DE VAT LY 9 KTHKII TVINH PHUC 2014

<span class='text_page_counter'>(1)</span>sa GD&DT l,. ViNH PHUC. ,. DE CHINH THUC. pHAN I: TRAc NGHIEM. DE KIEM TRA HQC KI II, NAM HQC 2013- 2014 Mon: Vat Iy - lap 9 Thc)'igian lam bai: 60 phi:t (kh6ng kd thai gian phat dJ). (2,0 iliim). Ch(Jn thu' cai dung tru'o'c diu tra fo'i dung va viit vao hai thi.. Call l:\BO ph~n mio sau day Clla m~t dong vai tro nhu v~t kinh Clla may anh? 1}. Gi~c m~c. B. Con nguai. cr. The thuy tinh. D. Mang luai. Call 2: :MOtkinh hlp co ghi Sx. Tieu qI clla kinh la A. f= 2,5cm. B. f= 3, 125cm O. f= Scm. D. f= 200 cm. Call 3: IICo,hai duang day t~i di~n tai di cling m,Otcong ,suftt di~n vai day dfin cling t,i~t di~n, lam bang cling mOt chat, duang day thu nhat co chieu dai 1OOkmva hi~u di~n the a hai d~u ~ay la 100kV, dUO'ngd,ay thu hai co chi~u dai 200km va hi~u di~n th~ a hai d~u I. day la 200k V. So sanh cong sua! hao phi vi toa nhi~t ,q>1 va ,0/] clla hai duang day. A l,q>} = ,q>2 B. ,q>} = 2,q>2 C. ,q>} = 4,0/] D. .9'1 = ~.9'2 . \, , 2 Call 4: MOt nguai mac t~t c~n thi phai deo thau kinh phan ky co tieu ClJ50cm. Hoi khi khong dJo kinh thi nguai do nhin r5 dugc v~t cach m~t xa nhat la bao nhieu? A. 50cm. B. 75cm. C. 25cm. D. 15cm pHAN II: TU LuAN (8,0diim) Call 5: \ , , , ?, a) ~eu tac d\ln~ cua may bien the, viet C0t;g th~c the, hi~n moi quan h~ gifra hi~u di~n the ~~t van hai dau cac cuOn day clla may bien the va so vong day clla cac cuOn day tuang ung? b) 1- Mu6n truy~n tai mOt cong suftt 20000W tren duang day dfin di~n co di~n tra t6ng cOng!400 thi cong suftt hao phi tren duang day la bao nhieu? Cho bi~t hi~u di~n th~ t~i hai d~J duang day truy~n tai la 10000V. , - \ N~u gifr !1guyen cong suftt truy~n tai l,a20000 W va tang hi~u di~n th~ t~i hai dau duang day truyen tai len 20000V thi cong suat hao phi la bao nhieu ? Call 6: \ D~t! v~t AB vuong goc vai tf\lC chinh cua thftu kinh co tieu ClJ f = Scm, diem A n5m tren t~\lCchinh va cach quang tam 0 mOt khoang OA = 16 cm, qua thftu kinh cho anh A'B' dung chi~u va nho han AB. I ' a) A!'B' la anh th~t hay anh ao? Vi sao? Do la thau kinh gi? DlJng anh A'B' clla AB (kh6nil can trinh bay cach d~ng). b) B~?g ki~n thuc hinh hQc, hay tinh khoang cach til anh A'B' d~n thftu kinh. c) Biet V?t AB cao ,?9 cm hay tinh dO cao Clla anh A'B'. I, , d) Cho thau kinh co dinh, de dO cao clla anh A'B' Ian gap doi thi phai di chuyen vat AB di b1aonhieu cm va theo chi~u nao? . ?. .. \. ,. I \ I. ........................ He! . Can be)coi thi kh6ng giai thich gi them.

<span class='text_page_counter'>(2)</span> I. ,. sa GD. -. \. ,. HUONG DAN CHAM DE KIEM TRA HQC Ki II NAM HQC 2013- 2014 MOD: V~t Iy - l6'p 9 , \ , . h a 5 d'~ lem, em, ung e 0 , oleau, d' PhaD Tric Dghi~m (2,0 tlr ~ M" 4 Cau I 2 3 & DT VINH PHUC. II. Bap an Phan II. TlJ lu~n (8,0 diem). \ Noi dun Cau 5:'1. C. B. B. A. kien thu'c can dat. a. May'\bien the 18.thiet bi dung de bien doi hi~u di~n the ella dong di~n xoay ehieu. Diem 3,0 diem 1,0. --~~~~-~-J~:~;---u~---:';;,----------'-------------------------------------------------.-----------------------------------------------------------..----------~-:~--..----. -~,--~~~~;~:~~-~:~--~-~~~--~:-~--~-t~-:-~~:-~~~~~~\. Uz. nz. --.--------------r---------------------;-----------;--------------------------;----------. ... ------------------:----------;-----------------------------_._------------------_._--.--.. e, Tang ri~u di~n the len gap hai, eong suat hao phi giam 4 Ian: P,IP. = 40 W. 0,5. Cau 6: \. 5,0 diem. I. •. a) ~ A'B( 18.anh ao dUQ'et~o boi thau kinh phan ki vi TKPK luon eho anh ao eung ehieu va nh6 hon vat.. 1,0. ------~-D~.~~--~~h-A;i3-;-:------------------------------------------.-.-.--------------------------.-...-------------------------..------------------ ...-----------I. '. \. 1,0 A. \. F. \. :~~~~~~r_~_~~~~~:_:~~I~~;:-_-_:::~~~_: +/'"FOI ~\M'A'B'~. 10 A'B'. =. OF A'F. =. OF OF-OA'. ~. ------------------_.---.----------------------------------------------------_.-----------------_. va c1). AB A'B'. =. OF OF-OA'. (2). 0,5. ..-.~--------------_...-.--------------_ ....------------_ ..._-----------_ ....._-----. .!i (em). ~~-;i:~.=:T ....----:.-~~.:-:~:~:.~~.~-=~~.=~: ..~T~~:: ..-.. TiT (1). ~OA'. \. =. 0,5. 3. -.-._--.-.~5-..-... --dTfi;;i;--d~-di~h~h~yJ~.~-;ji/iB--------------------------------------------------------------------------..------------------------------------------------. ~~::~~j~,~~~~~::~~: ..t:~_6 ~~~~:.~;;~=~:} .._.._._.__.~.__ ::.. ~=:-~;..---~--;:~1-~~~--~~-;-~~-~;;-;' ;~;.~;~;-~~-:~-;-:::~-.::~:~--~~;-:~:--~~;-~;~~.:.~::~ :~ O'A_I, M-t ~ kl'lac:-I 0.:4,. =. 0F , OF - OA1. = -3 ~ 2. OA, ,8= -em 3. ~ 0:.4 ,= 4em. Vay-'p'hai die~ ehul.:~n vat AB lai gftn th~u kfnh mot doan f = 16 - 4 = 12em. khae nhlmg vah dung vd ban ehdt vQt If! thi van eho ddm t6i da theo phdn ph6i ddm nhu tren . - Phd~. trile nghi?m niu HS ehQn nhidu hem 1 dap an thi khOng eho ddm. \ \. nit. .. 0,5.

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