Magulu a Gurumuda
Ma circuit amagetsi okhala ndi ma resistors ofanana komanso amkati - mavuto ndi mayankho
1. Kutengera chithunzi chomwe chili pansipa, ngati gwero la mphamvu yamagetsi (emf) ndi 24 Volts, dziwani mphamvu yamagetsi I.
Zodziwika:
Gwero la emf = 24 Volt
Kukana kwamkati (r) = 2 Ohms
Zotsutsa 40 Ohm, 20 Ohm, ndi 20 Ohm.
Kuwerengera momwe mphamvu zamagetsi zimagwiritsidwira ntchito ndi zida zamagetsi - mavuto ndi mayankho
1. M'nyumba, muli nyali 5 zomwe zimagwiritsidwa ntchito maola 14 patsiku, firiji ya 200 Watts yomwe imagwiritsidwa ntchito maola 24 patsiku, ndi pampu yamadzi ya 125 Watts yomwe imagwiritsidwa ntchito maola 8 patsiku. Kodi mphamvu zamagetsi zingati zomwe zimagwiritsidwa ntchito kwa mwezi umodzi (masiku 30)?
Zodziwika:
Mphamvu ya nyali = 5(25) = 125 Watt ndi nthawi yogwiritsira ntchito = maola 14 x 30 = maola 420
Mphamvu ya firiji = 200 Watts ndipo nthawi yogwiritsira ntchito = maola 24 x 30 = maola 720
Mphamvu ya pampu yamadzi = 125 Watts ndipo nthawi yogwiritsira ntchito = maola 8 x 30 = maola 240
Mitundu ya magetsi - mavuto ndi mayankho
1. Kutengera chithunzi cha magetsi omwe ali pansipa.
Zinthu A ndi D zili ndi mphamvu yoipa (-), chinthu A chimakopa chinthu B ndikuthamangitsa chinthu C, chinthu D chimathamangitsa E. Dziwani mtundu wa mphamvu yamagetsi ya zinthu B, C, ndi E.
A. Zabwino, Zabwino, Zoipa
B. Zoyipa, Zoyipa, Zabwino
C. Zabwino, Zoipa, Zoipa
D. Zabwino, Zoipa, Zabwino
Makina 6 Osavuta (Chingwe Chozungulira) - Mavuto ndi Mayankho
1.
Ndi ndege iti yopendekera yomwe ili ndi ubwino wofanana wamakina
Kuona pafupi ndi kuwona patali - mavuto ndi mayankho
1. Mwana amene ali ndi vuto la makutu amatha kuwerenga buku pafupifupi mita imodzi. Kuti muwerenge pa mtunda wabwinobwino wa 25 cm, dziwani kuti mphamvu ya lenzi iyenera kugwiritsidwa ntchito ndi mwana.
Yankho:
Mwanayo amaona patali , pomwe malo apafupi ndi maso ake ndi mita imodzi kapena 100 cm. Malo apafupi ndi maso abwinobwino ndi 25 cm. Diso likhoza kusinthidwa kukhala labwinobwino pogwiritsa ntchito lenzi yozungulira.
Mphamvu ya Kinetic - mavuto ndi mayankho
1. Magalimoto awiri ali ndi kulemera kofanana , akuyenda ndi mphamvu yosiyana ya kinetic. Mphamvu ya kinetic ya galimoto yoyamba ndi kuwirikiza kasanu ndi kanayi kuposa mphamvu ya kinetic ya galimoto yachiwiri. Kuyerekeza liwiro la galimoto yoyamba ndi galimoto yachiwiri ndi…..
Zodziwika:
Kulemera kwa galimoto A (m A ) = m
Kulemera kwa galimoto B (m B ) = m
Mphamvu ya kayendedwe ka galimoto B (K E B ) = K E
Mphamvu ya kayendedwe ka galimoto A (K E A ) = 9 K E
Liwiro la mafunde opingasa - mavuto ndi mayankho
1.
Ngati nthawi yofunikira kuti muyende kuchokera ku A kupita ku B ndi masekondi awiri, dziwani liwiro la mafunde opingasa.
Zodziwika:
Mtunda AB = mamita 6 pa sekondi
Nthawi yopuma AB = masekondi awiri
Kufunidwa: Liwiro la mafunde opingasa
Ma radiation - mavuto ndi mayankho
1. Kutengera chithunzi chomwe chili pansipa, mphamvu ya radioactive pambuyo pa kuwola kwa maola 13.86 ndi ...
Zodziwika:
Hafu ya moyo (T 1/2 ) = maola 6.93
Kutha kwa nthawi (t) = maola 13.86
Kufunidwa: ntchito ya radioactive
Skuruu ya micrometer - mavuto ndi mayankho
1. Muyeso wa m'mimba mwake wa waya pogwiritsa ntchito micrometer ndi 2.48 mm. Chithunzi chogwirizana ndi zotsatira za muyeso ndi…
Yankho:
