1. Mapoinzi A naB ari 4 m uye 9 m kubva panobva ruzha, zvichiteerana. Kana I A naI B dziri simba reruzha pamapoinzi A naB, zvichiteerana , saka I A : I B ndiye…
A. 3: 2
B. 4: 9
C. 9 : 4
D. 16: 81
Chikamu 81: 16
Kukurukurirana
1. Muoni ari mumakwikwi emotokari anonzwa ruzha rwakasiyana (ruzha rwemotokari) sezvo motokari dzichisvika uye dzichidzokera shure. Mota yemujaho yemazuva ose inoburitsa ruzha pa800 Hz. Kana kumhanya kweruzha mumhepo kuri 340 m/s,-1 uye kumhanya kwemotokari ndeye 20 ms-1, ipapo kanganiko kanonzwika kana mota yasvika….
A. 805 Hz
B. 810 Hz
C. 815 Hz
D. 850 Hz
E. 875 Hz
Kukurukurirana
1.SBara rerabha rakaita sebhora rine huremu hwemagiramu makumi mana rinopfurwa rakanamira kumadziro sezvakaratidzwa mumufananidzo. Kana bhora rikapfurwa nekumhanya kwakafanana, saka kuchinja kwesimba rebhora kunoratidza
dalah…
A. 2 Ns
B. 3 Ns
C. 4 Ns
D. 5 Ns
E. 6 Ns
Kukurukurirana
Mienzaniso gumi nemana yemibvunzo yeDoppler Effect
1. Kubva muchirevo chinotevera:
(1) P inosvika S iyo isingachinji
(2) S inosvika P iyo isingachinji
(3) P naS vanoswedera pedyo
(4) S naP zvinofamba nekumhanya kwakafanana
Kana P (muteereri) akanzwa ruzha nefrequency yakakwira kupfuura frequency inoburitswa naS (tsime), saka chirevo chakarurama ndechekuti...
A. (1), (2) uye (3) chete
B. (1), (2), (3) uye (4)
C. (1) uye (3) chete
D. (1) uye (4) chete
E. (2) uye (4) chete
Kukurukurirana
1. Zvinhu zviviri A (3 kg) naB (5 kg) zvinofamba nenzira imwe chete nekumhanya kwe8 ms -1 uye 4 ms -1 zvichiteerana . Kana chinhu A chikarova chinhu B nekusimba kwakakwana, saka kumhanya kwechinhu chimwe nechimwe mushure mekuroverana kuno...
A. 3 ms –1 uye 7 ms –1
B. 6 ms –1 uye 10 ms –1
C. 4,25 ms –1 uye 10 ms –1
D. 5,5 ms –1 uye 5,5 ms –1
E. 8 ms –1 uye 4 ms –1
Kukurukurirana
1. Bhora rine huremu hwe 0,5 kg rinodonha zvakasununguka kubva pakukwirira kwe h 1 = 7,2 m pamusoro pepasi uye rinosvetuka kusvika pakukwirira kwe h 2 = 3,2 m. Kana kukurumidza kunokonzerwa negiravhiti kuri 10 ms -2 , kupindira kunoshanda pabhora ndiko...
A. 2,0 Ns
B. 3,0 Ns
C. 10 Ns
D. 40 Ns
E. 80 Ns
Kukurukurirana
1. Tarisa mufananidzo unotevera wekusuduruka kwebhuroko! Ngatitii g = 10 m/s 2 . Kana coefficient yekinetic friction pakati pebhuroko nepasi iri μ k = 0,5, saka kukosha kwekusuduruka kwechinhu kuri ….
A. 5,00 m
B. 4,25 m
C. 3,00 m
D. 2,50 m
E. 2,00 m
Kukurukurirana
1. Majoules esimba 4.900 anoshandiswa kusimudza chinhu chinorema 50 kg chakamira. Chinhu chacho chinokwira kusvika pakukwirira kwe … (g = 9,8 ms -2 )
A. 0,1 m
B. 10 m
C. 98 m
D. 245 m
E. 960 m
Kukurukurirana
1. Simba risingaperi re60 N rinoshanda kwemasekonzi gumi nemaviri pachinhu chine huremu hwe10 kg. Chinhu chacho
ine kumhanya kwekutanga kwe6 m/sec munzira imwecheteyo nesimba.
(1) Basa rakaitwa pachinhu ichi i30.240 joules
(2) Simba rekupedzisira rekinetic rechinhu ichi i30.240 joules.
(3) Simba rinogadzirwa i2.520 watts
(4) Kuwedzera kwesimba rekufamba kwechinhu ichi i180 joules.
Mhinduro chaiyo ndeyekuti…
1. Chiyero chehuwandu hwemapuraneti A naB chiri 2:3 ukuwo chiyero che radii yemapuraneti A naB chiri 1:2. Kana huremu hwechinhu chiri papuraneti A huri w, saka huremu hwechinhu chiri papuraneti B ndi….
A. 3/8 w
B. 3/4 w
C. 1/2 w
D. 4/3 w
E. 8/3 w
Kukurukurirana