Tamarta iyo walaxda

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I can describe differences between the energy of different substances at the same temperature.

Muuji qoraalka

It is easier to increase the temperature of some materials than others. The mass of particles and the attractive forces between particles are different in different substances. Different substances need different amounts of heating to reach the same temperature. The same amount of different materials at the same temperature can cause different amounts of heating. The higher the specific heat capacity, the more energy 1 kg of a substance has, at a temperature, in the thermal store.

Warqadda shaqada

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Imtixaannada

1. Waa maxay aragtida aasaasiga ah ee walxaha (particle theory)?
- Walxuhu waxay ka samaysan yihiin maaddo joogto ah (continuous matter).
- Walxuhu waxay ka samaysan yihiin walxo aan la arki karin.
- Jawaabta saxda ah:Walxuhu waxay ka samaysan yihiin qaybo (particles) had iyo jeer dhaqaaqaya.
- Walxuhu waxay ka samaysan yihiin qaybo aad u yar oo aan dhaqaaqin.
2. Waa maxay kaydka tamarta kulaylka (thermal energy store)?
- Jawaabta saxda ah:tamarta uu leeyahay shay sababtoo ah heerkulkiisa
- tamarta lagu kala wareejiyo iftiinka
- tamarta ku kaydsan xidhiidhada kiimikada
- tamarta lagu kala wareejiyo mowjadaha codka
3. Waa kuwee kuwan sababa in tamarta kaydka kulaylka (thermal energy store) ay hoos u dhacdo?
- tamarta lagu wareejiyo iftiinka
- kororka heerkulka
- kororka cufka (mass)
- Jawaabta saxda ah:tamarta lagu wareejiyo agagaarka
4. Maxaa dhacaya qaybaha (particles) dareeraha (liquid) ka samaysan marka la qaboojiyo heerkul hoose?
- Jawaabta saxda ah:Qaybuhu waxay gariiraan dib iyo hor si gaabis ah.
- Qaybuhu waxay gariiraan dib iyo hor si degdeg ah.
- Qaybuhu waxay gariiraan dib iyo hor isku xawaare.
- Qaybuhu way yaraadaan cabbir ahaan.
5. Maxaa ku dhaca tamarta koob shaah ku jirta kaydka kulaylka (thermal store) marka uu qaboobayo?
- Waa si tartiib ah loo isticmaalaa.
- Jawaabta saxda ah:Waxaa loo wareejiyaa walxaha qabow ee la taabanaya.
- Waxaa loo wareejiyaa agagaarka (surroundings).
- Waa uumayaa (evaporates).

1. Waa maxay walax saafi ah (pure substance)?
- isku dhaf walxo kala duwan ah
- Jawaabta saxda ah:walax ka kooban walxo isku mid ah oo leh cuf isku mid ah
- walax aan la kululeyn karin
- walax si fudud u beddesha xaaladdeeda
2. Sida uu kuleylku ugu wareejiyo tamarta?
- Jawaabta saxda ah:laga bilaabo heerkulka sare una guuro heerkulka hoose
- laga bilaabo heerkulka hoose una guuro heerkulka sare
- ma wareejiyo tamarta
3. Awoodda kulaylka ee gaarka ah (specific heat capacity) waa sifo ka mid ah walaxda oo go'aamisa inta...
- tamarta uu leeyahay walaxdu.
- Jawaabta saxda ah:tamarta loo baahan yahay in loo wareejiyo walaxda si loo kordhiyo heerkulkeeda.
- walaxdu kululaato.
- walaxdu dhalaasho.
4. Maxay sababta u ah in walxaha ku jira isku dhafka (mixture) ay u socdaan xawli kala duwan?
- maxaa yeelay waa isku mid
- maxaa yeelay cufkoodu (mass) waa isku mid
- maxaa yeelay ma dhaqaaqaan
- Jawaabta saxda ah:maxaa yeelay cufkoodu (mass) waa kala duwan yahay
5. Saddex kubbadood oo bir ah oo cufkiisu isku mid yahay ayaa kulayl lagu shiday foornada muddo isku mid ah. Birtee ayaa leh awoodda kulaylka gaarka ah ee ugu hooseysa?
- birta (iron)
- aluminium
- Jawaabta saxda ah:naxaasta (copper)

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