Video: Ob chav kawm tseem ceeb ntawm teeb meem yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teeb meem tuaj yeem tawg rau hauv ob pawg: ntshiab tshuaj thiab sib tov. Cov tshuaj ntshiab yog ntxiv rau hauv cov ntsiab lus thiab cov khoom sib txuas. Mixtures yog lub cev sib xyaw ua ke uas tuaj yeem sib cais rau hauv lawv cov khoom qub. Cov tshuaj yog tsim los ntawm ib hom atom los yog molecule.
Tsis tas li ntawd, 2 kev faib tawm ntawm cov teeb meem yog dab tsi?
Ob txoj hauv kev ntawm kev faib tawm teeb meem yog raws li nws lub cev lub cev (raws li roj, kua, los yog khoom) thiab raws li nws muaj pes tsawg leeg (raws li ib yam khoom, compound, los yog sib tov). Ib qho piv txwv ntawm teeb meem tuaj yeem yog roj, kua, lossis khoom. Peb hom ntawm no teeb meem hu ua states teeb meem.
Ib sab saum toj no, dab tsi yog 2 hom tshuaj dawb huv? Muaj ob hom tshuaj ntshiab uas yog Elements thiab Compounds. Piv txwv ntawm cov ntsiab lus yog: Hlau, Nyiaj, Kub, Mercury thiab lwm yam. Piv txwv ntawm cov tebchaw yog: Dej, carbon dioxide, methane, vinegar thiab lwm yam.
Kuj nug tias, ob lub ntsiab lus tseem ceeb ntawm cov teeb meem txawv li cas?
Teeb meem yog muab faib ua ob sab pawg, uas yog, cov tshuaj ntshiab thiab cov khoom sib tov. Cov khoom xyaw ua tau muab cais ua cov khoom ntshiab los ntawm kev siv lub cev. Cov tshuaj ntshiab yog ntxiv muab faib ua pawg raws li cov ntsiab lus thiab cov tebchaw. Ib yam khoom ntshiab ua tau yuav yog ib qho khoom los yog cov khoom sib xyaw.
Dab tsi yog qhov teeb meem thiab nws hom?
Teeb meem yog ib yam khoom uas muaj inertia thiab occupies lub cev qhov chaw. Raws li niaj hnub physics, teeb meem muaj ntau yam hom ntawm particles, txhua qhov loj thiab loj. Teeb meem tuaj yeem muaj nyob hauv ntau lub xeev, tseem hu ua theem. Peb lub xeev feem ntau hu ua khoom, kua thiab roj.
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