōna āhua taketake, ā, ka noho pūmau tonu te rōrahi o te hau, ko te ōwehenga o te pūngao nekeneke tīmatanga me te pūngao nekeneke whakamutunga o te hau ko...
Kōrero
E mōhiotia ana :
Pēhanga tuatahi (P1) = P
Pēhanga whakamutunga (P2) = 4P
Te rōrahi tīmatanga (V1) = V
Rōrahi whakamutunga (V2) = V