Cuf: caanaha, qeexidda

Absolutely wada ee caalamka waa awood sixir ah waa, in jidka qaar ka mid ah iyaga soo jiidata si dhulka (ama halkii ay xuduntii). Meelay u baxsadaan, meel ka qariyo khatarta dhamaystiran sixir: meerayaasha ee nidaamka qoraxda waxaa soo jiitay ma aha oo kaliya in ay qorraxda weyn, laakiin sidoo kale in kasta oo kale, dhammaan waxyaalaha, taagoo, iyo atamka yihiin yar iyo waa la wada jiitay. Isaak Nyuton, loo yaqaan tan iyo carruurta yaryar, naftiisa u huray in daraasadda of this ifafaale, dhigay mid ka mid ah sharciyada weyn - sharciga cuf.

Waa maxay khatarta?

Qeexid iyo formula muddo dheer, iyo dad badan oo lagu yaqaan. Xasuustaan, ciidanka of cuf - waa qiimo gaar ah, mid ka mid ah daliilka dabiiciga ah ee gravitation universal, kuwaas oo, ciidanka oo jirka kasta oo had iyo jeer soo jiidatay inay dhulka.

Ciidamada of cuf waa muujinaysaa by Latin strand warqad F.

Cuf: caanaha

Sida loo xisaabiyo ciidanka of cuf, faray in ay jirka u gaar ah? Waa maxay qiyamka kale u baahan tahay in la ogaado in? formula ee xisaabinta ciidanka of cuf waa wax fudud, waxaa la baray fasalka 7-aad ee dugsiga sare, bilowga ah ee koorso of physics. Taasi ma aha mid fudud si ay u bartaan, laakiin sidoo kale si ay u fahmaan, waa in la qiyaasayo in ciidanka of cuf, had iyo jeer ku simaha on jirka ah waa si toos ah saamiyeed si ay tiro (mass).

cuf Unit la magacaabay ka dib markii aqoonyahan weyn Newton.

Cuf (gravity) waxaa had iyo jeer ku fiiqaya hoos xarunta of dhulka ee muhiimka ah si toos ah, ay sabab u tahay saamaynta ay jirka oo dhan ku dhacaan isku degdegsiimada hoos. Arrin ku gravitation nolol maalmeedka aan meel walba arki iyo waqtiga oo dhan:

• shay sooc ama gaar ah la sii daayay ka soo gacmaha, hubi inaad u dhacaan dhulka (ama dushiisa wax ka hortagtaa dayrta oo lacag la'aan ah);
• bilaabay meel satellite ah ma ma duusho caalamka for masaafo aan cayinayn ee sala kor, oo waxaa lagu wareejiyo kastana falagiisuu dhex;
• Webiyaasha oo dhammu waxay ku shubmaan ka buuraha iyo ma beddeli karo;
• Mararka qaarkood qofka ku dhacaa, oo waxaa ku dhaawacmay,
• dhammaan meelaha ay fadhiisan tiniest saxarka of boodh oo kale,
• hawada waa mid isku urursan u dhow dusha sare ee dhulka,
• culus si ay u fuliyaan bacaha;
• ka daruuro iyo daruuraha hooraya roob, baraf dhicistu, roobdhagaxyaale.

Oo ay la socdaan ereyga "cuf" ah, ereyga "miisaanka jidhka" ah. Haddii jidhka oo waxaa lagu qori karaa on dusha a flat siman, culeyska iyo ciidanka of cuf waa tiro ahaan siman, si labada waxaa inta badan wareersan, taas oo aan sax.

Acceleration of cuf

Fikradda ah "xawaaraha of cuf" (si kale loo dhigo, si joogto ah gravitational) la xidhiidha erayga "cuf" ah. formula waxay muujinaysaa in si loo xisaabiyo ciidanka of cuf, miisaanka waa loo laablaabi by g (n isgaarsiinta dardargelinta ..).

"G" = 9,8 N / kg waa joogto ah. Si kastaba ha ahaatee, cabbirka badan oo sax ah u muujiyaan in ay sabab u tahay qiimaha dardargelinta dhulka wareeg ku qabanaya. . N kala duwan, taas oo ku xidhan loolka ah: Pole North waa = 9.832 N / kg, halka sultry dhulbaraha = 9,78 N / kg. Sidaas, at goobo kala duwan oo jidhka caalamka isagoo mass siman ah, kala duwan oo looga golleeyahay cuf (isku formula weli mg isma badelin). Ujeedooyinka wax ku ool ah, waxaa la go'aamiyay in ay iska indha khaladaad yar yar ee magnitude this, iyo in la isticmaalo qiimaha celcelis ahaan of 9.8 N / kg.

Dheellitirnaanta ee magnitude sida ciidanka gravitational (formula waxaa daliil) oo u ogolaanaya si loo cabbiro miisaanka shayga dynamometer ah (sida an bizmen qoyska caadiga ah). Ogsoonow in qalabka muujinaysaa saamaynta kaliya, sida si loo ogaado miisaanka saxda ah ee aad u baahan tahay in la ogaado qiimaha goboleed "g".

Miyuu ciidanka of cuf in kasta (oo u dhow iyo ka fog) ka fog bartamaha dhulka? Newton hypothesized in ay u dhaqmo on jidhka xitaa meel fog ka badan dhulka ka, laakiin qiimaha hoos u sida square ah bedelka masaafada ka shayga u Earth ee muhiimka ah.

Cuf nidaamka qoraxda

Ma jiraan meerayaasha kale ee khatarta? Qeexitaanno iyo qaaciidooyinka qaraabo u meerayaasha kale ayaa weli aan dhicin. Iyadoo farqiga kaliya ee qiimaha "g" mid ka mid ah:

• Moon = 1,62 N / kg (lix jeer tan kuwa dhulkuna yar);
• Neptune = 13.5 N / kg (jeer ku dhow kala bar ka sarreeya dunida oo dhan);
• Mars = 3.73 N / kg (jeer ka badan laba iyo badh ka yar meeraha);
• Saturn = 10,44 N / kg,
• Mercury = 3.7 N / kg,
• Venus = 8.8 N / kg,
• Uranus = 9.8 N / kg (shiidaa la mid ah sida aan);
• Jupiter = 24 N / kg (jeer ku saabsan laba iyo badh ka sareeya).