Nā nui kino Nā anakahi Nā ana - Nā pilikia a me nā hoʻonā

Nā nui kino Nā anakahi Nā ana - Nā pilikia a me nā hoʻonā

1.

Nā nui kino, nā anakahi, nā ana - nā pilikia a me nā hoʻonā 1

Ma muli o ka papa ma luna, ʻo wai nā nui i loaʻa nā ana a me nā ana maoli.

Lōlā:

1) Ka ikaika

ʻO ke kaulike o ka momentum ʻo p = mv

p = ka ikaika, m = ka nuipa , v = ka wikiwiki

Ana o ka nuipa = M a me ka ana o ka wikiwiki = L/T = LT -1 i hiki ai i ka ana o ka momentum = MLT -1

Anakahi honua o ka momentum = kg m/s = kg ms -1

2) Mana

ʻO ke kaulike o ka ikaika ʻo F = ma

F = ikaika, m = nuipa , a = wikiwiki

ʻO ke ana o ka nuipa = M a me ke ana o ka wikiwiki = L/T 2 = LT -2 no laila ʻo ke ana o ka ikaika he MLT -2

ʻO ke anakahi honua o ka ikaika ʻo kg m/s 2 = kg ms -2

3) Mana

ʻO ke kaulike o ka mana ʻo W = F d

W = hana, F = ikaika, d = neʻe ʻana

ʻO ke ana o ka ikaika = MLT -2 a ʻo ke ana o ka neʻe ʻana he L no laila ʻo ke ana o ka hana he [M][L][T] -2 [L] = [M][L] 2 [T] -2

ʻO ke kaulike o ka mana ʻo P = W/t

P = mana, W = hana, t = manawa

Ana o ka hana = [M][L] 2 [T] -2 a me ka ana o ka manawa = [T] i hiki ai i ka ana o ka mana = [M][L] 2 [T] -2 / [T] = [M][L] 2 [T ] -2 [T] -1 = [M][L] 2 [T] -3

ʻO ke anakahi honua o ka ikaika ʻo kg m 2 /s 3 = kg m 2 s -3

2. Ma muli o ka papa ma lalo nei, ʻo nā nui me nā ana a me nā ana kūpono….

Nā nui kino, nā anakahi, nā ana - nā pilikia a me nā hoʻonā 1

Lōlā:

ʻO ke kaulike o ka momentum ʻo p = mv.

ʻO ke anakahi o ke kaumaha (m) he kilokani (kg) a ʻo ke anakahi o ka wikiwiki (v) he mika i kekona (m/s) i hiki ai i ke anakahi o ka momentum ke kg m/s a i ʻole kg m/s . ʻO Kilogram ke ana o ka nuipa me ke ana o [M], ʻo ka mika kahi anakahi o ka lōʻihi me ke ana o [L], ʻo kekona ke anakahi o ka manawa me ke ana o [T] i hiki ai i kēlā anakahi o ka momentum ke [M][L]/[T] a i ʻole [M][L][T] -1.

ʻO ke kaulike o ka ikaika ʻo F = ma.

ʻO ke anakahi o ke Mass (m) he kilogram (kg) a ʻo ke anakahi o ka wikiwiki (a) he mika no kekona kuea (m/s 2 ) no laila ʻo ke anakahi o ka ikaika he kg m/s 2 a i ʻole kg ms -2 . ʻO ke anakahi o ka nuipa he kilogram me ka ana o [M], ʻo ke anakahi o ka lōʻihi he mika me ka ana o [L], ʻo ke anakahi o ka manawa he kekona me ka ana o [T] no laila ʻo ke anakahi o ka ikaika he [M][L]/[T] 2 a i ʻole [M][L][T] -2.

ʻO ke kaulike o ka mana ʻo P = W/t , ʻo ke kaulike o ka hana ʻo W = F s, ʻo ke kaulike o ka ikaika ʻo F = m a.

ʻO ke anakahi o ke kaumaha he kilokani (kg), ʻo ke anakahi o ka hoʻolalelale ʻana he mika no kekona huinahā (m/s 2 ) i hiki ai i ke anakahi o ka ikaika ke kg m/s 2. ʻO ke anakahi o ka neʻe ʻana he mika (m), ʻo ke anakahi o ka ikaika ke kg m/s 2 i hiki ai i ke anakahi o ka hana ke kg m/s 2 xm = kg m 2 /s 2. ʻO ke anakahi o ka manawa ke kekona (s), ʻo kahi anakahi o ka hana he kg m 2 /s 2 i hiki ai i kahi anakahi o ka mana ke kg m 2 /s 2 : s = kg m 2 /s 3 a i ʻole kg m 2 s -3.

ʻO ke anakahi o ke kaumaha he kilokani me ke ana o [M], ʻo ke anakahi o ka lōʻihi he mika me ke ana o [L], ʻo ke anakahi o ka manawa he kekona me ke ana o [T] i hiki ai i ke anakahi o ka mana ke [M][L] 2 /[T] 3 a i ʻole [M][L] 2 [T] -3.

3. Hoʻoholo ʻia ka mana ma ke ʻano he wikiwiki o ka hana ʻana. A i ʻole ka mana ka lakio o ka hana i ka manawa. E hoʻoholo i ka nui o ka mana.

Lōlā:

ʻO ke kaulike o ka mana:

Nā pilikia nui kino, nā anakahi, nā ana 3

W = hana, F = mana, a = wikiwiki, v = wikiwiki, d = mamao, t = manawa

m = ka nuipaʻa ( ka nuipaʻa = M), d = ka mamao (ka nuipaʻa = L), t = ka manawa (ka nuipaʻa o ka manawa = T).

Ka nui o ka mana:

Nā nui kino, nā anakahi, nā ana - nā pilikia a me nā hoʻonā 4

  1. He aha ka nui kino?
    • pane mai: ʻO ka nui kino kahi waiwai o kahi mea a ʻōnaehana paha e hiki ke ana ʻia a ana ʻia. ʻO nā laʻana e komo pū me ka nuipa, ka lōʻihi, ka manawa, ka mahana, a me ka ikaika.
  2. No ke aha he mea nui nā anakahi i ke ana ʻana o nā nui kino?
    • pane mai: Hāʻawi nā anakahi i kahi ala maʻamau e hōʻike ai i ka nui o kahi nui kino. Hōʻoiaʻiʻo lākou i ka maopopo, ka pololei, a me ke kūlike i nā ana, e hiki ai ke kamaʻilio maopopo a me ka hoʻomaopopo ʻana ma waena o nā kānaka ʻepekema a me nā ʻenekinia ma ka honua holoʻokoʻa.
  3. He aha ka ʻokoʻa ma waena o ka nui kumu (a i ʻole ke kumu) a me ka nui i loaʻa mai?
    • pane mai: ʻO nā nui kumu he mau nui kino kumu i hoʻoholo kūʻokoʻa ʻia a hana i ke kumu no nā ana ʻē aʻe. ʻO nā laʻana e komo pū me ka lōʻihi, ka nuipa, a me ka manawa. Hoʻokumu ʻia nā nui i loaʻa mai ka hui pū ʻana o kēia mau nui kumu, e like me ka ʻāpana (lōʻihi x laulā) a i ʻole ka wikiwiki (mamao/manawa).
  4. He aha nā ana? Pehea lākou e pili ai i nā nui kino?
    • pane mai: Pili nā ana i ke ʻano a me ke ʻano o nā nui kino (e laʻa, [L] no ka lōʻihi, [M] no ka nuipa, [T] no ka manawa). Hōʻike lākou i nā mana i hāpai ʻia ai nā nui kumu e hōʻike i kahi nui kino kikoʻī.
  5. He aha ke ʻano o ke "kumu hoʻohālikelike" o kahi nui kino?
    • pane mai: Hōʻike kahi ʻano hana ana i ka pilina o kahi nui kino ma ke ʻano o kona mau ana kumu. No ka laʻana, ʻo ke ʻano hana ana no ka wikiwiki , e hōʻike ana ua loaʻa ka wikiwiki mai ka lōʻihi ([L]) i puʻunaue ʻia e ka manawa ([T]).
  6. He aha ke koʻikoʻi o ka ʻōnaehana SI (International System of Units) i ka ʻepekema a me ke ʻenekinia o kēia au?
    • pane mai: Hāʻawi ka ʻōnaehana SI i kahi hoʻonohonoho o nā anakahi maʻamau i ʻae ʻia ma ka honua holoʻokoʻa no ke ana ʻana i nā nui kino. Hōʻoia kēia i ka like ʻana, hōʻemi i ka huikau, a hiki ke hana pū ma waena o nā kānaka ʻepekema a me nā ʻenekinia ma ka honua holoʻokoʻa.
  7. He aha ka ʻokoʻa ma waena o ka nui scalar a me ka nui vector?
    • pane mai: ʻO ka nui scalar wale nō ka nui (e laʻa, ka nuipa, ka mahana), ʻoiai ʻo ka nui vector he nui a me ke kuhikuhi (e laʻa, ka wikiwiki, ka ikaika).
  8. No ke aha e hiki ʻole ai iā mākou ke hoʻohana i nā anakahi kūpono ʻole e ana i nā nui kino?
    • pane mai: ʻO ka hoʻohana ʻana i nā anakahi kūʻokoʻa e alakaʻi ai i ka huikau, ka nele o ke kūlike, a me ka launa hewa ʻana i nā ana ʻepekema a me nā helu ʻana. Hōʻoia nā anakahi maʻamau e maopopo a hoʻohālikelike ʻia nā ana ma nā wahi āpau.
  9. Pehea e hiki ai i ka nānā ʻana o nā dimensional ke lilo i mea pono i ka physics?
    • pane mai: Kōkua ka loiloi ana i ka hōʻoia ʻana i ka pololei o nā kaulike kino ma ka nānā ʻana i ke kūlike o nā ana ma nā ʻaoʻao ʻelua o ka kaulike. Hiki ke hoʻohana ʻia hoʻi e loaʻa nā pilina ma waena o nā nui kino like ʻole.
  10. No ke aha i manaʻo ʻia ai kekahi mau nui, e like me ka refractive index a i ʻole ke coefficient of friction, he dimensionless?
  • pane mai: ʻO nā nui ʻaʻohe ana he mau lakio o nā nui like, a no laila e hoʻopau ʻia ko lākou mau ana. No ka laʻana, ʻo ka refractive index ka lakio o ka wikiwiki o ka mālamalama i loko o kahi hakahaka i kona wikiwiki i loko o kahi waena. No ka mea he mau wikiwiki nā mea ʻelua, e hoʻopau ʻia ko lākou mau ana, e hana ana i ka refractive index ʻaʻohe ana.
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