Ngā Tukinga Kore-whakapūmau
Kāore e pā te ture tiaki pūngao nekeneke ki ngā tukinga kore-whakapūmau. Ka pā te ture tiaki o te nekehanga ki ngā tukinga kore-whakapūmau mēnā kāore he kaha o waho e pā ki ngā mea e rua e tukinga ana. I roto i te tukinga kore-whakapūmau, ka piri ngā mea e rua tetahi ki tetahi, ka piri rānei tetahi ki tetahi i muri i te tukinga.
Tauira pātai 1.
E rua ngā mea he rite te taumaha, arā, 1 kg. Ka neke te mea 1 i runga i te papa papatahi i te tere o te 10 m/s, ā, ka tukinga ki te mea tuarua e takoto kau ana. I muri i te tukinga, ka piri tahi ngā mea e rua. He aha te tere o ngā mea e rua i muri i te tukinga?
Mōhiotia:
m1 = 1 kg, m2 = 1 kg, v1 = 10 m/s, v2 = 0
E hiahiatia ana : v'
Rongoā:
m 1 v 1 + m 2 v 2 = (m 1 + m 2 ) v'
(1 kg)(10 m/s) + 0 = (1 kg + 1 kg) v'
10 kg m/s = (2 kg) v'
v' = 10 kg m/s : 2 kg = 5 m/s
Tauira pātai 2.
E toru ngā poraka e neke ana i te 3 ms -1 ka tukinga tētahi atu poraka e okioki ana.
He kore-whakapūmau te tukinga. Ko te raupapa o te tere o te poraka i muri i te tukinga, mai i te mea nui rawa ki te mea iti rawa ko…
Rongoā:
Pikitia 1:
Te nekehanga whakamutunga = te nekehanga tīmatanga
m 1 v 1 + m 2 v 2 = (m 1 + m 2 ) v
(4m)(3) + (m)(0) = (4m + m) v
12m + 0 = (5m) v
12m = 5m v
v = 12m / 5m = 12/5 = 2.4 m/s
Pikitia 2:
Te nekehanga whakamutunga = Te nekehanga tīmatanga
m 1 v 1 + m 2 v 2 = (m 1 + m 2 ) v
(m)(3) + (3m)(0) = (m + 3m) v
3m + 0 = (4m) v
3m = 4m v
v = 3m / 4m = 3/4 = 0.75 m/s
Pikitia 3:
m 1 v 1 + m 2 v 2 = (m 1 + m 2 ) v
(m)(3) + (m)(0) = (m + m) v
3m + 0 = (2m) v
3m = 2m v
v = 3m / 2m = 3/2 = 1.5 m/s
Tauira pātai 3.
E rua ngā pōro, ko te taumaha he m 1 = 2 kg, ko te m 2 = 1 kg te taumaha, e neke ana i te taha whakamuri, ko te tere he v 1 = 2 ms -1 , ā, ko te v 2 = 4 ms -1 , e whakaaturia ana i te pikitia i raro nei. Mēnā he kore-whakapūmau te tukinga, he aha te tere o ngā pōro e rua i muri i te tukinga?
Mōhiotia:
Taumaha o te pōro 1 (m1) = 2 kirokaramu
Taumaha o te pōro 2 (m2 ) = 1 kg
Te tere o te pōro 1 i mua i te tukinga (v 1 ) = 2 m/s
Te tere o te pōro 2 i mua i te tukinga (v 2 ) = -4 m/s
Ko ngā tohu tāpiri me ngā tohu tango e tohu ana e neke ana ngā pōro e rua i ngā ahunga rerekē.
E hiahiatia ana : Te tere o ngā pōro i muri i te tukinga (v')
Rongoā:
m 1 v 1 + m 2 v 2 = (m 1 + m 2 ) v'
(2)(2) + (1)(-4) = (2 + 1) v'
4 – 4 = (3) v'
0 = (3) v'
v' = 0
Tauira pātai 4.
E rua ngā mea, ko A rāua ko B, he 1.5 kg te taumaha o ia mea, e whakatata ana tetahi ki tetahi me te tere o v A = 4 ms -1 me v B = 5 ms -1 . Mēnā he kore-whakapūmau te tukinga, he aha te tere o ngā mea e rua i muri i te tukinga?
Mōhiotia:
Papatipu o te mea A (m A ) = 1.5 kg
Taumaha o te mea B (m B ) = 1.5 kg
Te tere o te mea A i mua i te tukinga (v A ) = 4 m/s (tohu tāpiri, ki te taha matau)
Te tere o te mea B i mua i te tukinga (v B ) = -5 m/s (tohu tango, ki te taha maui)
E hiahiatia ana: Te tere o ngā mea e rua i muri i te tukinga
Rongoā:
Te tiaki i te nekehanga raina:
m A v A + m B v B = (m A + m B ) v'
(1.5)(4) + (1.5)(-5) = (1.5 +1.5) v'
6 – 7.5 = (3) v'
-1.5 = (3) v'
v' = -1.5 / 3
v' = -0.5 m/s
Ko te tohu tango e tohu ana ka neke ngā mea e rua ki te taha maui.
20 ngā pātai ariā me ngā whakautu mō ngā tukinga kore-whakapūmau:
1. Pātai: He aha te whakamāramatanga o te tukinga kore-whakapūmau? Whakautu: I roto i te tukinga kore-whakapūmau, kāore te kaha nekeneke e tiakina, ahakoa e tiakina ana te nekehanga. Ka hurihia ētahi o te kaha nekeneke tuatahi ki ētahi atu momo kaha.
2. Pātai: He aha te rerekētanga o te tukinga kore-whakapūmau tino tika i te tukinga kore-whakapūmau āhua-wāhanga? Whakautu: I roto i te tukinga kore-whakapūmau tino tika, ka piri tahi ngā mea i muri i te tukinga. I roto i te tukinga kore-whakapūmau āhua-wāhanga, ka wehe ngā mea, engari kei te ngaro tonu te pūngao nekeneke.
3. Pātai: He aha ngā mea e toe ana i roto i ngā momo tukinga katoa, tae atu ki ngā mea kore-pūmau? Whakautu: Ka tiakina tonutia te nekehanga i roto i ngā tukinga katoa, ahakoa te pūmau o aua tukinga.
4. Pātai: He aha te take kāore e tiakina ai te pūngao nekeneke i roto i ngā tukinga kore-whakapūmau? Whakautu: Ka hurihia ētahi o te pūngao nekeneke ki ētahi atu momo pūngao, pērā i te pūngao pūmanawa, te wera, te oro rānei.
5. Pātai: Me pēhea te tautuhi i tētahi tukinga kore-pūmau mā te mātakitaki noa i ngā tere i mua atu, i muri mai hoki i te tukinga? Whakautu: Ka nui ake te pūngao nekeneke katoa i mua i te tukinga i te pūngao nekeneke katoa i muri i te tukinga.
6. Pātai: Ka taea e ngā tukinga kore-whakapūmau te puta i te taha kotahi anake? Whakautu: Kāo, ka taea e ngā tukinga kore-whakapūmau te puta i te taha kotahi, e rua, e toru rānei. He rite tonu ngā mātāpono, engari ka uaua haere ngā tataunga whārite.
7. Pātai: I roto i te horopaki o te ahupūngao matūriki, he aha te hua noa o ngā tukinga kore-whakapūmau? Whakautu: I roto i te ahupūngao matūriki, he maha ngā wā ka puta te hurihanga o ngā matūriki e tukinga ana hei matūriki rerekē i ngā tukinga kore-whakapūmau.
8. Pātai: Me pēhea te whakatau i te nui o te pūngao i ngaro i roto i tētahi tukinga kore-whakapūmau? Whakautu: Mā te tatau i te rerekētanga i waenga i te pūngao nekeneke tīmatanga katoa me te pūngao nekeneke whakamutunga katoa.
9. Pātai: He aha ngā tukinga kore-whakapūmau e kore ai e takahi i te ture tiaki pūngao? Whakautu: Kei te tiakina tonutia te pūngao; ka hurihia noa mai i tētahi āhua (nekeneke) ki tētahi atu (pēnei i te wera, i te oro rānei) kaua e noho hei pūngao nekeneke anake.
10. Pātai: He kore-whakapūmau te nuinga o ngā tukinga o te ao tūturu? Whakautu: Ae, he kore-whakapūmau te nuinga o ngā tukinga o te ao tūturu nā te mea he maha ngā wā ka hurihia te pūngao nekeneke ki ētahi atu āhua.
11. Pātai: I roto i tētahi tukinga kore-whakapūmau, ki te piri tahi ngā mea e rua, he aha te mea ka taea te kī mō tō rāua tere whakakotahi? Whakautu: Ka whakatauhia tō rāua tere whakakotahi e te tiakitanga o te nekehanga. Ka neke ngā mea e rua me te tere ōrite i muri i te tukinga.
12. Pātai: He aha te hononga o te tauwehenga whakahoki ki ngā tukinga kore-whakapūmau? Whakautu: Ko te tauwehenga whakahoki, e tohuhia ana ko , e ine ana i te "pekepeke" o te tukinga. Mō ngā tukinga kore-whakapūmau tino tika, �=0 .
13. Pātai: He aha i puta ai he oro i te tukinga kore-whakapūmau? Whakautu: Ka taea e te tukinga te whakaputa wiri i roto i ngā mea e tukinga ana, ka puta ai pea he ngaru oro i roto i te taiao e karapoti ana.
14. Pātai: Ka taea e te pūngao pūmanawa ā-papa te whai wāhi ki ngā tukinga kore-whakapūmau? Whakautu: Āe, ina koa mēnā ka puta he panoni i te teitei, i te tūranga rānei o ngā mea i te tukinga, ka huri i te pūngao nekeneke hei pūngao pūmanawa ā-papa.
15. Pātai: He aha ngā pōro rapa kāore e pāngia e ngā tukinga kore-whakapūmau tino pai, ahakoa he "pekepeke"? Whakautu: Ka pāngia ngā pōro rapa e ngā tukinga pūmau, tata-pūmau rānei, nā te mea ka mau tonu te nuinga o ō rātou pūngao nekeneke, ā, ka pekepeke anō. Kāore e piri tahi, he āhuatanga tēnei o te tukinga kore-whakapūmau tino pai.
16. Pātai: Ka taea e ngā pōro uku ngohengohe e rua te whakaatu i tētahi tukinga kore-whakapūmau tino pai? Whakautu: Āe, nā te mea ina tukinga ngā pōro uku ngohengohe e rua, ka piri tahi rāua, ā, kāore e peke whakamuri, he āhuatanga tēnei o tētahi tukinga kore-whakapūmau tino pai.
17. Pātai: Ka taea te puta he tukinga kore-whakapūmau me te kore he tangi, he wera rānei e puta? Whakautu: He onge, engari ka taea. Ka taea te whakamarara i te pūngao i roto i ētahi atu huarahi ngaro, ka rongoatia rānei hei pūngao pūmanawa ā-roto.
18. Pātai: Ka taea te huri i ngā tukinga kore-whakapūmau? Whakautu: I te nuinga o te wā, kāore e taea te huri i ngā tukinga kore-whakapūmau nā te mea he uaua ki te hoki ki te āhua tīmatanga nā te hurihanga o te pūngao nekeneke ki ētahi atu āhua.
19. Pātai: He aha te hononga o te ātete hau ki ngā tukinga kore-whakapūmau? Whakautu: Ka taea e te ātete hau te whakapūmau ake i te kore-whakapūmau o ngā tukinga mā te whakamarara i ētahi o te pūngao nekeneke hei wera.
20. Pātai: He pānga ngā tukinga kore-whakapūmau ki ngā hoahoa haumaru, pērā i ngā rohe pakaru o ngā motuka? Whakautu: Ae, kua hangaia ngā rohe pakaru i roto i ngā motuka kia pāngia e ngā tukinga kore-whakapūmau, kia mimiti ai te pūngao nekeneke, kia whakaiti ai hoki i ngā kaha e pā ana ki ngā kainoho.
He mea nui ngā tukinga kore-whakapūmau ki te mārama ki ngā ture tiaki taiao, ā, he mea nui hoki i roto i ngā tono mahi maha me ngā hoahoa haumaru.
