Fiziki ya Sukulu ya Sekondale

Zamagetsi Zolipiritsa

Chonde yang'anani chimodzi mwa zinthu zomwe zikukuzungulirani. Ngati muwononga chinthu, mwachitsanzo mwala, mwalawo udzagawanika m'zidutswa zingapo zazing'ono. Ngati mwalawo waphwanyidwanso, mwalawo udzasanduka zidutswa zazing'ono kwambiri. Nanga bwanji ngati zidutswa za miyalazo zaphwanyidwanso? ​​Inde, zidutswa za miyalazo zaphwanyidwa ndi kusanduka zidutswa zazing'ono kwambiri. Kodi miyala ingagawidwe m'zidutswa zazing'ono kwambiri mpaka itakhala yopanda malire? Zoona zake zikusonyeza kuti chinthu chilichonse chomwe chingagawidwe m'zidutswa zazing'ono chidzafika pamalo pomwe gawo laling'ono kwambiri la chinthucho silingagawidwe m'zidutswa zazing'ono. Gawo laling'ono kwambiri la chinthu chomwe sichingagawidwenso limatchedwa atomu. Chifukwa chake atomu ndi gawo laling'ono kwambiri la chinthu chilichonse m'chilengedwe chonse.

Werengani zambiri

Malamulo a Newton oyendetsera zinthu ali ndi atatu, omwe ndi lamulo loyamba la Newton, lamulo lachiwiri la Newton ndi lamulo lachitatu la Newton.

Lamulo Loyamba la Newton

Lamulo Loyamba la Newton limati chinthu chilichonse chomwe chili pampando chidzakhalabe pampando kapena chinthu chilichonse chomwe chikuyenda molunjika pa liwiro losasintha chidzapitiriza kuyenda molunjika pa liwiro losasintha ngati mphamvu yonse yomwe ikugwira ntchito pa chinthucho ndi zero.

Werengani zambiri

Kukangana ndi mphamvu yomwe imaletsa kuyenda kwa chinthu. Mphamvu imeneyi imagwira ntchito pakati pa malo olumikizana. Munkhaniyi, kukangana komwe kwaphunziridwa kukukhudzana ndi mphamvu yomwe imagwira ntchito pakati pa malo awiri olimba omwe alumikizana, monga kukangana pakati pa maziko a chipika ndi pansi, kukangana pakati pa pansi pa nsapato ndi pansi, kapena kukangana pakati pa gudumu la galimoto ndi msewu.

Werengani zambiri

Mphamvu yolunjika
Momentum yolunjika kapena yofupikitsidwa nthawi zambiri ngati momentum imatanthauzidwa ngati zotsatira za kulemera ndi liwiro.
p = mv
Kufotokozera: p = mphamvu, m = kulemera (kilo), v = liwiro (mita/sekondi)
Momentum ndi kuchuluka kwa vector kotero kupatula kukhala ndi kukula, momentum ilinso ndi komwe ikupita. Kulunjika kwa momentum kuli kofanana ndi komwe ikupita liwiro la chinthu kapena komwe ikupita.

Werengani zambiri

Chiphunzitso cha mphamvu ya ntchito-kinetic chimati ntchito yonse, kapena khama lochitidwa ndi mphamvu ya net force pa chinthu, ndi lofanana ndi kusintha kwa mphamvu ya kinetic ya chinthucho. Ngati mphamvu ya net force ikugwira ntchito yabwino (mphamvu ya net force ili mbali imodzi ndi kusamuka), ndiye kuti mphamvu ya kinetic ya chinthucho imawonjezeka. Mosiyana ndi zimenezi, ngati mphamvu ya net force ikugwira ntchito yoipa (mphamvu ya net force ili mbali yosiyana ndi kusamuka), ndiye kuti mphamvu ya kinetic ya chinthucho imachepa.

Werengani zambiri

Ngati mutakankhira buku patebulo mpaka litasuntha, mukugwira ntchito pa bukulo. Ngati chinthu chagwera padziko lapansi chifukwa chakuti chakokedwa ndi mphamvu yokoka, ndiye kuti mphamvu yokoka imagwira ntchito pa chinthucho. Mosiyana ndi zimenezi, ngati mutakankhira chinthu ndi mphamvu zanu zonse mpaka mutanyowa ndi thukuta koma chinthucho sichisuntha, ndiye kuti simunagwire ntchito pa chinthucho. M'moyo watsiku ndi tsiku, anthu ena amanena kuti mwagwira ntchito kapena mwagwira ntchito molimbika kuti mukankhire chinthucho, koma malinga ndi sayansi , simunagwire ntchito pa chinthucho chifukwa chinthucho sichimasuntha.

Werengani zambiri

M'miyoyo yathu ya tsiku ndi tsiku, nthawi zambiri timakumana ndi zinthu zomwe zimayenda mozungulira. Chitsanzo chimodzi cha chinthu chomwe chimayenda mozungulira ndi dzanja lachiwiri, dzanja la mphindi, ndi dzanja la ola pa wotchi ya analog. Dzanja lachiwiri nthawi zonse limayenda ngodya ya 360 ^° mu masekondi 60 (mphindi imodzi) kapena ngodya ya 6 ^° mu sekondi imodzi. Dzanja la mphindi nthawi zonse limayenda ngodya ya 360 ^° mu mphindi 60 (ola limodzi) kapena ngodya ya 6 ^° mu mphindi imodzi. Dzanja la ola nthawi zonse limayenda ngodya ya 360 ^° mu maola 24 (tsiku limodzi). Ngati chinthu chimayenda mozungulira nthawi zonse, monga dzanja lachiwiri, dzanja la mphindi, kapena dzanja la ola, ndiye kuti zinthuzi zimanenedwa kuti zikuchita kuyenda kozungulira kofanana . Kodi mungatchule chitsanzo cha kuyenda kozungulira komwe mwawona kapena kuganiza?

Werengani zambiri

Ngati mutambasula lamba wa rabara kapena tayala la rabara kufika pamalo enaake, lidzatambasuka. Mukatulutsa mphamvu, rabala idzabwerera kutalika kwake koyambirira. Mofananamo, mukatulutsa kasupe, idzatambasuka. Mukatulutsa, idzabwerera kutalika kwake koyambirira. Kasupe kapena rabala idzatambasuka ikatambasuka ndipo idzabwerera kutalika kwake koyambirira mphamvu ikatulutsidwa chifukwa ndi yotanuka. Kutanuka ndi kuthekera kwa chinthu kubwerera ku mawonekedwe ake oyambirira pamene mphamvu yomwe imagwiritsidwa ntchito pa icho yachotsedwa.

Werengani zambiri

Nkhani Yokhudza Malamulo Ofunika Kwambiri

Manambala ofunika ndi manambala omwe amapezeka kudzera mu miyeso yomwe imakhala ndi manambala ofunika enieni (omwe amawerengedwa pa chida choyezera) ndi chiwerengero chimodzi chomaliza choyezera.

Tiyerekeze kuti tiyesa kutalika kwa chinthu pogwiritsa ntchito rula (Malire olondola a rula ndi 1 mm kapena 0,1 cm) ndikupereka zotsatira zake m'ziwerengero zitatu zofunika, mwachitsanzo 4,55 cm. Ngati kutalika kwa chinthucho kwayesedwa pogwiritsa ntchito vernier caliper (Malire olondola a vernier caliper ndi 0,1 mm kapena 0,01 cm) ndipo zotsatira zake zanenedwa m'ziwerengero zinayi zofunika, mwachitsanzo 4,485 cm ndipo ngati zayesedwa ndi micrometer screw gauge (Malire olondola a micrometer screw gauge ndi 0,01 mm kapena 0,001 cm) ndipo zotsatira zake zanenedwa m'ziwerengero zisanu zofunika, mwachitsanzo 3,4845 cm. Izi zikusonyeza kuti chiwerengero cha ziwerengero zofunika zomwe zanenedwa ngati zotsatira zoyezera chikuwonetsa kulondola kwa muyeso. Ziwerengero zofunika kwambiri zomwe zinganenedwe, ndiye kuti muyesowo ndi wolondola kwambiri. Zachidziwikire, kuyeza kutalika kwa chinthu ndi micrometer screw gauge ndikolondola kwambiri kuposa ndi vernier caliper ndi rula.

Werengani zambiri

Nkhani za Malamulo a Kepler

Kodi mukukumbukira nthawi yanu yoyamba kukwera galimoto (osati pamene munali khanda)? Mukakhala mgalimoto yoyenda, munkaona ngati mitengo kapena nyumba zikuyenda. Panthawiyo, mwina munkaganiza kuti mitengo kapena nyumba zikuyenda, pamene inu ndi galimotoyo munali chete. Zoona zake n'zakuti, inu ndi galimotoyo munali kuyenda, pamene mitengo kapena nyumbayo munali chete. Timaonadi kuyenda kumeneku kapena kuyenda kolakwika tsiku lililonse. M'mawa uliwonse dzuwa “limatuluka” kum'mawa, kenako limapita kumadzulo ndipo “limalowa” kumadzulo masana. Mofananamo, usiku, nthawi zambiri mumawona mwezi ukusuntha kuchokera kum'mawa kupita kumadzulo. Kodi munayamba mwaganizapo kapena kuganiza kuti dzuwa ndi mwezi zimayenda mozungulira dziko lapansi, pamene dziko lapansi lili chete?

Werengani zambiri