Hurukuro gumi neshanu pamusoro peMafungu Eruzha
1. Chirevo chakarurama maererano nemutemo wekufungisisa kwakanaka ndeche...
A. Ruzha rwechiitiko, mutsetse wakajairika, uye ruzha rwakaratidzwa zviri muchikamu chimwe chete, kona yechiitiko idiki pane kona yekuratidzira
B. ruzha rwechiitiko, mutsetse wakajairika, uye ruzha rwunoratidzwa zviri pamutsetse mumwe chete, kona yechiitiko yakafanana nekona yekuratidzira
C. Ruzha rwechiitiko, mutsetse wakajairika, uye ruzha rwakaratidzwa zviri muchikamu chimwe chete, kona yechiitiko yakafanana nekona yekuratidzira
D. Ruzha rwechiitiko, mutsetse wakajairika, uye ruzha rwakaratidzwa zviri muchikamu chimwe chete, kona yechiitiko haina kufanana nekona yekuratidzira
Kukurukurirana
Ruzha nechiedza mafungu, chimwe chezvinhu zvinoonekwa ndechekuti anoonekwa nechiedza. Mutemo wekufungisisa unoti:
1. Mafungu echiitiko, mafungu anoratidzwa uye mutsetse wakajairika zviri muchikamu chimwe chete.
2. Kona yechiitiko yakafanana nekona yekufungisisa
Mhinduro chaiyo ndiC.
2. Mukati mebhokisi remutauri kana mutauri unoshanda unowanzo putirwa negirazi kana furo. Izvi zvinoitirwa...
A. ruzha runowedzera kurira
B. hapana kudedera kunoitika
C. hapana kurira kunoitika
D. hapana kurira kunoitika
Kukurukurirana
Makushe egirazi kana furo rinonamira, saka rinoshanda kudzikamisa kudedera kunokonzerwa nemafungu eruzha, nokudaro richiaderedza nekubvisa. Kana kudedera kukaderedzwa uye kukabviswa, ruzha runodererawo uye runonyangarika. Kana rusina kunyoroveswa, mafungu eruzha anogona kuratidzwa kubva pamadziro esipika, zvichikonzera manzwi. Manzwi anonzwika panguva imwe chete neruzha rwepakutanga, nepo manzwi anonzwika mushure meruzha rwepakutanga.
Uswa hwegirazi hunoshandiswawo senzira yekudzikamisa ruzha mumastudio emimhanzi nekufukidza madziro emukati mestudio yemimhanzi neuswa hwegirazi.
Mhinduro chaiyo ndiD.
3. Ruzha harugone kufamba nepakati…
A. zvinhu zvakasimba
B. mvura
C. gasi
D. muchina wekuchenesa mweya
Kukurukurirana
Mafungu eruzha anoda chinhu chinofambisa ruzha kuti chifambe kubva panzvimbo imwe kuenda kune imwe. Zvinhu zvinofambisa ruzha zvinogona kufamba nepakati pazvo zvinhu zvakasimba, mvura, uye magasi. Ruzha harugone kufamba nepaburi remhepo nekuti hapana chinhu chinofambisa ruzha kuti chifambe nepakati paro.
Mhinduro chaiyo ndiD.
4. Manzwi eaudiosonic ane huwandu hwe...
A. 10 Hz - 20 Hz
B. 20 Hz - 40 Hz
C. 20 kHz – 40 kHz
D. 20 Hz – 20 kHz
Kukurukurirana
Mafungu eruzha eaudiosonic mafungu eruzha anogona kunzwiwa nevanhu uye ane frequency iri pakati pe20 Hertz kusvika 20.000 Hertz.
Kunze kweaudiosonics, kune mazwi ekuti infrasonics uye ultrasonics.
Mafungu eruzha eInfrasonic mafungu eruzha ane frequency iri pasi pe20 Hertz, uko ruzha urwu runogona kunzwiwa nemhuka dzakadai semakiriketi, nyoka, imbwa, uye shark.
Mafungu eruzha eUltrasonic mafungu eruzha ane frequency inodarika 20.000 Hertz, uko ruzha urwu runogona kunzwiwa nemhuka dzakadai semapopoma.
Mhinduro chaiyo ndiD.
5. Pazvinhu zvinotevera, mafungu eruzha anofamba nekukurumidza mu...
A. aruminiyamu
B. mhepo
C. gasi rekabhoni
D. doro
Kukurukurirana
Mafungu eruzha ndiwo mafungu eruzha anopararira kuburikidza nezvinhu, kungava gasi, mvura, kana chakasimba. Nekuti anopararira kuburikidza nechinhu chinofambisa ruzha, kumhanya kwemafungu eruzha kunoenderana nehunhu hwechinhu chinofambisa ruzha chaanopfuura nacho. Kumhanya kwemafungu eruzha kunoenderana zvakananga ne elastic modulus yechinhu chinofambisa ruzha uye zvinoenderana ne density yechinhu chinofambisa ruzha. Izvi zvinoreva kuti elastic modulus yechinhu chinofambisa ruzha yakakura, kumhanya kwemafungu eruzha kukuru, uye density yechinhu chinofambisa ruzha yakaderera, kumhanya kwemafungu eruzha kukuru.
Kuwanda kwezvinhu kubva pakukura kusvika padiki kunosanganisira aruminiyamu (yakasimba), doro (mvura), gasi rekabhoni (gasi) nemhepo (gasi). Mhepo ine huwandu hushoma saka kumhanya kwekupararira kwemafungu eruzha mumhepo kwakakura.
Mhinduro chaiyo ndeiyi B.
6. Manzwi ane manzwi akajairwa anonzi...
A. kugomera
B. mazino emazino
C. matauriro
D. nzwiro
Kukurukurirana
Manzwi ane mafrequency akajairwa anonzi matoni.
Mhinduro chaiyo ndiC.
7. Tono anodanidzira zvine simba pamberi pegomo refu. Masekondi mashoma gare gare, inzwi rake rinonzwika richinzwika, ruzha rwezwi rake rwunoratidzwa. Kana Tono akarekodha nguva iri pakati perwiyo nekudanidzira kwake, uye achiziva kumhanya kweruzha mumhepo panguva iyoyo, anogona kushandisa ruzha rwunoratidzwa kuti aone...
A. kukwirira kwegomo riri pamusoro pegungwa
B. daro regomo kubva pakanga pashevedzera Tono
C. nzvimbo yerusvingo rwemawere iyo Tono ari kuenda kwairi
D. hunyoro hwakatenderedza dombo
Kukurukurirana
Ruzha chero rupi zvarwo kana ruzha rwunofamba mumhepo, saka kumhanya kweruzha kwakafanana nekumhanya kwekufamba kwemhepo. Kana nguva iri pakati pe echo nekuchema ichizivikanwa, ipapo nguva (t) yekuti ruzha rufambe kubva kwakabva Tono akashevedzera kuenda kudombo inozivikanwa. Kana kumhanya kweruzha mumhepo kuchizivikanwa (v), ipapo kumhanya kweruzha (v) kunozivikanwa. Saka, uchishandisa fomura yekumhanya (v) = daro (s) / nguva (t), daro riri pakati pedombo nekwakashevedzera Tono rinozivikanwa.
Mhinduro chaiyo ndeiyi B.
8. Teererai chirevo chinotevera!
1. Kuyera kudzika kwegungwa
2. Kuwedzera ruzha rwemanzwi
3. Kuyera daro riri pakati penzvimbo mbiri
4. Wedzera amplitude yeruzha
Mabhenefiti eruzha rwunoratidzwa anogona kutsanangurwa munhamba yechirevo…..
A. 1 ne2
B. 1 ne3
C. 2 ne3
D. 3 ne4
Kukurukurirana
Kana kumhanya kweruzha (v) mumhepo kuchizivikanwa, saka nekuziva nguva (t) pakati peruzha neruzha rwunoratidzwa, daro (s) riri pakati penzvimbo mbiri rinogona kuverengwa, semuenzaniso daro riri pakati pegungwa negungwa (kudzika kwegungwa).
Mhinduro chaiyo ndeiyi B.
9. 
Tarisa mufananidzo! Muchiitiko ichi, Ali anogona kunzwa izwi raAni nekuti...
A. Ruzha runofamba nemuchina unodzima mhepo
B. Ruzha runofamba nepakati peshinda
C. Ruzha harugone kufamba nemhepo
D. Kuwanda kwemhepo pasi pe20 Hz
Kukurukurirana
Ali anogona kunzwa inzwi raAni nekuti ruzha runofamba nepakati peshinda.
Mhinduro chaiyo ndeiyi B.
10. Bhero remagetsi rinoridzwa mukati mesirinda yegirazi yakavharwa. Zvadaro, mweya unobva musirinda unoburitswa zvishoma nezvishoma kusvika wapera zvachose. Ruzha rwebhero runowedzera kuderera, uye pakupedzisira, harunzwiki zvachose. Izvi zvinoitika nekuti...
A. Ruzha runopararira runoda nzira yekutaura nayo
B. Ruzha runodzikiswa negirazi
C. Ruzha runonzwika negirazi
D. Kuwanda kwekunzwika kwebhero kuri pasi pe20 Hz
Kukurukurirana
Ruzha runoda nzira yekufambisa kubva panzvimbo imwe kuenda kune imwe. Nzira iyo ruzha runogona kufamba nayo inogona kuva zvinhu zvakasimba, mvura, kana magasi.
Kana mweya ukapombwa zvachose, hapana mweya uri musirindiri yakavharwa. Kana pasina mweya, ruzha harugone kubuda musirindiri yakavharwa ine bhero remagetsi iro riri iro rinoburitsa ruzha.
Mhinduro chaiyo ndiA.
11. Ruzha runopfurwa mugungwa uye ruzha rwunoonekwa runogamuchirwa mushure memasekonzi mashanu. Kana kumhanya kweruzha mugungwa kuri 1500 m/s, saka kudzika kwegungwa kunoyerwa ndiko...
A. 7.500 m
B. 3.750 m
C. 300 m
D. 150 m
Kukurukurirana
Zvinozivikanwa kuti:
Nguva yerwendo rwekutenderera = masekondi mashanu
Nguva pakati pekuenda kana kudzoka (t) = 5 / 2 = 2,5 masekondi
Kumhanya kweruzha mugungwa (v) = 1500 m/s
Akabvunzwa: Kudzika kwegungwa kwakayerwa
Mhinduro:
Fomura yekumhanya kana daro:
v = s / t kana s = vt
Kudzika kwegungwa ndekwekuti:
s = vt = (1500 m/s)(2,5 s) = 3750 metres
Mhinduro chaiyo ndeiyi B.
12. Chinhu chinobva ruzha chinofamba nekumhanya kwe2.500 m/s, kana frequency yacho iri 500 hertz, saka wavelength yeruzha...
A. 0,2 mamita
B. 5 mamita
C. 100 mamita
D. 500 mamita
Kukurukurirana
Zvinozivikanwa kuti:
Kumhanya kwekwakabva ruzha (v) = 2500 m/s
Ruzha rwekumhanya (f) = 500 Hertz
Mubvunzo: Kureba kweruzha (λ)
Mhinduro:
Fomura yekumhanya kwekuparadzira mafungu:
v = f λ
2500 = (500)(λ)
λ = 2500 / 500
λ = mamita mashanu
Mhinduro chaiyo ndeiyi B.
13. Mumwe munhu anorova gong pedyo negomo. Mushure memasekonzi 1,2, ruzha runonzwika ruchidzoka. Kana kumhanya kweruzha mumhepo kuri 340 m/s, daro riri pakati pegomo negong beater….
A. 170 m
B. 204 m
C. 340 m
D. 408 m
Kukurukurirana
Zvinozivikanwa kuti:
Nguva (t) yekuti ruzha rufambe kubva pagong beater kuenda kudombo uye wozodzokera kugong beater = 1,2 seconds
Nguva (t) yekuti ruzha rufambe kubva pagong beater kuenda kudombo = ½ (1,2 seconds) = 0,6 seconds
Kumhanya kweruzha mumhepo (v) = 340 m/s
Mubvunzo: Chinhambwe chiri pakati pegomo negong beater
Mhinduro:
Fomura yekumhanya kwekupararira kwenzwi:
v = s / t kana
s = vt
Tsananguro yefomura: v = kumhanya kweruzha, s = daro rakafambwa, t = nguva yekufamba
Daro riri pakati pegomo negong beater nderekuti:
s = vt
s = (340 m/s)(0,6 s)
s = mamita zana
Mhinduro chaiyo ndeiyi B.
14. Mudzidzi akamira pedyo negomo riri kure nemamita 850, obva adanidzira. Ruzha rwekudanidzira rwunonzwika mushure memasekonzi mashanu. Kumhanya kweruzha mudenga kuri….
A. 350 m/s
B. 340 m/s
C. 335 m/s
D. 330 m/s
Kukurukurirana
Zvinozivikanwa kuti:
Kureba (s) kwemudzidzi kubva padombo = 850 metres
Nguva (t) yekuti ruzha rufambe kubva kumudzidzi kuenda kudombo uye rwozodzokera kumudzidzi = masekondi mashanu
Nguva (t) yekuti ruzha rufambe kubva kumudzidzi kuenda kudombo = ½ (masekonzi mashanu) = 2,5 masekondi
Mubvunzo: Kumhanya kweruzha mumhepo
Mhinduro:
Kumhanya kweruzha mumhepo:
v = s/t
v = mamita 850 / masekondi 2,5
v = 340 m/s
Mhinduro chaiyo ndeiyi B.
15. Ngarava inoburitsa mafungu eruzha pasi pegungwa. Masekondi maviri gare gare, mafungu eruzha anoonekwa kubva pasi pegungwa. Kana kumhanya kweruzha mumvura yegungwa kuri 1400 m/s, kudzika kwegungwa panzvimbo iyoyo….
A. 700 mamita
B. 1.050 mamita
C. 1.400 mamita
D. 1.800 mamita
Kukurukurirana
Zvinozivikanwa kuti:
Kumhanya kweruzha (v) mumvura yegungwa = 1400 m/s
Nguva (t) yekuti ruzha rufambe kubva muchikepe kuenda pasi pegungwa uye rwozodzokera kuchikepe = masekondi maviri
Nguva (t) yekuti ruzha rufambe kubva muchikepe kuenda pasi pegungwa = ½ (masekondi maviri) = sekondi imwe chete
Mubvunzo: Kumhanya kweruzha mumhepo
Mhinduro:
Kudzika kwegungwa kana daro rechikepe kusvika pasi pegungwa:
s = vt
s = (1400 m/s)(1 s)
s = mamita zana
Mhinduro chaiyo ndiC.
Kwakabva mubvunzo:
Mibvunzo yeSainzi yebvunzo dzeSainzi dzeChikoro cheVadzidzi ve ...
