7 Muenzaniso weMatambudziko eKuwanda kweMafuta Kunyura Kuyangarara
1. Tarisa tafura yezvinhu zvakati wandei zvakasimba pazasi!
Zvinhu zvina zvakanyorwa mutafura iri pamusoro zvinoiswa mumudziyo wakazadzwa nemvura (huwandu hwemvura = 1,0 g/cm3Mufananidzo unoratidza nemazvo nzvimbo yezvinhu mumvura ndewekuti...
Kukurukurirana
Kana kuwanda chinhu > kuwanda kwemvura ipapo chinhu chinonyura.
Kana huwandu hwechinhu = huwandu hwemvura, chinhu chacho chichayangarara.
Kana huwandu hwechinhu < huwandu hwemvura saka zvinhu zvinoyangarara.
Zvinhu 3 ne4 zvine huwandu hwakakura kupfuura huwandu hwemvura saka zvinonyura. Chinhu 1 nechinhu 2 zvine huwandu hudiki pane huwandu hwemvura saka zvinoyangarara.
Mhinduro chaiyo ndiD.
2. Tarisa tafura yehuwandu hwezvinhu zvakasiyana-siyana zvine maumbirwo akasiyana pazasi!
Zvichibva padata iri, kana zvinhu zvina zvikaiswa mumudziyo, mufananidzo chaiwo ndewekuti...
Kukurukurirana
Kuwanda kwechinhu 1 (mvura) kwakakura kupfuura kuwanda kwechinhu 2 (mvura), saka chinhu 1 chiri pasi uye chinhu 2 chiri pamusoro. Semuenzaniso, mvura ine kuwanda kwakakura kupfuura mafuta. Kana mafuta akadururwa mumudziyo wakazadzwa nemvura, mafuta acho anoyangarara pamusoro pemvura.
Kuwanda kwechinhu 3 (chakasimba) kudiki pane kuwanda kwechinhu 1 (mvura) uye kwakakura kupfuura kuwanda kwechinhu 2 (mvura), saka chinhu 3 chinonyura muchinhu 2 uye chinoyangarara muchinhu 1. Kuwanda kwechinhu 4 (chakasimba) kwakakura kupfuura kuwanda kwechinhu 1 uye kuwanda kwechinhu 2 zvekuti chinhu 2 chinonyura muzvinhu 1 ne2.
Mhinduro chaiyo ndiA.
3. Tarisa tafura yezvinhu zvinotevera!
Nzvimbo chaiyo kana chinhu chakaoma chakaiswa mumvura inoratidzwa mumufananidzo...
Kukurukurirana
Mvura yegungwa nepeturu zvinwiwa, nepo girazi nechando zviine simba. Kuwanda kwemvura yegungwa kwakakura kupfuura kwepeturu, saka mvura yegungwa iri pasi uye peturu iri pamusoro.
Kuwanda kwechando kwakakura kupfuura kuwanda kwepeturu uye kushoma pane kuwanda kwemvura yegungwa zvekuti chando chinonyura mupeturu choyangarara mumvura yegungwa.
Kuwanda kwegirazi kwakakura kupfuura kuwanda kwepeturu nemvura yegungwa zvekuti girazi rinonyura mupeturu nemvura yegungwa.
Mhinduro chaiyo ndiD.
4. Zvinhu zviviri A naB zvakaenzana zvinonyudzwa mumvura. Chinhu A chinoyangarara ukuwo chinhu B chichiyangarara. Chirevo chakarurama nezvechiitiko ichi ndeche…
(1) Kuwanda kwechinhu B kwakakura kupfuura kuwanda kwechinhu A
(2) Simba rinopfungaira rinogamuchirwa nechinhu B rakakura kupfuura huremu hwaro.
(3) Simba rinoita kuti zvinhu zvose zvifambe rinoenderana nekudzika kwemvura
(4) Zvinhu zvose zviri zviviri zvinosangana nesimba rakafanana rekufema
Kukurukurirana
(1) Chinhu A chinoyangarara ukuwo chinhu B chichiyangarara, saka huwandu hwechinhu A hwakakura kupfuura huwandu hwechinhu B
(2) Chirevo chechipiri ndechechokwadi. Chinhu chinoyangarara kana simba rayo guruva riri pamusoro pesimba rayo rinokwevera pasi
(3) Chirevo chechitatu hachina kururama. Kusimba kwemvura hakutsamiri pakudzika kwemvura, asi kunoenderana nekusiyana kwekudzika kwemvura pakati penzvimbo dzepamusoro nedzepasi dzechinhu chakanyudzwa mumvura.
(4) Chirevo chechina hachina kururama. Zvinhu zviviri izvi zvinosangana nemasimba akasiyana ekunyorova, zvichienderana nehuwandu hwechinhu chakanyudzwa mumvura.
5. Chidimbu chechando chine huremu hwe 0,90 g/cm 3 chinoiswa mumafuta ane huremu hwe 0,80 g/cm 3. Zviratidzo zvinoonekwa ndeizvi…
A. chando chinoyangarara
B. 1/9 yechando yakanyudzwa mumvura
C. ½ chikamu chemvura inonyura muchando
D. 8/9 yechando yakanyudzwa mumvura
E. chando chinonyura zvachose
Kukurukurirana
Kuwanda kwechando kwakakura kupfuura kuwanda kwemafuta saka chando chinonyura zvachose.
Mhinduro chaiyo ndiE.
6. Zvinhu A na B zviri mumudziyo une mvura sezvakaratidzwa mumufananidzo. Kuwanda kwemvura, zvinhu A na B…
Kukurukurirana
Chinhu A chinoyangarara, huwandu hwechinhu A < huwandu hwemvura.
Kunyura kwechinhu B, huwandu hwechinhu B > huwandu hwemvura.
Mhinduro chaiyo ndeiyi B.
7. Tarisa tafura inotevera yekuyera huremu nehukuru!
Nzvimbo chaiyo yezvinhu izvi pazvinoiswa mumvura (huwandu hwemvura 1 gr/cm3 ) ndeye...
Kukurukurirana
1. Kuwanda = huremu / vhoriyamu = magiramu 8 / 40 cm 3 = 1/5 gram/cm 3
2. Kuwanda = huremu / vhoriyamu = 60 magiramu / 60 cm 3 = 1 magiramu/cm 3
3. Kuwanda = huremu / vhoriyamu = 200 magiramu / 40 cm 3 = 5 magiramu/cm 3
Kuwanda kwemvura = 1 gramu/ cm3
Inoyangarara kana huwandu hwechinhu < huwandu hwemvura.
Inoyangarara kana huwandu hwechinhu = huwandu hwemvura.
Kunyura kana huwandu hwechinhu > huwandu hwemvura.
Mhinduro chaiyo ndiA.
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