Ngā Whatunga Gurumuda
Ngā ara iahiko hiko me ngā ātete i roto i te ātete whakarara me te ātete ā-roto – ngā raruraru me ngā otinga
1. I runga i te ahua i raro nei, mēnā ko te pūtake o te kaha hiko (emf) he 24 Volts, tautuhia te iahiko I.
Mōhiotia:
Pūtake o te emf = 24 Volt
Ātete ā-roto (r) = 2 Ōhms
Ngā ātete 40 Ohm, 20 Ohm, me te 20 Ohm.
Te tatau i te whakamahinga hiko e ngā taputapu hiko - ngā raruraru me ngā otinga
1. I roto i tētahi whare, e 5 ngā rama e 25 Watt e whakamahia ana mō ngā hāora 14 i te rā, he pouaka whakamātao 200 Watt e whakamahia ana mō ngā hāora 24 i te rā, me tētahi papu wai 125 Watt e whakamahia ana mō ngā hāora 8 i te rā. E hia te nui o te pūngao hiko e whakamahia ana mō te marama (30 rā)?
Mōhiotia:
Te mana o te rama = 5(25) = 125 Watts me te wā whakamahi = 14 hāora x 30 = 420 hāora
Te mana o te pouaka whakamātao = 200 Watts me te wā whakamahi = 24 hāora x 30 = 720 hāora
Te mana o te papu wai = 125 Watts me te wā whakamahi = 8 hāora x 30 = 240 hāora
Ngā momo utu hiko - ngā raruraru me ngā otinga
1. I runga i te āhua o ngā utu hiko i raro nei.
He utu kino ngā taonga A me D (-), ka kukume te taonga A i te taonga B, ā, ka panaia e ia te taonga C, ka panaia e ia a E te taonga D. Tāutuhia te momo utu hiko o ngā taonga B, C, me E.
A. Pai, Pai, Kino
B. Kino, Kino, Pai
C. Pai, Kino, Kino
D. Pai, Kino, Pai
6 Mīhini Māmā (Rākau Papa Hinga) – Ngā Raru me ngā Otinga
1.
Ko tēhea papa whakarara he rite te painga ā-mīhini?
Te tirohanga tata me te tirohanga tawhiti – ngā raruraru me ngā otinga
1. Ka taea e te tamaiti kāore i te tino matatau te whakarongo te pānui pukapuka i te tawhiti tata o te 1 mita. Hei pānui i te tawhiti pānui noa o te 25 cm, tātaihia te kaha o te karāhe arotahi me whakamahi e te tamaiti.
Rongoā:
E pāngia ana te tamaiti e te tirohanga tawhiti , arā, ko te pūwāhi tata o ōna kanohi he 1 mita, 100 cm rānei. Ko te pūwāhi tata o te kanohi noa he 25 cm. Ka taea te whakataurite i te kanohi mā te whakamahi i te karāhe arotahi kōpikopiko.
Pūngao nekeneke – ngā raruraru me ngā otinga
1. He ōrite te taumaha o ngā waka e rua , engari he rerekē te kaha nekeneke o te waka tuatahi. Ko te kaha nekeneke o te waka tuatahi he 9 ngā wā o te kaha nekeneke o te waka tuarua. Ko te whakataurite i te tere o te waka tuatahi ki te waka tuarua ko…..
Mōhiotia:
Taumaha o te motuka A (m A ) = m
Taumaha o te motuka B (m B ) = m
Ko te pūngao nekeneke o te motuka B (K E B ) = K E
Ko te pūngao nekeneke o te motuka A (K E A ) = 9 K E
Te tere o ngā ngaru whakawhiti - ngā raruraru me ngā otinga
1.
Mena e 2 hēkona te roa o te wā e hiahiatia ana hei haere mai i A ki B, tautuhia te tere o te ngaru whakawhiti.
Mōhiotia:
Tawhiti AB = 6 mita ia hekona
Wā wā AB = 2 hēkona
E hiahiatia ana: Te tere o ngā ngaru whakawhiti
Te mahi irahiko – ngā raruraru me ngā otinga
1. E ai ki te pikitia i raro nei, ko te ngohe irahiko i muri i te pirau mō ngā haora 13.86 ko …
Mōhiotia:
Te haurua-ora (T 1/2 ) = 6.93 hāora
Te wā-whakawhiti (t) = 13.86 hāora
E hiahiatia ana: te mahi irahiko
Te tīwiri maikoromita – ngā raruraru me ngā otinga
1. Ko te ine i te diameter o te waea me te maikiromita he 2.48 mm. Ko te ahua e rite ana ki te hua ine ko…
Rongoā:
