Ukucindezela kwezinto eziqinile - izinkinga nezixazululo

Ukucindezela kwezinto eziqinile - izinkinga nezixazululo

1. Imisa kanye nomthamo wamabhulokhi amane ngezansi kuyafana. Okuyiyona encane ingcindezi kwenziwa yibhulokhi phansi?

Isixazululo

P = F / A

Ngokusekelwe kule fomula kuphethwa ngokuthi ingcindezi (P) ilingana ngqo namandla (F) futhi ilingana ngokuphambene nendawo engaphezulu (A).

Uma amandla emakhulu, ingcindezi iba nkulu. Uma indawo engaphezulu inkulu, ingcindezi iba ncane.

Ngokusekelwe esithombeni, indawo enkulu kunazo zonke ethinta phansi yinto III, ngakho-ke ingcindezi yento III phansi incane kunazo zonke

2. Uma isisindo sonxantathu abane ngezansi sifana, ingcindezi enkulu phansi iboniswa yisithombe …

Isixazululo

P = F / A = w / A

P= ingcindezi, F = qinisa, w = isisindo, A = indawo engaphezulu

Ngokusekelwe kule fomula kuphethwa ngokuthi ingcindezi (P) ilingana ngqo namandla (F) futhi ilingana ngokuphambene nendawo engaphezulu (A).

Uma amandla emakhulu, sikhulu ingcindezi. Uma indawo engaphezulu inkulu, ingcindezi iba ncane.

Indawo encane kakhulu ebusweni inomfutho omkhulu kakhulu.

3. Ingcindezi enkulu kakhulu iboniswa yisithombe...

Isixazululo

P = F / A = w / A

P= ingcindezi, F = qinisa, w = isisindo, A = indawo engaphezulu

Ngokusekelwe kule fomula kuphethwa ngokuthi ingcindezi (P) ilingana ngqo namandla (F) futhi ilingana ngokuphambene nendawo engaphezulu (A).

Uma amandla emakhulu, sikhulu ingcindezi. Uma indawo engaphezulu inkulu, ingcindezi iba ncane.

Indawo encane kakhulu ebusweni inomfutho omkhulu kakhulu.

4. Amandla ka-500 Newton asebenza endaweni engamamitha angu-2.5². Anqume ingcindezie.

Kwaziwa:

Amandla (F) = 500 Newton

Indawo engaphezulu (A) = 2.5 m²

Kufunwa: Ingcindezi (P)

Isixazululo:

Ukucindezela (P):

P = F / A

P = 500 / 2.5

P = 200 N/m²

P = 200 Pascal

5. Isisindo sebhokisi = 75 kg kanye ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²Thola ingcindezi phansi.

Kwaziwa:

Isisindo (m) = 75 kg

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²

Isisindo (w) = mg = (75 kg)(10 m/s²) = 750 kg m/s² = 750 uNewton

Indawo engaphezulu (A) = amamitha ayi-6 x amamitha ayi-5 = 30 m²

Kufunwa: Ukucindezela phansi

Isixazululo:

P = F/A = w/A = 750/30 = 25 N/m²

6. Isisindo sebhokisi singama-24 kg. Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s²Thola ingcindezi phansi.

Kwaziwa:

Isisindo (m) = 24 kg

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²

Isisindo (w) = mg = (24 kg)(10 m/s²) = 240 kg m/s² = 240 uNewton

Indawo engaphezulu (A) = 1 mx 0.4 m = 0.4 m²

Kufunwa: Ingcindezi phansi

Isixazululo:

P = F / A = w / A

P= ingcindezi, F = qinisa, w = isisindo, A = indawo engaphezulu

Ukucindezela phansi:

P = 240 N / 0.4 m² = 600 N/m²

1. Kuyini ukucindezela uma kukhulunywa ngezinto eziqinile?
   • Impendulo: Ukucindezela kuchazwa njengamandla asetshenziswa endaweni ngayinye. Uma kusetshenziswa ezintweni eziqinile, kubhekisela emandleni asetshenziswa yinto eqinile kwenye indawo ehlukaniswe yindawo yokuxhumana.
2. Indawo yokuxhumana ithinta kanjani ingcindezi ekhishwa yinto eqinile?
   • Impendulo: Ingcindezi ekhishwa yinto eqinile ilingana ngokuphambene nendawo yokuxhumana. Uma amandla ehlala engaguquki, ukwandisa indawo yokuxhumana kuzonciphisa ingcindezi, futhi ukunciphisa indawo yokuxhumana kuzokhulisa ingcindezi.
3. Kungani izinto ezibukhali njengezinaliti nezipikili zingena kalula ezindaweni?
   • ImpenduloIzinto ezibukhali zinendawo encane kakhulu yokuthintana. Uma kusetshenziswa amandla, lokhu kubangela ukucindezela okuphezulu esicongweni, okwenza kube lula ukungena kwezinye izinto.
4. Izicathulo zeqhwa zimvimbela kanjani umuntu ukuthi angene shí eqhweni?
   • Impendulo: Izicathulo zeqhwa zisabalalisa isisindo somuntu endaweni enkulu, zinciphisa ingcindezi eqhweni. Lokhu kuvimbela noma kunciphisa ukucwila.
5. Kungani amaloli anzima enamathayi amakhulu nabanzi kunezimoto ezincane?
   • Impendulo: Amathayi amakhulu nabanzi asabalalisa isisindo esinzima seloli endaweni enkulu, okunciphisa ingcindezi eba khona emgwaqweni. Lokhu kusiza ekuvimbeleni umonakalo womgwaqo nokunikeza ukubamba okungcono.
6. Ingcindezi ihlobene kanjani nokujula kwekholomu yento eqinile?
   • Impendulo: Ngokungafani noketshezi, ingcindezi ezintweni eziqinile ayikhuphuki njalo ngokujula ngendlela ebikezelwayo ngenxa yamandla adonsela phansi kuphela. Ingcindezi ekujuleni kwento eqinile incike kokubili esisindweni sayo ngaphezu kwalelo phuzu kanye nezakhiwo zezinto eziqinile.
7. Kungani incwadi esindayo ingase ingalimazi itafula kodwa into ecijile enesisindo esincane ingalimaza?
   • Impendulo: Ingcindezi ekhishwa yinto iwumsebenzi wesisindo sayo kanye nendawo lapho leso sisindo sisakazwa khona. Incwadi esindayo isakaza isisindo sayo endaweni enkulu, okuholela ekucindezelekeni okuphansi. Into ecijile, noma ngabe ilula, igxilisa amandla ayo endaweni encane kakhulu, okuholela ekucindezelekeni okuphezulu, okungalimaza itafula.
8. Ukusatshalaliswa kwengcindezi ezintweni eziqinile kuthinta kanjani izisekelo zesakhiwo?
   • Impendulo: Izisekelo zokwakha zisabalalisa isisindo sesakhiwo endaweni enkulu, kunciphisa ingcindezi emhlabathini ongaphansi. Ukusatshalaliswa kwengcindezi okufanele kuqinisekisa ukuthi isakhiwo asicwili noma asithambeki ngenxa yokuma okungalingani.
9. Kungani izithende eziphakeme zivame ukushiya imifantu ezindaweni ezithambile?
   • Impendulo: Izithende eziphakeme zigxilisa isisindo somuntu ogqokile endaweni encane kakhulu, okuholela ekucindezelekeni okuphezulu lapho kuhlangana khona. Ezindaweni ezithambile, lokhu kucindezela okuphezulu kungabangela ukugoba noma amamaki.
10. Uma ucindezela isandla sakho odongeni, kungani singacwili odongeni njengoba singacwila ngento ethambile?

• Impendulo: Izakhiwo zodonga nezinto zalo ziyamelana nokuguquguquka, noma ngabe kusetshenziswa amandla (isandla sakho). Ngenkathi kukhona ingcindezi ekhishwa yisandla sakho odongeni, izinto zalo odongeni ziqinile futhi ziqinile ngokwanele ukumelana nengcindezi, zivimbela isandla sakho ukuthi singacwili.