Nā nui a me nā anakahi i loaʻa - nā pilikia a me nā hoʻonā
1.
Ma muli o ka papa i luna, e hoʻoholo i nā nui i loaʻa a me kā lākou mau anakahi honua.
pāʻoihana
nuʻa
ʻO ke kaulike o ka nuipaʻa ʻo ρ = m / V
m = ka nuipa (ʻo kona anakahi honua he kilokani, i hoʻopōkole ʻia kg)
ʻO V = ka nui (ʻo kona anakahi honua he mika cubic, i hoʻopōkole ʻia m 3 )
ʻO ρ = ka nui (ʻo kona anakahi honua he kilokani no ka mika cubic, i hoʻopōkole ʻia kg/ m3 )
Kaha
ʻO ke kaulike o ka ikaika ʻo F = ma
m = ka nuipa (ʻo kona anakahi honua he kilokani, i hoʻopōkole ʻia kg)
a = ka wikiwiki (ʻo kona anakahi honua he mika no kekona kuea, i hoʻopōkole ʻia m/s 2 )
ʻO F = ka ikaika (ʻo kona anakahi honua he kilokani mika i kekona kuea, i hoʻopōkole ʻia kg m/s 2 )
māmā holo
ʻO ke kaulike o ka wikiwiki ʻo v = s/t
s = ka mamao (ʻo kona anakahi honua he mika, i hoʻopōkole ʻia ʻo m)
t = manawa (ʻo kona anakahi honua he kekona, i hoʻopōkole ʻia ʻo s)
ʻo v = ka wikiwiki (ʻo kona anakahi honua he mika i kekona, i hoʻopōkole ʻia m/s)
Area
ʻO ke kaulike o ka ʻāpana ʻo A = lxl
l = ka lōʻihi (ʻo kona anakahi honua he mika, i hoʻopōkole ʻia ʻo m)
ʻO A = ka ʻāpana (ʻo kona anakahi honua he mika huinahā, i hoʻopōkole ʻia m 2 )
mahana
ʻO ka mahana ka nui kumu. ʻO T ka hōʻailona o ka mahana a ʻo Kelvin kona anakahi honua, i hoʻopōkole ʻia ʻo K.
Ua hōʻike ʻia nā nui i loaʻa a me kā lākou mau ʻāpana honua e nā helu (1), (2), a me (3).
2.
Hōʻike ʻia nā nui i loaʻa a me kāna mau ʻāpana honua e ka helu……
pāʻoihana
(1) Ka nui: ka nui i loaʻa
(2) Au uila : ka nui kumu
(3) Ka ikaika o ke kukui: ka nui kumu
(4) Uila uila : ka nui i loaʻa
(5) Kaomi : ka nui i loaʻa
Ua hōʻike ʻia nā nui i loaʻa a me kā lākou mau ʻāpana honua e nā helu (1), (4), a me (5)
1. Nīnau: He aha ka mea e hoʻokaʻawale ai i kahi nui i loaʻa mai kahi nui kumu a i ʻole ka nui kumu?
Pane: Kūkulu ʻia kahi nui i loaʻa me ka hoʻohana ʻana i nā hui pū ʻana o nā nui kumu ma o ka hoʻonui ʻana a i ʻole ka puʻunaue ʻana, ʻoiai he nui kumu ka nui kumu a ʻaʻole hiki ke loaʻa mai nā nui ʻē aʻe.
2. Nīnau: He aha ka nui i loaʻa i ana ʻia ma Joules (J)?
Pane: Ke ana ʻo Joules i ka ikehu, ka hana, a i ʻole ka nui o ka wela.
3. Nīnau: Pehea e hōʻike ʻia ai ke anakahi i loaʻa no ka wikiwiki ma ke ʻano o nā anakahi kumu?
Pane: ʻO ka wikiwiki, i ana ʻia ma nā mika ma kekona (m/s), ua loaʻa mai ka mamao (mika) i puʻunaue ʻia e ka manawa (kekona).
4. Nīnau: ʻO wai ka anakahi i loaʻa e hōʻike ana i ka nui?
Pane: ʻO ke anakahi i loaʻa no ka leo ka mika cubic (m³).
5. Nīnau: He aha ke anakahi o ke alapine (frequency), a pehea e pili ai i ka manawa?
Pane: ʻO ke anakahi no ke alapine (frequency) ʻo Hertz (Hz). Hōʻike ia i nā pōʻaiapuni i kekona a ʻo ia ke kūkaʻi o ka manawa.
6. Nīnau: Ma ke ana hea mākou e ana ai i ka capacitance uila?
Pane: Ua ana ʻia ka capacitance uila ma Farads (F).
7. Nīnau: He aha ka nui i loaʻa mai i hōʻike ʻia e ke anakahi Pascal (Pa)?
Pane: Hōʻike ka Pascal (Pa) i ke kaomi, ʻo ia hoʻi ka ikaika no kēlā me kēia anakahi wahi.
8. Nīnau: Pehea e loaʻa ai ke anakahi no ka hoʻolalelale ʻana, mika no kekona kuea (m/s²)?
Pane: ʻO ka hoʻolalelale ka wikiwiki o ka loli o ka wikiwiki. No laila, ua loaʻa mai ia mai ka puʻunaue ʻana i ka wikiwiki (m/s) me ka manawa (s), e hopena ana i m/s².
9. Nīnau: He aha ka nui i loaʻa mai ka wehewehe ʻana o ke anakahi Kelvin no Watt (K/W)?
Pane: Hōʻike ʻo K/W i ke kūpaʻa wela.
10. Nīnau: ʻO wai ke anakahi i loaʻa mai i hoʻohana ʻia no ke ana ʻana i ka flux magnetic?
Pane: Ua ana ʻia ke kahe magnetic ma Webers (Wb).
11. Nīnau: Pehea e pili ai ke anakahi i loaʻa ʻo Ohm (Ω) i ke au uila a me ka ʻokoʻa hiki?
Pane: ʻO Ohm ke anakahi no ke kū'ē uila. Hōʻike ia i ke kū'ē i loko o kahi kaapuni kahi e hana ai kahi ʻokoʻa hiki o hoʻokahi Volt i kahi au o hoʻokahi Ampere.
12. Nīnau: Ma ke ʻano o nā anakahi kumu, pehea i loaʻa ai ka Watt (W)?
Pane: Hōʻike ka Watt i ka mana, ʻo ia ka ikehu no kēlā me kēia manawa. Loaʻa ia ma ke ʻano he Joules (ikehu) i puʻunaue ʻia e kekona (manawa), e hopena ana i kg x m²/s³.
13. Nīnau: He aha ke anakahi i loaʻa no ka inductance?
Pane: ʻO ke anakahi i loaʻa no ka inductance ʻo Henry (H).
14. Nīnau: Pehea e pili ai ke anakahi i loaʻa ʻo Newton (N) i ka nuipa a me ka wikiwiki?
Pane: Hōʻike ʻo Newton i ka ikaika. Loaʻa ia mai ka nuipa (kilokala) i hoʻonui ʻia e ka wikiwiki (m/s²).
15. Nīnau: He aha ke ana o ke anakahi i loaʻa ʻo Candela (cd)?
Pane: Ana ʻo Candela i ka ikaika o ka mālamalama ma kahi kuhikuhi i hāʻawi ʻia.
16. Nīnau: Pehea i loaʻa ai ke anakahi no ka momentum?
Pane: Loaʻa ka momentum ma ka hoʻonui ʻana i ka nuipa (kg) me ka wikiwiki (m/s), e hopena ana i kg xm/s.
17. Nīnau: ʻO wai ke anakahi i loaʻa āu e hoʻohana ai e ana i ka nui o ka mea ma nā mole no kēlā me kēia leo?
Pane: ʻO ka nui o kahi mea i loko o ka hopena e ana ʻia ma nā mole no ka mika cubic (mol/m³).
18. Nīnau: He aha ke anakahi i loaʻa mai i hoʻohana ʻia no ke ana ʻana i ka ʻokoʻa o ka hiki ke uila?
Pane: Ana ʻia ka ʻokoʻa hiki ke uila ma Volts (V).
19. Nīnau: He aha ka nui i hōʻike ʻia e ke anakahi i loaʻa ʻo Becquerel (Bq)?
Pane: Hōʻike ka Becquerel i ka radioactivity. ʻO ke kikoʻī, he ana ia o ka wikiwiki o ka palaho o nā mea radioactive, e hōʻike ana i hoʻokahi palaho i kekona.
20. Nīnau: Pehea ka ʻokoʻa o ke anakahi i loaʻa no ka torque, ʻo ia hoʻi ka mika Newton (N·m), mai ke anakahi no ka ikehu, ʻo Joule?
Pane: ʻOiai he like nā anakahi kumu like ʻelua (kg x m²/s²), hōʻike lākou i nā manaʻo kino like ʻole. Hōʻike ʻo N·m i ka torque, ʻo ia ka ikaika rotational, ʻoiai ʻo Joule e hōʻike ana i ka ikehu a i ʻole ka hana i hana ʻia.
