Ihe atụ iri na anọ nke nsogbu dị na ime magnet
1. 
Ime magnet site n'ịcha ya bụ...
Mkparịta ụka
A na-eme magnetization site na ịpịcha site na ịpịcha magnet na ihe a ga-etinye magnet, ebe a na-etinye ihe ahụ n'otu ụzọ. Ogidi ndị e guzobere na ihe magnetized dabere na ogidi nke magnet ejiri mee ịpịcha. Ọ bụrụ na ogidi nke magnet ejiri mee ịpịcha bụ ogidi ugwu, mgbe ahụ njedebe nke ihe a na-etinyecha na-aghọ ogidi ndịda. N'aka nke ọzọ, ọ bụrụ na ogidi nke magnet ejiri mee ịpịcha bụ ogidi ndịda, mgbe ahụ njedebe nke ihe a na-etinyecha na-aghọ ogidi ugwu.
Azịza ziri ezi bụ C.
2. Ọdụ magnetik dị na solenoid nke a na-enye ọkụ eletrik bụ otu ihe ahụ dị ka ọdụ magnetik dị na...
A. magnet akpụkpọ ụkwụ ịnyịnya
B. magnet mmanya
C. magnet silinda
D. magnet agịga
Mkparịta ụka
Foto dị n'akụkụ bụ ihe atụ nke solenoid nke na-asọ. ọkụ eletrikSolenoid bụ waya nwere ọtụtụ ntụgharị. Mgbe ọkụ eletrik na-agafe na solenoid, ọ na-emepụta oghere magnet, ebe enwere ike ịchọpụta ogwe magnet site na iji iwu aka nri.
Ọdụ magnet nke solenoid mepụtara nwere ogidi ugwu na ndịda, dịka ọdụ magnet nke magnet eke. Ọ bụrụ na e kechie ihe gburugburu solenoid iji mee ka ọ bụrụ magnet, ọdụ magnet nke ihe ahụ ga-adị ka ọdụ magnet nke solenoid mepụtara. Ọ bụrụ na ihe ahụ bụ cylindrical, ọ ga-aghọ magnet cylindrical. Ọ bụrụ na ihe ahụ dị ka mkpanaka, ọ na-aghọ magnet bar. Ime magnet n'ụzọ dị otu a ka a na-akpọ magnetization site n'ịgafe ọkụ eletrik site na ya.
Ya mere, ebe ndọta dị na solenoid nke enyere ọkụ eletrik bụ otu ihe ahụ dị ka ebe ndọta dị na magnet mmanya ma ọ bụ magnet cylindrical.
Azịza ziri ezi bụ B na C.
3. 
Dabere na foto a, enwere ike ịchọpụta na...
A. A Ogidi Ugwu, B Ogidi Ugwu
B. A Ọdụ Ndịda, B Ọdụ Ugwu
C. A Ogidi Ndịda, B Ogidi Ndịda
D. A Ogidi Ugwu, B Ogidi Ugwu
Mkparịta ụka
Ọkụ eletrik na-esi n'ike dị elu na-asọpụta ruo n'ike dị ala. Lee akara batrị/emf; ike dị elu na-anọchi anya ahịrị dị ogologo, ebe ike dị ala na-anọchi anya ahịrị dị mkpụmkpụ.
Jiri iwu aka nri chọpụta ebe ọkụ eletrik na-aga na ebe ọkụ eletrik na-aga. Gbatịa aka nri gị, mepee aka gị, wee kwụzie mkpịsị aka ukwu gị ma gbagọọ mkpịsị aka anọ ndị ọzọ. Ụzọ mkpịsị aka anọ a gbagọrọ agbagọ dị otu ihe ahụ dị ka ụzọ ọkụ eletrik, ụzọ mkpịsị aka ukwu ahụ dịkwa otu ihe ahụ dị ka okporo ugwu nke ebe ọkụ eletrik. Ya mere, ogwe ugwu = B na ogwe ndịda = A.
Azịza ziri ezi bụ B.
4. Lee foto nke eriri igwe a!
Otu esi eme magnet a na ogwe osisi e dere X bụ...
A. magnet induction, ogidi U
B. elektrọmagnet, ogidi U
C. magnet induction, ogwe S
D. elektrọmagnet, ogidi S
Mkparịta ụka
Foto dị n'elu na-egosi otu esi eme magnet site n'ịgafe ọkụ eletrik site na ya. Ụzọ akụ ahụ na-egosi ntụziaka nke ọkụ eletrik. A na-eji iwu aka nri achọpụta ogidi magnet.
Gbatịa aka nri gị ma tinye ya ka ọ bụrụ na aka gị ga-eche ihu n'eluigwe, mee ka mkpịsị aka gị kwụ ọtọ ma gbagọọ mkpịsị aka anọ ndị ọzọ. Ụzọ mkpịsị aka anọ gbagọrọ agbagọ = ụzọ ọkụ eletrik na ụzọ mkpịsị aka ukwu = ụzọ nke ogwe ugwu nke ebe ndọta = ogwe X.
Azịza ziri ezi bụ B.
5. Enwere ike itinye ígwè n'ime ihe ndọta n'ụzọ ndị a, belụsọ...
A. mee ka ígwè ahụ dị nso na magnet
B. iji magnet tee ígwè
C. ikpo ọkụ ígwè ahụ ejikọtara na magnet ahụ
D. na-eduzi ọkụ eletrik site na ígwè
Mkparịta ụka
E nwere ụzọ atọ isi mee ka ígwè magnet dị: ijide ya nso na magnet (induction), iji magnet tee ya, na ịgafe ọkụ eletrik site na ya. A kọwara ụzọ atọ a nke ọma na mkparịta ụka nke ajụjụ ikpeazụ.
Azịza ziri ezi bụ C.
6. Kọwaa ụzọ atọ isi mee magnet!
Mkparịta ụka
1. Ịcha ígwè site na magnet
A na-eme magnetization site na ịpịcha site na ịpịcha magnet na ihe a ga-etinye magnet, ebe a na-etinye ihe ahụ n'otu ụzọ. Ogidi ndị e guzobere na ihe magnetized dabere na ogidi nke magnet ejiri mee ịpịcha. Ọ bụrụ na ogidi nke magnet ejiri mee ịpịcha bụ ogidi ugwu, mgbe ahụ njedebe nke ihe a na-etinyecha na-aghọ ogidi ndịda. N'aka nke ọzọ, ọ bụrụ na ogidi nke magnet ejiri mee ịpịcha bụ ogidi ndịda, mgbe ahụ njedebe nke ihe a na-etinyecha na-aghọ ogidi ugwu.
2. Ime ka ígwè dị nso na magnet (usoro induction)
Ịme ka ihe ndọta site na induction pụta ìhè gụnyere iweta ihe ahụ ka e mee ka ọ dị ka magnet nso ihe e metụrụla magnet, n'emetụghị ihe abụọ ahụ aka. Ọ bụrụ na e mee ka otu nsọtụ ihe ahụ dị nso na ogwe ugwu nke magnet, ọ na-aghọ ogwe ndịda. N'aka nke ọzọ, ọ bụrụ na e mee ka njedebe ihe ahụ dị nso na ogwe ndịda, ọ na-aghọ ogwe ugwu.
3. Ọkụ eletrik na-asọfe site na ígwè
Usoro nke ime magnet site n'ịgafe ọkụ eletrik site na ya ka egosiri na foto dị n'okpuru. A na-eji iwu aka nri ekpebi ogwe magnet ndị na-esi na ya apụta. Debe aka nri gị n'ihu ihu gị, na-eche ihu gị ihu. Gbaa mkpịsị aka anọ gị (ndeksi, etiti, mgbanaka, na obere mkpịsị aka). Ntugharị mkpịsị aka anọ gị dị otu ihe ahụ dị ka ntụziaka nke ọkụ eletrik dị na eriri waya, ntụziaka nke mkpịsị aka ukwu gị n'aka nri dịkwa otu ihe ahụ dị ka ntụziaka nke ubi magnet. Ubi magnet na-egosi mgbe niile site na ogwe ugwu gaa na ogwe ndịda. Ya mere, na onyonyo C, njedebe B bụ ogidi ugwu nke magnet, njedebe A bụ ogidi ndịda nke magnet.
7. A ga-eme ka ígwè ahụ ghọọ magnet dịka egosiri na foto dị n'okpuru.
Ogidi magnetik ndị dị n'ogwe ígwè bụ….
A. A = Ogidi Ugwu, B = Ogidi Ugwu
B. A = Ogidi Ndịda, B = Ogidi Ndịda
C. A = Ogidi Ugwu, B = Ogidi Ndịda
D. A = Ogidi Ndịda, B = Ogidi Ndịda
Mkparịta ụka
Foto dị n'elu na-egosi otu esi eme magnet site na ịpịa.
Ịhazi magnet site n'ịhịa ya gụnyere ịcha magnet megide ihe a ga-eme ka magnet dị, ebe a na-ete ya n'otu ụzọ. Ogidi ndị e ji mee magnet dị na-adabere na ogidi nke magnet e ji eme ihe ahụ.
Ọ bụrụ na ogidi magnetik e ji ehicha ihe bụ ogidi ugwu, mgbe ahụ njedebe ikpeazụ nke ihe a na-ehicha ihe na-aghọ ogidi ndịda. N'aka nke ọzọ, ọ bụrụ na ogidi magnetik e ji ehicha ihe bụ ogidi ndịda, mgbe ahụ njedebe ikpeazụ nke ihe a na-ehicha ihe na-aghọ ogidi ugwu.
N'ihe osise dị n'elu, a na-eji ogwe ndịda eme ihe maka ịkpụ ihe ka B = ogwe ugwu na A = ogwe ndịda.
Azịza ziri ezi bụ D.
8. Lee foto ahụ!
AB na-aghọ magnet site na data ndị a…..
Mkparịta ụka
Foto dị n'elu na-egosi otu esi eme ígwè ka ọ bụrụ magnet site n'ịgafe ọkụ eletrik site na ya. Ígwè bụ ihe magnet siri ike, nke pụtara na mgbe e tinyere ya na magnet, ọ na-aghọ magnet na-adịgide adịgide. Dịka ọmụmaatụ, Ígwè bụ ihe atụ nke ihe magnet dị nro, nke pụtara na mgbe e tinyere ya na magnet, ọ na-aghọ magnet nwa oge.
Dabere na onyonyo dị n'elu, ọkụ eletrik na-esi n'ike dị elu gaa n'ike dị ala (site n'aka ekpe gaa n'aka nri). A maara na ogwe magnetik na-eji iwu aka nri. Gbatịa aka nri gị, na-etinye ya ka aka nri wee chee ihu gị. Gbatịa mkpịsị aka ukwu gị ma gbatịa mkpịsị aka anọ ndị ọzọ gaa n'ihu ihu gị. Ntugharị nke mkpịsị aka anọ ahụ yiri ntụziaka nke ọkụ eletrik na-asọ na coil, ebe mkpịsị aka ukwu na-atụ aka na ogidi ugwu nke ubi magnetik. Mkpịsị aka ukwu na-atụ aka na B, yabụ B bụ ogidi ugwu nke magnetik na A bụ ogidi ndịda nke magnet.
Azịza ziri ezi bụ C.
9. Lee elektrọmagnet na magnet O - P dịka egosiri na foto a.
Ọ bụrụ na N na O na-achụpụ ibe ha, M – N – O – P bụ ogidi magnetik n'otu n'otu…
A. NGWA NGWA
B. SUUS
C. USSU
D. Mmiri ara ehi
Mkparịta ụka
Foto dị n'aka ekpe na-egosi otu esi eme magnet site n'ịgafe ọkụ eletrik site na ya. Ọkụ ahụ na-esi n'ike dị elu gaa na ike dị ala (site n'aka ekpe nke eriri ahụ gaa n'aka nri nke eriri ahụ). Enwere ike iji iwu aka nri chọpụta ntụziaka nke ubi magnet na ntụziaka nke ogwe magnet ahụ.
Gbatịa aka nri gị, tinye ya ka ọ bụrụ na aka nri gị na-eche ihu gị. Mee ka mkpịsị aka ukwu gị kwụsie ike ma gbadaa mkpịsị aka anọ ndị ọzọ gaa n'ihu n'ihu gị. Ụzọ mgbagọ nke mkpịsị aka anọ ahụ dị otu ihe ahụ dị ka ụzọ ọkụ eletrik si aga n'ime eriri ahụ, ebe mkpịsị aka ukwu na-atụ aka n'ogwe ugwu nke ubi magnet. Mkpịsị aka ukwu ahụ na-atụ aka n'ebe N dị ka N si bụrụ ogidi ugwu nke magnet ahụ, M bụkwa ogidi ndịda nke magnet ahụ. N na O na-achụpụ ibe ha, ya mere N na O nwere otu ogidi ahụ, ya bụ ogidi ugwu. Ọ bụrụ na O bụ ogidi ugwu, mgbe ahụ P bụ ogidi ndịda.
Dabere na nkọwa dị n'elu, enwere ike ikwubi na:
M = ogwe ndịda (S)
N = ogwe ugwu (U)
O = ogwe ugwu (N)
P = ogwe ndịda (S)
Azịza ziri ezi bụ B.
10. Lee foto a! Usoro nke ime magnet PQ ewezuga imepụta ihe ndọta na ogwe osisi bụ...
A. Ka ọ dịgodị, P bụ ogidi ndịda ebe Q bụ ogidi ugwu.
B. Ka ọ dịgodị, P bụ ogidi ugwu ebe Q bụ ogidi ndịda.
C. Edoziri ya, P bụ ogidi ugwu na Q bụ ogidi ndịda
D. Edoziri ya, P bụ ogidi ndịda na Q bụ ogidi ugwu
Mkparịta ụka
Foto dị n'elu na-egosi otu esi eme magnet site n'ịgafe ọkụ eletrik site na ya. Ígwè e ji magnet mee bụ ígwè. Ígwè bụ ihe magnet siri ike; mgbe e tinyere magnet, ọ na-aghọ magnet na-adịgide adịgide.
Dabere na onyonyo dị n'elu, ọkụ eletrik na-esi n'ike dị elu gaa n'ike dị ala (site n'aka ekpe nke eriri ahụ gaa n'aka nri nke eriri ahụ).
A na-eji iwu aka nri achọpụta mkpanaka magnet. Gbatịa aka nri gị ka aka gị wee chee ihu gị. Gbatịa mkpịsị aka ukwu gị ma gbatịa mkpịsị aka anọ ndị ọzọ gaa n'ihu gị. Nduzi nke mgbagọ nke mkpịsị aka anọ ahụ kwekọrọ na ntụziaka nke mmiri na-asọpụta na coil, ebe mkpịsị aka ukwu na-atụ aka na ogidi ugwu nke ubi magnet. Mkpịsị aka ukwu na-atụ aka na Q, yabụ Q na-anọchite anya ogidi ugwu nke magnet na P na-anọchite anya ogidi ndịda nke magnet.
Azịza ziri ezi bụ D.
11.
Ọ bụrụ na ejiri ígwè mee blọk AB, CD na EF, gịnị ga-eme...
A. E bụ ogidi ndịda ebe C bụ ogidi ugwu
B. B bụ ogidi ugwu ebe C bụ ogidi ndịda
Ogidi C. D na Ogidi ndịda na Ogidi ndịda F
D. A bụ ogidi ugwu ebe E bụ ogidi ugwu
Mkparịta ụka
Tụlee onyinyo nke ígwè PQ ejiri waya na-ebu ọkụ eletrik kpụọ. Foto a na-egosi usoro e si eme magnet site n'ịgafe ọkụ eletrik site na ihe ahụ. A na-eji iwu aka nri ekpebi ogwe magnet ndị na-esi na ya apụta. Debe aka nri gị kwụ ọtọ n'ihu ihu gị, na-eche ihu gị ihu. Gbaa mkpịsị aka anọ gị (ndeksi, etiti, mgbanaka, na obere mkpịsị aka). Ntugharị mkpịsị aka anọ gị dị otu ihe ahụ dị ka ntụziaka nke ọkụ eletrik dị na eriri waya, ntụziaka nke mkpịsị aka ukwu gị n'aka nri dịkwa otu ihe ahụ dị ka ntụziaka nke ubi magnet. Ubi magnet na-apụ mgbe niile site na ogwe ugwu wee banye na ogwe ndịda. Ya mere, Q bụ ogwe ugwu na P bụ ogwe ndịda.
Ọ bụrụ na ejiri mkpanaka ígwè EF, AB, CD dochie PQ ígwè, mgbe ahụ, a ga-eji E, A, C dochie ọnọdụ P, a ga-ejikwa F, B, D dochie ọnọdụ Q.
Q bụ ogidi ugwu ya mere F, B, D bụkwa ogidi ugwu.
P bụ ogidi ndịda ya mere E, A, C bụkwa ogidi ndịda.
Azịza ziri ezi bụ B.
12. Lezienụ anya n'otú e si eme magnet dịka egosiri na foto a!
Ngwụcha ígwè F, G, na I na-aghọ ogidi magnetik n'otu n'otu….
A. U, U, na S
B. S, S, na U
C. U, S, na S
D. S, U, na U
Mkparịta ụka
A na-eji iwu aka nri achọpụta ogidi magnetik nke ga-esi na ya pụta. Debe aka nri gị n'ihu ihu gị; azụ aka nri gị dị n'ọnọdụ kwụ ọtọ. ihu ihu gị. Gbaa mkpịsị aka anọ gị (ndeksi, etiti, mgbanaka, na obere mkpịsị aka). Ụzọ mkpịsị aka anọ gị si aga bụ otu ụzọ ọkụ eletrik dị na waya ahụ, ụzọ mkpịsị aka ukwu gị si aga n'aka ekpe dịkwa otu ụzọ nke ubi magnet. Oghere magnet na-apụ mgbe niile site na osisi ugwu wee banye na osisi ndịda. Ya mere, nsọtụ aka ekpe nke ígwè ahụ bụ osisi ugwu, nsọtụ aka nri bụ osisi ndịda.
Ọ bụrụ na e jiri mkpanaka ígwè EF, GH na IJ dochie ígwè ahụ, mgbe ahụ, a ga-eji E, G, I dochie ọnọdụ nke nsọtụ aka ekpe nke ígwè ahụ, a ga-ejikwa F, H, J dochie ọnọdụ nke nsọtụ aka nri nke ígwè ahụ.
Isi aka ekpe nke ígwè ahụ bụ ogwe ugwu ya mere E, G, M bụkwa ogwe ugwu.
Isi aka nri nke ígwè ahụ bụ ogwe ndịda ya mere F, H, J bụkwa ogwe ndịda.
F bụ ogidi ndịda, G bụ ogidi ugwu na I bụ ogidi ugwu.
Azịza ziri ezi bụ D.
13. Lee foto nrụpụta a!
Ogidi magnetik ziri ezi e kere mgbe a na-eme magnet bụ...
A. A bụ ogidi ndịda, C bụ ogidi ugwu, E bụkwa ogidi ugwu
B. B bụ ogidi ugwu, D bụ ogidi ugwu, E bụkwa ogidi ugwu
Ogidi C. B nke ugwu, Ogidi D nke ugwu, na Ogidi F nke ugwu
D. C bụ ogidi ugwu, B bụ ogidi ndịda, D bụkwa ogidi ndịda
Mkparịta ụka
Tinye iwu aka nri na ogwe ígwè PQ. Q bụ ogwe ugwu na P bụ ogwe ndịda. Ọ bụrụ na ejiri ogwe ígwè EF, AB, na CD dochie ígwè ahụ, mgbe ahụ, a ga-eji E, A, C dochie ọnọdụ P, a ga-ejikwa F, B, D dochie ọnọdụ Q.
P bụ ogidi ndịda ya mere E, A, C bụ ogidi ndịda.
Q bụ ogidi ugwu ya mere F, B, D bụkwa ogidi ugwu.
Azịza ziri ezi bụ C.
14. Lee foto ahụ!
Ogwe ígwè AB na-aghọ magnet mgbe PQ magnet ígwè metụrụ ya aka. Usoro ziri ezi maka ime PQ magnet ígwè bụ…
Mkparịta ụka
Mkpanaka ígwè AB, A = ogwe ugwu na B = ogwe ndịda.
Magnet ígwè PQ, Q = ogidi ndịda na P = ogidi ugwu
Foto a na-egosi usoro e si eme magnet site n'ịgafe ọkụ eletrik site na ya. A na-eji iwu aka nri ekpebi ogwe magnet ndị na-esi na ya apụta . Gbaa mkpịsị aka anọ gị (mkpịsị aka, mkpịsị aka etiti, mkpịsị aka mgbanaka, na obere mkpịsị aka). Nduzi mkpịsị aka anọ gị dị otu ihe ahụ dị ka ntụziaka nke ọkụ eletrik dị na eriri waya ahụ, ntụziaka nke mkpịsị aka ukwu gị dịkwa otu ihe ahụ dị ka ntụziaka nke ubi magnet. Ọdụ magnet na-apụ mgbe niile site na ogwe ugwu wee banye na ogwe ndịda. Ọdụ ugwu dị na P na ogwe ndịda dị na Q. Ọdụ eletrik na-asọ site na ike dị elu ruo na nke dị ala.
Azịza ziri ezi bụ B.
Isi mmalite ajụjụ:
Ajụjụ Ule Sayensị Mba nke Ụlọ Akwụkwọ Sekọndrị/Islamic Junior High School Sayensị
