kinetic ndi mphamvu zomwe zingatheke

kusiyana kwa mphamvu ya kinetic ndi kuthekera

Kinetic mphamvu ndi mphamvu yokhudzana ndi kuyenda ndipo mphamvu yomwe ingakhalepo ndi mphamvu yokhudzana ndi udindo mu dongosolo. Nthawi zambiri, mphamvu ndi kuthekera kogwira ntchito. Mphamvu za kinetic ndi mphamvu zomwe zingatheke zikuyimira mitundu iwiri ya mphamvu yomwe ilipo. Mphamvu ina iliyonse ndi mtundu wina wa mphamvu zomwe zingatheke kapena mphamvu ya kinetic kapena kuphatikiza zonse ziwiri. Mwachitsanzo, mphamvu zamakina ndi kuphatikiza mphamvu ya kinetic ndi kuthekera.

M'nkhaniyi tikukuuzani zonse zomwe muyenera kudziwa zokhudza mphamvu ya kinetic ndi mphamvu, makhalidwe ake ndi zitsanzo.

kinetic ndi mphamvu zomwe zingatheke

kinetic ndi mphamvu zomwe zingatheke

Mphamvu zamagetsi

Kinetic mphamvu ndi mtundu wa mphamvu zomwe zimagwirizanitsidwa ndi kuyenda. Chilichonse chomwe chimayenda chimakhala ndi mphamvu ya kinetic. Mu International System (SI), unit of kinetic energy ndi jouje (J), yomwe ndi gawo limodzi ndi ntchito. Joule imodzi ndi yofanana ndi 1 kg.m2/s2. Pali zitsanzo zambiri za kugwiritsa ntchito mphamvu ya kinetic m'moyo watsiku ndi tsiku.

  • Bowling: Bowling ndi munthu akuponya mpira wa 3-7kg kuti agwetse zikhomo 10, zomwe zimachokera ku mphamvu ya kinetic yomwe imayendetsedwa ndi mpira, zomwe zimadalira kulemera ndi liwiro la mpirawo.
  • Mphepo: Mphepo si kanthu kena koma mpweya ukuyenda. Mphamvu ya kinetic yoyendetsa mpweya imatha kusinthidwa kukhala magetsi pogwiritsa ntchito ma turbines amphepo.
  • Mphamvu yotentha: Mphamvu yamafuta ndi mphamvu ya kinetic yomwe imalumikizidwa ndi kuyenda kwa tinthu tating'ono mu dongosolo. Tikatenthetsa madzi kapena chinthu china chilichonse, timawonjezera mphamvu ya kinetic kudzera mu kutumiza kutentha.

Mphamvu zamagetsi

Mphamvu zomwe zingatheke ndi mtundu wa mphamvu yokhudzana ndi malo omwe ali mkati mwa dongosolo, ndiko kuti, malo a chinthu chimodzi polemekeza china. Maginito awiri osiyana ali ndi mphamvu zotha kufananiza wina ndi mzake. Mu SI, gawo la mphamvu yotheka ndi jouje (J), monganso mphamvu ya kinetic. Joule imodzi ndi yofanana ndi 1 kg.m2/s2.

Zambiri zomwe timagwiritsa ntchito popangira mphamvu zimadalira mphamvu zomwe zingatheke.

  • Mphamvu zosungidwa m'madamu: Madzi osungidwa m'madzi okwera, monga damu, amakhala ndi mphamvu yokoka. Madzi akagwa, amasintha mphamvu zomwe zingatheke kukhala mphamvu ya kinetic yomwe imatha kugwira ntchito m'ma turbines omwe ali pansi pa damu. Magetsi opangidwa ndi ma turbines awa amagawidwa ku netiweki yogawa komweko.
  • Springs: Kasupe akatambasulidwa kapena kuponderezedwa, amasunga mphamvu zinazake monga mphamvu zotanuka. Kasupe akatulutsidwa, mphamvu yosungidwa yosungidwa imasinthidwa kukhala mphamvu ya kinetic.
  • Uta ndi muvi: Uta ndi muvi ndi chitsanzo cha momwe mphamvu zotanuka zimasinthira kukhala mphamvu ya kinetic. Pamene chingwe cha uta chatambasulidwa, ntchito yochitidwa imasungidwa mu chingwe chotambasulidwa ngati mphamvu yotheka. Mukamasula chingwecho, mphamvu zomwe zingatheke za chingwecho zimasinthidwa kukhala mphamvu ya kinetic, yomwe imasamutsidwa ku muvi.
  • Magetsi: Magetsi ndi mtundu wa mphamvu zomwe zingatheke zomwe zimatsimikiziridwa ndi malo omwe amalipira mu dongosolo (munda wamagetsi).

Kodi mphamvu ya kinetic imagwira ntchito bwanji?

kuthekera mphamvu

Pamene chinthu chikuyenda ndi chifukwa chokhala ndi mphamvu ya kinetic. Ngati chiwombana ndi chinthu china, ikhoza kusamutsa mphamvu iyi kwa icho, kotero chinthu chachiwiri chimayendanso. Kuti chinthu chipeze zoyenda kapena mphamvu ya kinetic, ntchito kapena mphamvu ziyenera kugwiritsidwa ntchito kwa icho.

Pamene mphamvuyo ikugwiritsidwa ntchito nthawi yayitali, kuthamanga kwakukulu komwe kumachitika ndi chinthu chosuntha ndi mphamvu yake ya kinetic. Misa imagwirizananso ndi mphamvu yoyenda. Kuchuluka kwa thupi kumapangitsanso mphamvu ya kinetic. Ikhoza kusinthidwa mosavuta kukhala kutentha kapena mitundu ina ya mphamvu.

Zina mwa mawonekedwe a kinetic mphamvu tili nazo:

  • Ndi chimodzi mwa mawonetseredwe a mphamvu.
  • Ikhoza kusamutsidwa kuchoka ku thupi kupita ku lina.
  • Ikhoza kusinthidwa kukhala mtundu wina wa mphamvu, mwachitsanzo, kukhala mphamvu yotentha.
  • Muyenera kugwiritsa ntchito mphamvu kuti muyambe kuyenda.
  • Zimatengera kuthamanga ndi kulemera kwa thupi.

Kuchuluka kwa mphamvu ya kinetic ndi mphamvu zomwe zingatheke zimapanga mphamvu zamakina (mphamvu zomwe zimagwirizana ndi malo a chinthu ndikuyenda kwake). Monga tanena kale, dynamics amatanthauza kuyenda. Kuthekera kumatanthauza kuchuluka kwa mphamvu zomwe zimasungidwa m'thupi panthawi yopuma.

Choncho, mphamvu zomwe zingatheke zidzadalira malo a chinthu kapena dongosolo pokhudzana ndi mphamvu yomwe ikuzungulira. Mphamvu ya kinetic imadalira kusuntha kwa chinthu.

Mitundu yamphamvu

chitsanzo cha mphamvu zomwe zingatheke

mphamvu yokoka yotheka

Mphamvu yokoka imatanthauzidwa ngati mphamvu yokhala ndi chinthu chachikulu ikamizidwa m'munda wokoka. Magawo okoka amapangidwa mozungulira zinthu zazikulu kwambiri, mofanana ndi unyinji wa mapulaneti ndi dzuŵa.

Mwachitsanzo, chogudubuza chimakhala ndi mphamvu zapamwamba kwambiri pamtunda wake wapamwamba kwambiri chifukwa cha kumizidwa m'munda wadziko lapansi. Galimotoyo ikagwa ndikutaya kutalika, mphamvu yomwe ingatheke imasinthidwa kukhala mphamvu ya kinetic.

zotanuka kuthekera mphamvu

Mphamvu zomwe zimatha kukhazikika zimayenderana ndi mphamvu zotanuka za chinthu, ndiko kuti, chizolowezi chake chobwerera ku mawonekedwe ake oyamba pambuyo poyesedwa ndi mphamvu yopunduka kuposa kukana kwake. Chitsanzo chodziwikiratu cha mphamvu zotanuka ndi mphamvu yomwe ili ndi kasupe, yomwe imakula kapena kugwirizanitsa chifukwa cha mphamvu yakunja ndikubwerera ku malo ake oyambirira mphamvu yakunja ikachotsedwanso.

Chitsanzo china ndi uta ndi muvi dongosolo, pamene uta kukokedwa ndi zotanuka ulusi, zotanuka angathe mphamvu kufika pazipita, pang'ono kupinda nkhuni, koma liwiro amakhala ziro. M'kanthawi kochepa, mphamvu zomwe zingatheke zimasinthidwa kukhala mphamvu ya kinetic ndipo muvi umawombera mofulumira.

mankhwala kuthekera mphamvu

Mphamvu yamphamvu ya Chemical ndi mphamvu yomwe imasungidwa m'magulu a ma atomu ndi mamolekyu. Chitsanzo ndi shuga m'thupi lathu, yomwe Amasunga mphamvu zomwe thupi lathu limasintha (kudzera mu njira yotchedwa kagayidwe kachakudya) kulowa mu mphamvu ya kutentha kuti thupi likhale lotentha.

Chimodzimodzinso ndi mafuta oyambira pansi (ma hydrocarbon) mu thanki yamafuta agalimoto. Mphamvu yamagetsi yomwe imatha kusungidwa m'mabondi amafuta amafuta amasinthidwa kukhala mphamvu yamakina yomwe imayendetsa galimotoyo.

electrostatic kuthekera mphamvu

Mu magetsi, lingaliro la mphamvu zomwe zingatheke limagwiranso ntchito, zomwe zingathe kusinthidwa kukhala mphamvu zina, monga kinetic, kutentha kapena kuwala, chifukwa cha kusinthasintha kwakukulu kwa electromagnetism. Pankhaniyi, mphamvu imachokera ku mphamvu ya magetsi opangidwa ndi tinthu tating'onoting'ono.

Ndikukhulupirira kuti ndi chidziwitsochi mutha kuphunzira zambiri za kinetic ndi mphamvu zomwe zingatheke.


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