Qhov txawv ntawm pawg thiab qhov hnyav

Cov txheej txheem:

Qhov txawv ntawm pawg thiab qhov hnyav
Qhov txawv ntawm pawg thiab qhov hnyav

Video: Qhov txawv ntawm pawg thiab qhov hnyav

Video: Qhov txawv ntawm pawg thiab qhov hnyav
Video: pehawm vajtswv ntawm sab ntsuj plig thiab qhov tseeb yog pe li cas 2024, Kaum ib hlis
Anonim

Qhov txawv ntawm qhov hnyav thiab qhov hnyav yog qhov loj tsis nyob ntawm lub ntiajteb txawj nqus, qhov hnyav nyob ntawm lub ntiajteb txawj nqus.

Peb feem ntau siv cov ntsiab lus loj thiab qhov hnyav sib hloov raws li cov lus sib piv, tab sis lawv txawv ntawm ib leeg. Qhov hnyav yog qhov ntsuas ntawm cov teeb meem hauv lub cev thaum qhov hnyav yog qhov ntsuas ntawm qhov hnyav ntawm qhov hnyav vim qhov nrawm vim lub ntiajteb txawj nqus.

Mass yog dab tsi?

Mass yog qhov ntsuas ntawm cov teeb meem hauv lub cev. Peb tuaj yeem txhais tau tias siv m lossis M. Vim tias nws yog ib qho khoom ntawm qhov teeb meem, nws tsis nyob ntawm lub ntiajteb txawj nqus. Qhov no txhais tau tias, tsis zoo li qhov hnyav ntawm cov khoom, qhov loj yog tib yam nyob txhua qhov chaw. Tsis tas li ntawd, pawg tsis tuaj yeem yog xoom vim qhov teeb meem nyob txhua qhov chaw.

Qhov sib txawv ntawm pawg thiab qhov hnyav
Qhov sib txawv ntawm pawg thiab qhov hnyav

Daim duab 01: Mass in Kilograms

Vim huab hwm coj muaj qhov loj, nws yog qhov muaj nuj nqis. Peb tuaj yeem ntsuas qhov loj uas siv qhov sib npaug zoo tib yam. Feem ntau, qhov ntsuas qhov ntsuas yog grams thiab kilograms.

Nyhav yog dab tsi?

Nyhav yog qhov ntsuas ntawm lub zog ua haujlwm ntawm qhov hnyav vim qhov nrawm vim lub ntiajteb txawj nqus. Peb qhia nws los ntawm W. Qhov sib npaug yooj yim uas peb tuaj yeem tau txais qhov hnyav ntawm ib qho khoom yog raws li hauv qab no:

Nyhav=m (mass) x g (kev nrawm vim lub ntiajteb txawj nqus)

Vim qhov hnyav nyob ntawm lub ntiajteb txawj nqus, nws txawv raws qhov chaw. Yog li ntawd, nws nce los yog txo nrog siab dua lossis qis dua. Ntxiv mus, qhov hnyav tuaj yeem yog xoom yog tias tsis muaj lub ntiajteb txawj nqus, i.e. hauv qhov chaw. Tsis tas li ntawd, qhov hnyav yog vector kom muaj nuj nqis. Nws muaj qhov loj thiab muaj kev taw qhia, piv txwv li coj mus rau qhov chaw nruab nrab ntawm lub ntiaj teb.

Qhov tseem ceeb sib txawv - Mass vs Nyhav
Qhov tseem ceeb sib txawv - Mass vs Nyhav

Daim duab 02: Caij nplooj ntoos hlav Balance

Peb tuaj yeem ntsuas qhov hnyav siv lub caij nplooj ntoo hlav; tsis yog txhua qhov sib npaug zoo tib yam tuaj yeem ntsuas qhov hnyav. Chav ntsuas ntawm qhov ntsuas yog Newton (lub ntsuas ntawm lub zog).

Qhov txawv ntawm pawg thiab qhov hnyav yog dab tsi?

Mass yog qhov ntsuas ntawm cov teeb meem hauv lub cev. Qhov hnyav yog qhov ntsuas ntawm lub zog ntawm qhov hnyav vim qhov nrawm vim lub ntiajteb txawj nqus. Yog li, qhov sib txawv tseem ceeb ntawm qhov hnyav thiab qhov hnyav yog qhov loj tsis nyob ntawm lub ntiajteb txawj nqus, qhov hnyav nyob ntawm lub ntiajteb txawj nqus. Yog li, qhov loj tsis tuaj yeem yog xoom, tab sis qhov hnyav tuaj yeem yog xoom yog tias tsis muaj lub ntiajteb txawj nqus, i.e. hauv qhov chaw, tsis muaj lub ntiajteb txawj nqus.

Ntxiv mus, lwm qhov sib txawv ntawm qhov hnyav thiab qhov hnyav yog tias tus nqi ntawm qhov hnyav yog tus nqi ruaj khov rau qee yam khoom, tab sis tus nqi ntawm qhov hnyav tuaj yeem sib txawv nyob ntawm qhov chaw ntawm qhov khoom.

Qhov sib txawv ntawm pawg thiab qhov hnyav hauv daim ntawv Tabular
Qhov sib txawv ntawm pawg thiab qhov hnyav hauv daim ntawv Tabular

Summary – Mass vs Nyhav

Txawm tias peb siv cov ntsiab lus loj thiab qhov hnyav sib hloov, nws muaj qhov sib txawv ntawm qhov hnyav thiab qhov hnyav. Qhov sib txawv tseem ceeb ntawm qhov hnyav thiab qhov hnyav yog qhov loj tsis nyob ntawm lub ntiajteb txawj nqus, qhov hnyav nyob ntawm lub ntiajteb txawj nqus.

Pom zoo: