Kimiyya

Tambayoyi da dabarun misali don rawar jiki mai jituwa na pendulum mai sauƙi

Sauƙin girgiza mai jituwa

1. Abu yana girgiza a mita 5 Hz a gefen hagu zuwa dama. Abu yana fara motsawa daga matsayin daidaitonsa zuwa dama. Lokacin da ake buƙata don isa wurin da ya fi dacewa sau goma sha ɗaya shine….

1. 2,05
2. 2,20
3. 2,25
4. 2,50

Tattaunawa

Karin bayani

Misalan tambayoyi da dabarun raƙuman sauti

Ingancin sauti

1. Matsayin ƙarfin sauti yana nuna ƙimar logarithmic na….

1. Kwatanta tsakanin wutar da ke cikin wani wuri da kuma wutar da tushen sauti ya samar
2. Ƙarfin sautin da ke cikin kowane yanki na sama
3. Ƙarfin sauti a wani tazara daga tushensa
4. Kwatanta tsakanin ƙarfin sauti da ƙarfin matakin jin ɗan adam

Tattaunawa

Karin bayani

Misalan tambayoyi da dabarun aiki da ka'idar makamashin aiki-kinetic

Ƙoƙari

1. Wani jika yana tura keken guragu na kakarsa a cikin wani wurin shakatawa mai da'ira da ƙarfin N20, radius na wurin shakatawa shine mita 7, nawa ne aikin jikan yake yi na juyawa sau biyu?

1. 0 joules
2. 1400 joules
3. 1540 joules
4. 1760 joules

Tattaunawa

Karin bayani

Tambayoyi da dabarun misalai na dokokin Newton

Dokar Farko ta Newton

1. Mutum yana cikin lif wanda ke tafiya da sauri akai-akai zuwa sama. Nauyin mutumin shine N800. Ba zato ba tsammani kebul ɗin ƙarfe da ke jan lif ɗin ya karye, wanda hakan ya sa lif ɗin ya faɗi. Ƙarfin da aka saba samu daga ƙasan lif ɗin a kan mutumin nan da nan kafin da kuma bayan ya karye kebul ɗin ƙarfe shine….

1. 800 N da 0
2. 800 N da 800 N
3. 1600 N da 0
4. 1600 N da 800 N

Tattaunawa

Karin bayani

Tambayoyi da dabaru na misalai na Vectors masu sakamako, Vector da Scalar Quantities

Sakamakon Vectors Biyu Masu Ƙarfi

1. Yara biyu A da B suna tura toshe, idan A suna tura toshe zuwa kudu da karfin N 400 da B a lokaci guda suna tura toshe zuwa gabas da karfin N 300, to karfin A da B da ke fitowa daga gare shi zai...

1. 100 N zuwa kudu
2. 100 N zuwa gabas
3. 500 N zuwa kudu maso gabas
4. 700 N zuwa kudu maso gabas

Tattaunawa

Karin bayani

Haka kuma a yi nazarin tattaunawar tambayoyin filin lantarki da misalan tambayoyin filin lantarki.

Domin sauƙaƙe fahimtar ƙarfin lantarki da zai iya aiki daga nesa, an gabatar da manufar fili. Masanin kimiyyar Burtaniya Michael Faraday (1791–1867) ne ya ƙirƙiro manufar filin lantarki.

Fahimta

A ce sandar gilashi ta farko ba ta da wutar lantarki. Bayan an shafa ta da zane, sandar gilashin za ta yi caji ta hanyar lantarki. Idan sandar gilashin tana da wutar lantarki , filin zai bayyana a lokaci guda a kusa da sandar gilashin. Idan sandar gilashin ta zama tsaka-tsaki, filin zai ɓace daga sararin samaniya a lokaci guda. Don haka wanzuwar filin ba za a iya raba shi da kasancewar wutar lantarki ba. Filin lantarki ba wani nau'in abu bane kamar iska kuma ba wani nau'in raƙuman ruwa bane kamar raƙuman lantarki, amma wani abu ne da wutar lantarki ke samarwa kuma yana shafar sararin da ke kewaye da cajin lantarki, inda tasirinsa ke faruwa ne kawai ta hanyar wasu cajin lantarki.

Karin bayani

A cikin labarin game da cajin lantarki da nau'ikan cajin lantarki, an bayyana cewa kamar cajin lantarki yana korar juna yayin da ba kamar cajin lantarki yake jawo hankalin juna ba. A wata ma'anar, abubuwa masu caji mai kyau suna jawo hankalin abubuwa masu caji mai kyau, abubuwa masu caji mai kyau suna korar abubuwa masu caji mai kyau, kuma abubuwa masu caji mai kyau suna korar abubuwa masu caji mai kyau. Wannan lamari yana nuna wanzuwar ƙarfin lantarki da ke aiki akan abubuwa masu caji mai kyau da abubuwa masu caji mai kyau. Waɗanne abubuwa ne ke tasiri ga girman ƙarfin lantarki tsakanin abubuwa masu caji mai lantarki?

Karin bayani

Idan ka yi gwaji mai sauƙi kamar yadda aka bayyana a cikin gwajin cajin lantarki , wataƙila ka yi mamakin gaskiyar cewa abubuwa na iya jawo hankali ko tunkuɗe juna. Me yasa sandunan filastik ke tunkuɗe juna amma suna jan hankalin juna da sandunan gilashi? Idan ka shafa wani yanki na filastik a kan busasshen gashi sannan ka kusance shi da ƙananan takardu, filastik ɗin yana jan hankalin takarda. Me yasa filastik kuma yana jan hankalin takarda waɗanda ba a fara shafa su da wani abu ba? Za ka fahimta har ma ka iya bayyana dalilan abubuwan da gilashi, filastik, takarda, ko wasu abubuwa suka fuskanta kamar yadda aka tattauna a sama, bayan ka yi nazarin batun cajin lantarki kuma ka fahimci bayanin da ke ƙasa.

Karin bayani

Kowanne abu a sararin samaniya yana da atoms . Atoms sun ƙunshi protons, neutrons, da electrons. Protons suna da positive charge, electrons suna da negative charge, kuma neutrons ba su da charger. Atom yana ɗauke da adadin electrons, protons, da neutrons. Idan adadin electrons yayi daidai da adadin protons, jimlar cajin lantarki akan atom ɗin sifili ne. Irin wannan atom ɗin ba shi da tsaka tsaki a wutar lantarki. Idan adadin electrons ya wuce adadin protons, atom ɗin yana da yawan electrons, wanda hakan ke sa ya yi charger mara kyau. Idan adadin electrons ya wuce adadin protons, atom ɗin yana da yawan protons, wanda hakan ke sa ya yi charger mara kyau.

Karin bayani

Misalai 2 na tambayoyin tauraron dan adam na ƙasa

1. Tauraron Dan Adam na Geostationary ko kuma tauraron Dan Adam na Geosynchronous sune tauraron dan adam da ke nan a batu ɗaya da iri ɗaya sama da ma'aunin duniya. Ana amfani da waɗannan tauraron dan adam don isar da siginar sadarwa (talabijin, wayoyin hannu), hasashen yanayi, da sauransu. Yaya tsawon tauraron dan adam na ƙasa yake sama da saman duniya?
G = ma'aunin nauyi na duniya = 6,67 x 10^-11 A'a m²/ kg²
M = nauyin duniya = 5,97 x 10²⁴ kg
T = lokacin juyawar tauraron dan adam = Lokacin juyawar duniya = awanni 24 = daƙiƙa 24 (daƙiƙa 3600) = daƙiƙa 86.400 = 8,64 x 10⁴ daƙiƙa

Karin bayani