Yuav ntsuas qhov teeb meem li cas?
Yuav ntsuas qhov teeb meem li cas?

Video: Yuav ntsuas qhov teeb meem li cas?

Video: Yuav ntsuas qhov teeb meem li cas?
Video: yuav ua cas qaib thiaj g txog siav heev.. teeb meem yuav แก้ไข li cas 2024, Kaum ib hlis
Anonim

Qhov ntom. Lub ntsuas kub, ntsuas kub, ntsuas khob, thiab kawm tiav lub tog raj kheej yog cov cuab yeej siv sib txawv ntsuas qhov teeb meem . Ib nplai tuaj yeem ntsuas luj o teeb meem.

Tsis tas li ntawd, 3 txoj hauv kev tuaj yeem ntsuas tau li cas?

Teeb meem tuaj yeem piav qhia los ntawm qee qhov kev ntsuas. Lawv suav nrog qhov ntev, thaj tsam, thiab ntim . Length qhia koj cov naj npawb ntawm cov units uas haum raws ib ntug ntawm ib qho khoom. Nyob rau hauv lub metric system, units ntawm qhov ntev yog nyob ntawm tus ' meter '.

peb ntsuas li cas hauv science? Hauv kev kawm , ntev tej zaum yuav ntsuas nrog rau tus kav metric siv SI units xws li millimeters thiab centimeters. Cov kws tshawb fawb ntsuas huab hwm coj nrog qhov sib npaug, xws li triple beam balance lossis hluav taws xob sib npaug. Hauv kev kawm , qhov ntim ntawm cov kua yuav yog ntsuas nrog ib tug kawm tiav lub tog raj kheej.

Ntawm no, qhov ntsuas ntsuas twg tseem ceeb?

Mass yog tus nqi ntawm teeb meem hauv ib yam khoom. Cov kws tshawb fawb feem ntau ntsuas pawg nrog sib npaug. Ib hom kev tshuav nyiaj li cas hu ua triple beam balance yog nyob rau hauv daim duab hauv qab no.

Cov kws tshawb fawb txhais li cas?

Kev piav qhia: Teeb meem yog tsim los ntawm atoms uas muaj protons, neutrons, thiab electrons. Teeb meem muaj lub cev thiab tshuaj lom neeg, xws li kub taw tes (lub cev) thiab flammability (chemical). Teeb meem tuaj yeem pom tsis pom qhov muag liab qab, xws li cov pa roj ua nce cua.

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