Mfundo ya Pascals - mavuto ndi mayankho

Mfundo ya Pascals - mavuto ndi mayankho

1. Wodziwika:

Malo a A 1 = 10 cm 2

Malo a A 2 = 100 cm 2

Mphamvu 2 (F 2 ) = 100 Newton

Akufuna: Mphamvu 1 (F 1 )

Yankho:

P = F/A

P = kupanikizika , F = mphamvu , A = dera

P1 =F1 / TO1
P2 =F2 / TO2

P1 =P2
F1 / TO1 =F2 / TO2

F 1 / 10 cm 2 = 100 N / 100 cm 2

F 1 / 10 = 1 N

F 1 = (10)(1 N)

F 1 = 10 Newton

2. Ngati dera la A 1 = 0.001 m2 ndipo dera la A 2 = 0.1 m2 , mphamvu yolowera yakunja F 1 = 100 N, ndiye mphamvu yotulutsa yakunja F 2?

Zodziwika:Mfundo ya Pascal - mavuto ndi mayankho 2

Dera la A 1 = 0.001 m 2

Dera la A 2 = 0.1 m 2

Mphamvu yolowera yakunja F 1 = 100 Newtons

Kufunidwa : Mphamvu yotulutsa yakunja (F 2 )

Yankho:

P1 =P2
F1 / TO1 =F2 / TO2

100 N / 0.001 m 2 = F 2 / 0.1 m 2

100 N / 0.001 = F 2 / 0.1

100,000 N = F 2 / 0.1

F 2 = (0.1)(100,000 N)

F 2 = 10,000 N

3. Kulemera kwa galimoto = 16,000 N. Kodi mphamvu yolowera yakunja ndi chiyani?

Zodziwika:Mfundo ya Pascal - mavuto ndi mayankho 3

Kulemera kwa galimoto (w) = 16,000 N

Malo a B (A B ) = 4000 cm 2 = 4000 / 10,000 m 2 = 4 / 10 m 2 = 0.4 m 2

Malo a A (A A ) = 50 cm 2 = 50 / 10,000 m 2 = 0.005 m 2

Akufuna: Force F

Yankho:

F / A A = w / A B

F / 0.005 m 2 = 16,000 N / 0.4 m 2

F / 0.005 = 16,000 N / 0.4

F / 0.005 = 40,000 N

F = (40,000 N)(0.005)

F = 200 Newton

4.

Dera la A ndi 60 cm 2 ndipo dera la B ndi 4,200 cm 2 , dziwani mphamvu yolowera yakunja ya F.

Zodziwika:Mfundo ya Pascal - mavuto ndi mayankho 3

Malo a A (A A ) = 60 cm 2

Malo a B (A B ) = 4200 cm 2

Kulemera w (w) = 3500 Newton

Akufuna: F 1

Yankho:

Mphamvu ya F yowerengedwa pogwiritsa ntchito equation ya mfundo ya Pascal :

F 1 / A 1 = F 2 / A 2

F 1 / 60 cm 2 = 3500 N / 4200 cm 2

F 1 / 60 = 35 N / 42

F 1 = (60)(35) / 42

F 1 = 2100 / 42

F1 = 50 Newtons

5. Chokweza cha hydraulic chili ndi gawo lalikulu lopingasa ndi gawo laling'ono lopingasa. Malo akuluakulu opingasa ndi ochulukirapo ka 20 kuposa malo ang'onoang'ono opingasa. Ngati pa gawo laling'ono lopingasa pali mphamvu yolowera ya 25 N, ndiye dziwani mphamvu yotulutsa.

Zodziwika:

Malo ang'onoang'ono opingasa (A 1 ) = A

Malo akuluakulu odutsa (A 2 ) = 20A

Mphamvu yolowera (F 1 ) = 25 N

Kufunidwa: Mphamvu yotulutsa (F 2 )

Yankho:

Mfundo ya Pascal - mavuto ndi mayankho 7

  1. Kodi mfundo ya Pascal ndi chiyani?
    • yankhoMfundo ya Pascal imati kusintha kulikonse kwa kuthamanga kwa magazi komwe kumachitika nthawi iliyonse mu madzi kumafalikira mosachepera m'madzi onse mbali zonse.
  2. Kodi chokweza cha hydraulic chimagwira ntchito bwanji potengera mfundo ya Pascal?
    • yankho: Mu chokweza cha hydraulic, mphamvu yaying'ono yomwe imagwiritsidwa ntchito pa pistoni yaing'ono imapanga kupanikizika komwe kumatumizidwa kosachepera ku pistoni yaing'ono. Izi zimapangitsa mphamvu yayikulu pa pistoni yayikulu, zomwe zimapangitsa kuti inyamule zinthu zolemera.
  3. N’chifukwa chiyani kusintha kwa kupanikizika sikunachepe mu Mfundo ya Pascal?
    • yankho: Popeza madzi sagwedezeka, mphamvu ikayikidwa pa gawo limodzi la madzi, silingathe kugwedezeka, motero limasamutsa kusintha kwa mphamvuyo mofanana ku gawo lina lililonse la madzi.
  4. Kodi kuwonjezeka kwa kuya kumakhudza bwanji kuthamanga kwa madzi, poganizira mfundo ya Pascal?
    • yankho: Pamene kuya kumawonjezeka mu madzi, kupanikizika kumawonjezekanso chifukwa cha kulemera kwa madzi omwe ali pamwambapa. Izi zikugwirizana ndi mfundo ya Pascal chifukwa kukwera kwa kuthamanga kumachitika mofanana pa kuya kwinakwake.
  5. N’chifukwa chiyani makutu athu amatuluka tikamakwera kapena kutsika mofulumira mu ndege kapena tikamamira pansi pa madzi?
    • yankho: Kusintha kwadzidzidzi kwa kutalika kapena kuya kumabweretsa kusintha kwadzidzidzi kwa kuthamanga kwa mpweya m'malo ozungulira (mpweya kapena madzi). Makutu athu amatuluka ngati njira yofananira kuthamanga kwa mkati ndi kuthamanga kwakunja, mogwirizana ndi mfundo ya Pascal.
  6. Ngati sirinji yotsekedwa yopanda thovu la mpweya yatsekedwa, n’chifukwa chiyani zimakhala zovuta kufinya madzi omwe ali mkati?
    • yankhoMadzi sagwira ntchito mokwanira. Mukayesa kuchepetsa kuchuluka kwa madzi omwe ali mkati mwa syringe, kuthamanga kumawonjezeka, kukana kupsinjika, malinga ndi Pascal's Principle.
  7. Kodi mfundo ya Pascal imafotokoza bwanji za kuphulika kwa damu ngati dzenje laling'ono lapangidwa pansi pake?
    • yankhoChifukwa cha kulemera kwa madzi, mphamvu yomwe ili pansi pa damu ndi yayikulu. Ngakhale kampata kakang'ono kamalola mphamvu imeneyi kuti igwiritsidwe ntchito pa nyumba zozungulira, zomwe zingayambitse kuwonongeka kwakukulu kwa damu.
  8. N’chifukwa chiyani n’kosavuta kukhetsa madzi kuchokera mu botolo lodzaza ndi madzi kusiyana ndi botolo lopanda madzi?
    • yankhoBotolo lodzaza limakhala ndi madzi ambiri omwe, akamafinyidwa, amatumiza mphamvu yogwiritsidwa ntchito bwino m'madzi onse motsatira mfundo ya Pascal. Botolo lopanda kanthu limakhala ndi mpweya wochuluka, womwe ungathe kupanikizika, kotero mphamvu yomweyo siimatulutsa madzi ambiri ngati mphamvu.
  9. Mu makina a hydraulic, kodi mphamvu yotulutsa nthawi zonse imakhala yayikulu kuposa mphamvu yolowetsa?
    • yankho: Sikofunikira kwenikweni. Chiŵerengero cha mphamvu yotulutsa mphamvu ku mphamvu yolowetsa chimatsimikiziridwa ndi chiŵerengero cha madera a ma pistoni otulutsa ndi olowetsa. Dongosololi lapangidwa kuti liwonjezere mphamvu mwa kukhala ndi malo akuluakulu a pistoni otulutsa mphamvu kuposa olowetsa, koma chiŵerengero cha dera ndi chomwe chimatsimikizira kukulitsa mphamvu.
  10. Poganizira mfundo ya Pascal, n’chifukwa chiyani zolengedwa za m’nyanja zili ndi matupi olimba komanso opapatiza?
  • yankho: Zamoyo za m'nyanja yakuya zimakumana ndi kupsinjika kwakukulu chifukwa cha kulemera kwa mzati wamadzi womwe uli pamwamba pake. Kuti zipulumuke, zamoyozi zasanduka kukhala ndi matupi olimba komanso opapatiza omwe amatha kupirira kupsinjika kwakukulu kumeneku.
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