Mienzaniso 8 yeMibvunzo pamusoro peKuchinja kweNyika
1. Zvinotevera inzira yekushandura mamiriro echinhu chinoburitsa kupisa, kureva kuti kana chinhu...
A. kuomesa nechando uye kupwanyika
B. chando uye gadzira chando
C. shanduka wonyunguduka
D. kunyungudutsa uye kuonda
Kukurukurirana
Shanduko mumamiriro ezvinhu anoburitsa kupisa ndeidzi:
1. Kunyungudika (gasi kuita mvura), semuenzaniso mhute yemvura inova dova mangwanani.
2. Kuomesa nechando (mvura kusvika yaoma), semuenzaniso mvura inova chando.
3. Kuumba simbi (gasi kusvika pachinhu chakaoma), semuenzaniso mhute inoshanduka kuita sinou.
Shanduko mumamiriro ezvinhu echinhu chinotora kupisa ndeidzi:
1. Kunyunguduka/kunyunguduka (kwakaoma kuita mvura), semuenzaniso chando chinonyunguduka
2. Kubuda kwemvura (mvura inoshanduka kuita gasi), semuenzaniso mvura inodziiswa yobva yava utsi
3. Sublimation (yakasimba kuita gasi), semuenzaniso shanduko dze camphor kuita gasi
Mhinduro chaiyo ndeiyi B.
2. Tarisa dhayagiramu!
Kuchinja kwemamiriro ezvinhu kunoburitsa kupisa zvichienderana nenhamba yemufananidzo...
A. 3 ne4
B. 2 ne4
C. 1 ne2
D. 1 ne3
Kukurukurirana
Shanduko mumamiriro ezvinhu anoburitsa kupisa ndeidzi:
1. Kunyungudika (gasi kuita mvura), semuenzaniso mhute yemvura inova dova mangwanani.
2. Kuomesa nechando (mvura kusvika yaoma), semuenzaniso mvura inova chando.
3. Kuumba simbi (gasi kusvika pachinhu chakaoma), semuenzaniso mhute inoshanduka kuita sinou.
Shanduko mumamiriro ezvinhu echinhu chinotora kupisa ndeidzi:
1. Kunyunguduka/kunyunguduka (kwakaoma kuita mvura), semuenzaniso chando chinonyunguduka
2. Kubuda kwemvura (mvura inoshanduka kuita gasi), semuenzaniso mvura inodziiswa yobva yava utsi
3. Sublimation (yakasimba kuita gasi), semuenzaniso shanduko dze camphor kuita gasi
Zvichibva pamufananidzo, nhamba 2 = kuomesa (mvura kusvika yaoma) uye nhamba 4 = kuomesa (gasi kusvika yaoma).
Mhinduro chaiyo ndeiyi B.
3. Mafuta ekokonati anogona kuomeswa nechando munguva yechando. Izvi zvinokonzerwa nekuti mafuta ekokonati...
A. muchando hazvipise
B. munguva yechando pane simba rekupisa rakawandisa
C. inogadzira kupisa kushoma saka inoomesa
D. inoburitsa kupisa kwakawanda saka inoomesa
Kukurukurirana
Mafuta ekokonati anenge ari emvura, nepo mafuta ekokonati akaomeswa nechando akaoma. Kuchinja kwechimiro chemafuta ekokonati kubva pamvura kuita akaoma kunokonzerwa nemafuta ekokonati achiburitsa kupisa kwakawanda mumhepo yakapoteredza. Kuburitswa uku kwekupisa kunoitika nekuda kwemusiyano wekupisa pakati pemafuta ekokonati nemhepo, uko mafuta ekokonati anenge akakwira kupfuura mhepo. Zvinonzwisisika kuti kupisa kunobva pazvinhu zvine tembiricha yakakwira kuenda kune zvine tembiricha yakaderera, uye kutamiswa kunomira kana zvinhu zvese zvasvika patembiricha yakaenzana.
Mhinduro chaiyo ndiD.
4. Tarisa mufananidzo wechinhu chinotevera!
Hunhu hwechokwadi hwezvinhu zviri mumufananidzo ndehwekuti...
Kukurukurirana
Ma ice cubes (chinhu 1) akaoma saka ane vhoriyamu yakagara uye chimiro chakamira.
Mvura (chinhu chechipiri) inoyerera saka ine huwandu hwakagadzika uye inochinja chimiro.
Mhepo (chinhu 3) iri muchimiro chegasi saka ine vhoriyamu inochinja uye chimiro chinochinja.
Mhinduro chaiyo ndiD.
5. Nyatsoteerera zvinhu zviri mumufananidzo unotevera!
Hunhu hwakakodzera hwezvinhu zvitatu zviri mumufananidzo uri pamusoro ndehwekuti...
Kukurukurirana
Chivharo chehuni (chinhu 1) chakasimba saka chine vhoriyamu yakasimbiswa uye chimiro chakasimbiswa.
Mafuta ekubikisa (chinhu chechipiri) anenge akaita semvura saka ane huwandu hwakaganhurirwa uye anochinja chimiro.
Makore (chinhu 3) ari muchimiro chegasi saka ane vhoriyamu inochinja uye chimiro chinochinja.
Mhinduro chaiyo ndiC.
6. Tarisa mufananidzo!
Chirevo chakarurama pamusoro pehunhu hwechinhu zvichienderana nemufananidzo chinoratidzwa na...
Kukurukurirana
Utsi (chinhu 1) huri muchimiro chegasi saka hune vhoriyamu inochinja uye chimiro chinochinja.
Mvura (chinhu chechipiri) inoyerera saka ine huwandu hwakagadzika uye inochinja chimiro.
Girazi (chinhu 3) rakasimba saka rine vhoriyamu isingachinji uye chimiro chisingachinji.
Mhinduro chaiyo ndiD.
7. (1) vhoriyamu yakatarwa
(2) kurongeka kwezvikamu zvakajairika
(3) simba rinokwezva riri pakati pezvikamu izvi rakasimba
(4) kuchinja kwechimiro
(5) daro riri pakati pezvikamu zvakafara zvakakwana
Zvichibva padata iri, hunhu hwezvinwiwa hunoratidzwa nenhamba...
A. (1), (2), uye (3)
B. (1), (4), uye (5)
C. (2), (3), uye (4)
D. (2), (4), uye (5)
Kukurukurirana
(1) zvinhu zvakasimba uye zvine mvura
(2) zvinhu zvakasimba
(3) zvinhu zvakasimba
(4) mvura
(5) mvura
Mhinduro chaiyo ndeiyi B.
8. 
Teerera girafu rinotevera
Aizi ine huremu hwemagiramu makumi mashanu inodziiswa kubva -5oC kusvika kumvura patembiricha ye60oC mvura. Kana kupisa kwechando = 80 cal/gram, kupisa kwechando = 0,5 cal/gram oC, kupisa kwemvura chaiyo = 1 cal/gram oC, saka huwandu hwekupisa hunodiwa panguva yekushanda kubva kuC kusvika kuD ndi….
A. 125 macalorie
B. 3.000 macalorie
C. 4.000 macalorie
D. 7.125 macalorie
Kukurukurirana
Zvinozivikanwa kuti:
Huwandu hwechando (m es) = 50 gramu
Kupisa kwechando (T es) = -5 oC
Kupisa kwechando (c es) = 0,5 cal/gram oC
Kupisa kwechando chakanyunguduka (L ice) = 80 cal/gram
Tembiricha yemvura (T mvura) = 60 oC
Kupisa kwemvura chaiyo (c mvura) = 1 cal/gram oC
Mubvunzo: Huwandu hwekupisa huri mukuita C kusvika D
Mhinduro:
Mukuita A kusvika B, tembiricha yechando inoshanduka kubva -5 oC inova 0 oC
Mukuita B kusvika C, chando chose chinoshanduka kuita mvura (chinhu chakasimba chinoshanduka kuita mvura). Mukuita uku, tembiricha haichinji.
Mukuita C kuenda kuD, tembiricha yemvura inoshanduka kubva pa0 oC inova 60 oC
Kupisa kunodiwa mukuita A kusvika B:
Q = mc ΔT
Q = (mes)(c)es)(0 – Tes)
Q = (50)(0,5)(0-(-5)) = (50)(0,5)(5) = 125 macalorie
Kupisa kunodiwa mukuita B kusvika C:
Q = m L
Q = mes Les
Q = (50)(80) = 4000 macalorie
Kupisa kunodiwa mukuita C kusvika D:
Q = mc ΔT
Q = (mmhepo)(c)mhepo)(T)mhepo - 0)
Q = (50)(1)(60-0) = (50)(1)(60) = 3000 macalorie
Kupisa kunodiwa mukuita A kusvika D:
Q = 125 + 4000 + 3000
Q = 7125 makoriori
Munyori anoverenga huwandu hwekupisa hunodiwa pakuita kwega kwega kuti akubatsire kunzwisisa kuti ungagadzirisa sei dambudziko rerudzi urwu. Mubvunzo ndewekupisa kunodiwa pakuita C kusvika D.
Mhinduro chaiyo ndeiyi B.
9. Tarisa mufananidzo wechinhu chinotevera!
Hunhu hwechokwadi hwezvinhu zviri mumufananidzo ndehwekuti...
Kukurukurirana
Ma ice cubes (chinhu 1) akaoma saka ane vhoriyamu yakagara uye chimiro chakamira.
Mvura (chinhu chechipiri) inoyerera saka ine huwandu hwakagadzika uye inochinja chimiro.
Mhepo (chinhu 3) iri muchimiro chegasi saka ine vhoriyamu inochinja uye chimiro chinochinja.
Mhinduro chaiyo ndiD.
10. Nyatsoteerera zvinhu zviri mumufananidzo unotevera!
Hunhu hwakakodzera hwezvinhu zvitatu zviri mumufananidzo uri pamusoro ndehwekuti...
Kukurukurirana
Chivharo chehuni (chinhu 1) chakasimba saka chine vhoriyamu yakasimbiswa uye chimiro chakasimbiswa.
Mafuta ekubikisa (chinhu chechipiri) anenge akaita semvura saka ane huwandu hwakaganhurirwa uye anochinja chimiro.
Makore (chinhu 3) ari muchimiro chegasi saka ane vhoriyamu inochinja uye chimiro chinochinja.
Mhinduro chaiyo ndiC.
11. Tarisa mufananidzo!
Chirevo chakarurama pamusoro pehunhu hwechinhu zvichienderana nemufananidzo chinoratidzwa na...
Kukurukurirana
Utsi (chinhu 1) huri muchimiro chegasi saka hune vhoriyamu inochinja uye chimiro chinochinja.
Mvura (chinhu chechipiri) inoyerera saka ine huwandu hwakagadzika uye inochinja chimiro.
Girazi (chinhu 3) rakasimba saka rine vhoriyamu isingachinji uye chimiro chisingachinji.
Mhinduro chaiyo ndiD.
12. Nyatsoteerera hunhu hwezvinhu zvinotevera!
(1) vhoriyamu yakatarwa
(2) kurongeka kwezvikamu zvakajairika
(3) simba rinokwezva riri pakati pezvikamu izvi rakasimba
(4) kuchinja kwechimiro
(5) daro riri pakati pezvikamu zvakafara zvakakwana
Zvichibva padata iri, hunhu hwezvinwiwa hunoratidzwa nenhamba...
A. (1), (2), uye (3)
B. (1), (4), uye (5)
C. (2), (3), uye (4)
D. (2), (4), uye (5)
Kukurukurirana
(1) zvinhu zvakasimba uye zvine mvura
(2) zvinhu zvakasimba
(3) zvinhu zvakasimba
(4) mvura
(5) mvura
Mhinduro chaiyo ndeiyi B.
Kwakabva mubvunzo:
Mibvunzo yeSainzi yebvunzo dzeSainzi dzeChikoro cheVadzidzi ve ...
