Mienzaniso mitatu yeMibvunzo yeAvhareji Yekumhanya
1. Mangwanani ega ega, Hadi anogara achimhanya-mhanya achitenderera nhandare ine 100 m x 400 m kagumi nembiri muawa imwe chete. Avhareji yekumhanya uye avhareji yekumhanya kwekufamba kwaHadi...
A. 0 km/awa uye 12 km/awa
B. 0 km/awa uye 6 km/awa
C. 6 km/awa uye 12 km/awa
D. 6 km/awa uye 6 km/awa
E. 12 km/awa uye 12 km/awa
Kukurukurirana
Zvinozivikanwa kuti:
Kureba kwemunda = mamita mazana mana
Upamhi hwemunda = mamita zana
Muganho wemunda = (2 x 400 metres) + (2 x 100 metres) = 800 metres + 200 metres = 1000 metres
Nhambwe yaHadi = 12 x 1000 metres = 12.000 metres = 12 kilometers
Yabvunzwa: Avhareji yekumhanya uye avhareji yekumhanya
Mhinduro:
Avhareji yekumhanya:
Hadi akatenderera nhandare kagumi nembiri, zvichireva kuti mushure mekumhanya, Hadi akadzokera panzvimbo yake yekutanga, saka kutama kwake kwaive zero. Sezvo kutama kwaive zero, avhareji yekumhanya yaive zero.
Avhareji yekumhanya:
Avhareji yekumhanya = daro rese rakafambwa / nguva yese = 12 km / awa imwe = 12 km/awa
Mhinduro chaiyo ndiA.
2. Girafu riri padivi rinoratidza hukama huripo pakati pedaro (s) nenguva (t) yechinhu chinofamba. Kana s iri muna m, uye t iri mumasekonzi, saka avhareji yekumhanya kwechinhu chacho...
A. 0,60 ms -1
B. 1,67 ms -1
C. 2,50 ms -1
D. 3,0 ms -1
E. 4,6 ms -1
Kukurukurirana
Avhareji yekumhanya = Nhambwe yese yafambwa / Nguva yese yawakagara
Avhareji yekumhanya = mamita gumi nemashanu / masekonzi matanhatu = mamita maviri nehafu pasekondi
Mhinduro chaiyo ndiC.
3. Chidimbu chinofamba kuchamhembe kubva panotangira (0,0) kuenda panotangira P (2,4) mumasekonzi matatu. Chidimbu chinobva chatendeukira kumabvazuva kwemasekonzi maviri kusvika chasvika panotangira Q (10,10). Avhareji yekumhanya apo chidimbu chinofamba kubva kuP kuenda kuQ yakaenzana ne….
A. 2 ms-1
B. 5 ms -1
C. 7 ms -1
D. 10 ms -1
E. 12 ms -1
Kukurukurirana
Kutamiswa kwePQ:
Avhareji yekumhanya:
Mhinduro chaiyo ndeiyi B.
4. Kana avhareji yekumhanya kwechinhu iri zero, saka...
A. zvinhu zvinofamba nekumhanya kwakasimba
B. daro rakafambwa rakaenzana ne zero
C. zvinhu zvinofamba-famba zvichidzokera shure
D. kuchinjika kwechinhu kwakaenzana ne zero
E. avhareji yekumhanya kwechinhu yakaenzana ne zero
Kukurukurirana
Fomura yekumhanya kweavhareji = kufamba kwese / nguva yese
Kana avhareji yekumhanya kwechinhu iri zero, saka kusuduruka kwechinhu i zero.
Mhinduro chaiyo ndiD.
Kwakabva mubvunzo:
Mibvunzo yeNational Examination Physics yeChikoro Chesekondari/Chikoro Chepamusoro Chebasa
