Tātai Tere: Ariā, Whakamahinga, me ngā Tauira
He ariā taketake te tere i roto i te ahupūngao e whakamahia whānuitia ana i roto i ngā āhuatanga o ia rā me ngā āhuatanga pūtaiao. Ahakoa he maha ngā wā ka rongo tātou i te whakamahinga o ngā kupu "tere" me te "tere" i waenga i a rātou, he rerekētanga nui kei a rāua. Ka whakamāramahia e tēnei tuhinga he aha te tere, te tauira mō te tere, me te whakarato i ngā tauira o tōna whakamahinga i roto i te oranga o ia rā me ngā horopaki pūtaiao.
He aha te Tere?
Ko te tere he ine i te tere o te neke o tētahi mea mai i tētahi pūwāhi ki tētahi atu. Ka ine noa te tere i te rahi o te tere me te kore e whai whakaaro ki te ahunga o te nekehanga. Nō reira, he rahinga tauine te tere, arā, he rahi anake tōna, kāore he ahunga.
I tētahi atu taha, ko te tere he rahinga whārite e whai whakaaro ana ki te rahi me te ahunga. Hei tauira, ki te mea tetahi kei te neke te motuka i te 60 km/h ki te raki, koinei te tere. Ki te mea noa tetahi kei te neke te motuka i te 60 km/h, me te kore e tohu i te ahunga, koinei te tere.
Tātai Tere
He tino māmā te tātai tere taketake. Ka tatauhia te tere mā te wehewehe i te tawhiti i haerea mā te wā e pau ana ki te haere i taua tawhiti. Mā te pāngarau, ka whakaatuhia te tātai tere penei:
\[ \text{Tere} (v) = \frac{\text{Tawhiti} (d)}{\text{Wā} (t)} \]
Kei hea:
– Ko te tere te \( v \),
– ko te tawhiti i haerea ko \( d \),
– Ko te \( t \) te wā e hiahiatia ana hei hipoki i taua tawhiti.
Tauira o te Whakamahi i te Tātai Tere
Hei mārama ake ki te whakamahinga o te tātai tere, me titiro tātou ki ētahi tauira mahi.
Tauira 1: Te Tātai i te Tere o te Waka
Me kī, e 150 kiromita te roa o te haerenga o tētahi motuka i roto i ngā hāora e 3. Hei tatau i te tere o te motuka, ka taea e tātou te whakamahi i te tātai i runga ake nei:
\[ v = \frac{d}{t} = \frac{150 \, \text{km}}{3 \, \text{haora}} = 50 \, \text{km/haora} \]
Nō reira, ko te tere o te motuka he 50 kiromita ia hāora.
Tauira 2: Te Tere o te Hīkoi
Mena ka hipa te tangata hikoi i te tawhiti o te 2 kiromita i roto i te 30 meneti, he aha tōna tere i roto i ngā kiromita ia hāora?
Tuatahi, ka hurihia e mātou te wā mai i ngā meneti ki ngā hāora:
\[ 30 \, \text{meneti} = \frac{30}{60} \, \text{hāora} = 0.5 \, \text{hāora} \]
Kātahi ka tāpirihia ēnei uara ki te tātai tere:
\[ v = \frac{d}{t} = \frac{2 \, \text{km}}{0.5 \, \text{haora}} = 4 \, \text{km/haora} \]
Nō reira, ko te tere o te kaihaerere he 4 kiromita ia hāora.
Tauira 3: Tere o te Rererangi
E 1200 kiromita te tawhiti e haerea ana e tētahi waka rererangi i roto i ngā hāora e 2. He aha te tere o te waka rererangi?
\[ v = \frac{d}{t} = \frac{1200 \, \text{km}}{2 \, \text{haora}} = 600 \, \text{km/haora} \]
Nō reira, ko te tere o te waka rererangi he 600 kiromita ia hāora.
Tere i roto i te Horopaki Pūtaiao
Haunga ōna whakamahinga o ia rā, he mea nui anō hoki te ariā o te tere i roto i ngā momo mara pūtaiao, pērā i te ahupūngao, te whetū, me te hangarau. Kei raro nei ētahi tauira o te whakamahinga o te tere i roto i ngā horopaki pūtaiao.
Tere o te Mārama
Ko te tere o te mārama tētahi o ngā pūmau tino taketake o te ahupūngao. Ka haere te mārama i roto i te korehau i te tata ki te 299,792,458 mita ia hekona (m/s). E whakamahia ana tēnei tere i roto i te maha o ngā whārite ahupūngao, tae atu ki te ariā whanaungatanga a Einstein.
Tere o te Oro
Ko te tere o te oro i te rangi i te 20°C e tata ana ki te 343 mita ia hekona. Ka rerekē pea te tere o te oro i runga i te reo e haere ana te oro (hei tauira, te wai, te maitai, te hau) me ngā āhuatanga pēnei i te pāmahana me te pēhanga.
Tere i roto i te Mīhini
I roto i te hangarau, ka whakamahia te tere hei whakaahua i te tere o te neke o tētahi mea i runga i tētahi ara kua whakaritea. He mea nui tēnei mō te tatau i ngā hihiri o ngā mea, te pūngao nekeneke, me te nekehanga.
Te Tere o te Āmiomio
I roto i te ao whetū, ko te tere porowhita te tere e hiahiatia ana kia noho tonu ai tētahi mea i te porowhita huri noa i tētahi atu mea, pērā i te aorangi e porowhita ana i te rā, i te marama rānei e porowhita ana i tētahi aorangi.
Ngā Take e Pā Ana ki te Tere
He maha ngā āhuatanga ka pā ki te tere o tētahi mea, tae atu ki:
1. Te Kaha Ārahi: Ka taea e te kaha e pā ana ki tētahi mea te tere ake, te whakaroa rānei i tōna nekehanga.
2. Ngā Ārai: Ka taea e ngā ārai pēnei i te waku, te ātete rānei o te hau te whakaiti i te tere o tētahi mea.
3. Waenga: Ka pā anō hoki te momo waenga e neke ai tētahi mea ki tōna tere. Hei tauira, he tere ake te neke o ngā mea i te hau i te wai.
4. Papatipu: He pānga anō tō te papatipu o tētahi mea ki te whakatau i tōna tere. Ko ngā mea he nui ake te papatipu me nui ake te kaha hei whakatutuki i tētahi tere kua whakaritea.
Whakamutunga
He ariā taketake engari he mea nui te tere i roto i te ahupūngao me te oranga o ia rā. Mā te mārama ki te tauira mō te tere me te whakamahi, ka taea e tātou te mārama ake ki te nekehanga o ngā mea e karapoti ana i a tātou. Ahakoa te tatau i te tere o te motuka i runga i te huarahi, te whakatau i te tere hikoi, te mārama rānei ki ngā āhuatanga taiao pēnei i te tere o te mārama me te tangi, ka whakaratohia e te ariā o te tere he turanga pakari mō te mārama ki te ao ahupūngao.
Mā te mārama ki ngā āhuatanga e pā ana ki te tere, ka taea hoki e tātou te arotau i ngā āhuatanga rerekē kia tutuki ai ngā tere e hiahiatia ana, i ngā horopaki o ia rā me ngā horopaki pūtaiao. He whai hua tēnei mātauranga ehara i te mea i roto i ngā mara mātauranga anake engari i roto hoki i ngā tono mahi e tūtakihia ana e tātou i ia rā.
