Simba regiravhiti - matambudziko nemhinduro

Simba regiravhiti - matambudziko nemhinduro

1. Chii chinonzi ratio yesimba regiravhiti rechinhu A nechinhu B?

Zvinozivikanwa:

Huremu hwechinhu A (m _A ) = 1

Huremu hwechinhu B (m _B ) = 2

Kureba kwechinhu A kubva pasi pano (r _A ) = 1

Kureba kwechinhu B kubva pasi pano (r _B ) = 2

Zvinodiwa: Chiyero chesimba regiravhiti rechinhu A nechinhu B

Solution:

Kuenzanisa kwesimba regiravhiti rePasi:

g = hukuru hwemunda wegiravhiti, G = simba regiravhiti risingaperi, m _B = huremu hwePasi, r _B = nharaunda yePasi

Chiyero chemunda wegiravhiti:

g _A : g _B

G: G/2

1: 1/2

2: 1

2. Kana nzvimbo yechinhu A iri 0.5R pamusoro penyika, nepo nzvimbo yechinhu B iri 2R pamusoro penyika, saka chiyero chesimba regiravhiti chakaonekwa nechinhu A uye chinhu B. R ndiyo radius yeNyika.

Zvinozivikanwa:

Kureba kwechinhu A kubva pakati peNyika = 0.5R + R = 1.5R = 1.5

Kureba kwechinhu B kubva pakati peNyika = 2R + R = 3R = 3

Zvinodiwa: Chiyero chesimba regiravhiti

Solution:

Nzvimbo inokwevera zvinhu pasi inowanikwa nechinhu A (g _A ):

Nzvimbo inokwevera zvinhu pasi inowanikwa nechinhu B (g _B ):

Chiyero chesimba regiravhiti rinoonekwa nechinhu A nechinhu B:

3. Munda wegiravhiti uri pamusoro peNyika ndi g, saka chii chinonzi munda wegiravhiti uri pakakwirira kwe1.5R pamusoro peNyika. R = nharaunda yeNyika.

mhinduro

Simba regiravhiti (F) rinoenderana zvakananga nesimba regiravhiti (g). Simba regiravhiti parinokura, simba regiravhiti parinokurawo.

Simba rinokwevera pasi (F) rinoenderana zvakananga ne1/r ² , apo r = daro rechinhu kubva pakati penyika. Simba rinokwevera pasi rinoenderana zvakananga ne1/r ² zvekuti munda unokwevera pasi (g) unoenderanawo ne1/r ².

Kana mutyairi wendege ari pamusoro peNyika, iyo iri R (R = radius yenyika) kubva pakati penyika, simba regiravhiti riri g. Izvi zvinogona kuratidzwa kuburikidza nekuverenga kunotevera:

Munda wegiravhiti (g) unoenderana ne1 / R2 ^. Kana R = 1 saka 1 / R2 ⁼ 1/1 ² = 1/1 = 1. Kana daro remuchadenga kubva pakati penyika = 1 saka muchadenga anosangana nemunda wegiravhiti we = (g) (1) = g.

Kureba kwemuchadenga kubva pakati penyika i1.5R = 1.5 (1) = 1.5 ipapo muchadenga anodarika munda wegiravhiti we: 1 / R ² = 1 / 1.5 ² = 1 / 2.25. Saka kana muchadenga ari kure nepakati penyika = 1.5 saka muchadenga ane munda wegiravhiti we = (g) (1 / 2.25) = g / 2.25

4. Chii chiri chiyero chesimba regiravhiti repasi pazvinhu zviviri, chimwe chiri pamusoro penyika uye chimwe chiri pakukwirira kwehafu R kubva pamusoro penyika (R = radius yenyika)?

Zvinozivikanwa:

Kureba kwechinhu A kubva pakati penyika (r _A ) = R = 1

Kureba kwechinhu B kubva pakati penyika (r B ₎ = 0.5R + R = 1.5R = 1.5

Zvinodiwa: Chiyero chesimba regiravhiti repasi

Solution:

Simba regiravhiti repasi rinoonekwa nechinhu A (g _A ):

Simba regiravhiti repasi rinoonekwa nechinhu A (g _B ):

Huwandu hwesimba regiravhiti repasi rinoonekwa nechinhu A nechinhu B:

1. Chii chinonzi simba regiravhiti?
   • Pindura: Munda wegiravhiti unomiririra nzvimbo yakatenderedza simbi uko chero imwe simbi inosangana nesimba nekuda kwesimba rinokwevera pasi. Inzira yekutsanangura kuti zvinhu zvinopesvedzerana sei kuburikidza nekukwevera pasi pasina kusangana zvakananga.
2. Simba resimba rinokwevera zvinhu pasi rinochinja sei paunofambira mberi kubva pane rinorigadzira?
   • Pindura: Simba remunda wegiravhiti rinoderera nechikamu chedaro kubva pahuremu hwenzvimbo. Zvikuru, rinotevedzera mutemo we inverse-square: kana ukawedzera daro kaviri, simba remunda rinova chikamu chimwe muzvina chesimba rayo rekutanga.
3. Simba regiravhiti rine hukama sei nesimba regiravhiti?
   • Pindura: Simba regiravhiti panzvimbo imwe chete muchadenga, rinomiririrwa ne $g$, inotsanangurwa sesimba rinokwevera pasi (F) payuniti yega yega (m) rinoonekwa nehukuru hudiki hwebvunzo hwakaiswa panzvimbo iyoyo. Pamasvomhu, $g=F/m$.
4. Simba regiravhiti rePasi rinosiyana sei zvichienderana nekureba?
   • Pindura: Sezvo kukwirira kuchiwedzera (sezvaunofamba kure nepakati peNyika), simba regiravhiti rinoderera. Ndosaka vatyairi vendege vari mudenga vachiona microgravity, kunyangwe vachiri pasi pesimba regiravhiti reNyika.
5. Zvinorevei kutaura kuti minda yesimba rinokwevera zvinhu pasi "minda inochengetedza zvinhu"?
   • Pindura: Munda wekuchengetedza zvinoreva kuti basa rinoitwa pachinhu chinofamba pakati penzvimbo mbiri mumunda harina chekuita nenzira yakatorwa. Kune minda yegiravhiti, izvi zvinoreva kuti basa rinoitwa nesimba regiravhiti pachinhu chinofamba pakati penzvimbo mbiri rakafanana zvisinei nekuti rinotora nzira ipi.
6. Minda yesimba rinokwevera zvinhu ine masimbi akawanda inosanganiswa sei?
   • Pindura: Minda inokwevera kubva muhuwandu hwakawanda inomira kana kusanganiswa nevector. Chero panguva ipi zvayo, munda unokwevera unobuda ndiwo huwandu hwevector yeminda inokwevera inogadzirwa nehuremu hwega hwega.
7. Huremu hwechinhu hunokanganisa sei simba regiravhiti rachinogadzira?
   • Pindura: Simba regiravhiti rinogadzirwa nechinhu rinoenderana nehuremu hwacho. Chinhu chakakura zvikuru chinoburitsa simba regiravhiti rakasimba.
8. Simba remumunda wegiravhiti rinoyerwa sei?
   • Pindura: Simba remumunda wegiravhiti rinoyerwa zvichienderana nesimba pahuremu hweyuniti. Muhurongwa hweSI unit, rinoyerwa mu $N/kg$ (MaNewton pakirogiramu).
9. Minda yegiravhiti inogona kushanda here? Kana zvakadaro, sei?
   • Pindura: Ehe, minda yegiravhiti inogona kushanda. Kana chinhu chichifamba chakanangana nemunda wegiravhiti (seapuro rinowira pasi), munda wegiravhiti unoshanda pachinhu chacho, uye simba rekukwevera rechinhu chacho rinoderera.
10. Chii chiri hukama huripo pakati pesimba regiravhiti nesimba regiravhiti?

• Pindura: Simba regiravhiti (gravitational potential energy) isimba rine chinhu nekuda kwenzvimbo yacho mumunda wegiravhiti. Kuchinja kwesimba regiravhiti rechinhu kune chekuita nebasa rinoitwa nesimba regiravhiti sezvo chinhu chichifamba. Simba regiravhiti rinogona kubva pa gradient (kana kuti spatial derivative) yesimba regiravhiti.