Nā nui a me nā anakahi o ka physics - nā pilikia a me nā hoʻonā

1.

Ua hōʻike ʻia ka International Unit pololei e ka haumāna…

A. R a me S

B. P a me R

C. P a me Q

D. Q a me S

pāʻoihana

Haumāna P:

ʻO ke anakahi honua o ka lōʻihi he mika (m), ʻaʻole kenimika (cm)

ʻO ka lula ke ana o ka lōʻihi.

Nīnau a ka Haumāna:

ʻO Ampere (A) ke anakahi honua o ke au uila

ʻO ka mea ana o ke au uila he mika Ampere.

Haumāna R:

ʻO Kelvin (K) ke anakahi honua o ka mahana

ʻO ke ana o ka mahana he thermometer, ʻaʻole he hydrometer.

ʻO ka hydrometer kahi mea hana i hoʻohana ʻia no ke ana ʻana i ka nui o nā wai e pili ana i ka manaʻo o ka buoyancy.

Haumāna S:

ʻO ke anakahi honua (SI) o ke kaumaha he kilokani (Kg)

He unahi kaulike ka mea ana o ka nuipa

ʻO ka ʻikepili pololei a ma muli o ke anakahi SI (International Unit) i hōʻike ʻia e ka haumāna Q a me S.

ʻO D ka pane pololei.

2. E huli i ka pilina kūpono ma waena o ka nui a me nā anakahi.

pāʻoihana

Ikaika = Nuipa x Hoʻolalelale

ʻO ke anakahi honua o ka nuipa he kilokani (kg)

ʻO ke anakahi honua o ka wikiwiki he mika i kekona kuea (m/ ^s² )

Anakahi o ka ikaika = kg m/s ² = kg ms ^-2

Kaomi = ikaika / wahi

ʻO ke anakahi honua o ka ikaika he kg m/s ²

ʻO ka ʻāpana honua o ka wahi he ^m2

ʻO ke anakahi o ke kaomi = kg /ms ² = kg m ^-1 s ^-2

Ikehu = Hana

Hana = ikaika x neʻe ʻana

ʻO ke anakahi honua o ka ikaika he kilokani mika i kekona kuea (kg m/s ² )

ʻO ka anakahi honua o ka neʻe ʻana he mika (m)

ʻO ke anakahi ikehu = ke anakahi hana= kg m ² /s ² = kg m ² s ^-2

Mana = Hana / manawa

ʻO ke anakahi hana honua he kilokani mika huinahā i kekona huinahā (kg ^m² / ^s² )

ʻO ke anakahi manawa honua he kekona (s)

ʻO ke anakahi o ka mana he kg m ² /s ³ = kg m ² s ^-3

ʻO D ka pane pololei.

3.

Ma muli o ka papa ma luna, e ʻimi iā A, B, C, D, a me E.

A. Ka nui, kilokani, mahana, ʻāpana, mika

B. Ka lōʻihi, kilokani, manawa, ʻāpana, Newton

C. Ka lōʻihi, kilokani, leo, ʻāpana, Joule

D. Lōʻihi, Newton, manawa, leo, mika

Lōlā:

A = Ka lōʻihi

B = Kilokalama

C = Manawa

D = ʻĀpana

E = Kg m/s ² = Newton

ʻO ka pane pololei ʻo B.

4. E hoʻoholo i ka pālua o nā nui kumu a me nā anakahi ma ka ʻōnaehana honua.

A. Loa-mika, nuipa - kg a me ka hoʻouku uila—coulomb

B. Manawa - kekona, mahana - Kelvin, ikaika kukui - Candela

C. Kekona - manawa, mika - lōʻihi, kg - nuipa

D. nuipa - kg, manawa - kekona, Kelvin - mahana

pāʻoihana

Nā nui kumu a me nā anakahi honua (SI):

Loa - mika (m)

Mass - kilokani (kg)

Manawa - kekona (mau)

Mahana - Kelvin (K)

Ka ikaika o ka mālamalama—Candela

ʻO ka pane pololei ʻo B.

5.

ʻO nā nui a me nā anakahi pololei e pili ana i ka International System of Units (SI) i hōʻike ʻia e ka helu…

A. 1 a me 3

B. 1 a me 4

C. 1, 2, a me 3

D. 1, 3, a me 4

pāʻoihana

Nā nui a me nā anakahi o ka ʻōnaehana honua (SI):

(1) Mahana - Kelvin

(2) Nuipaʻa – Kilokalama

(3) Manawa – Kekona

(4) Loa - Mika

ʻO D ka pane pololei.