Qhov txawv ntawm ib tug joule thiab ib kilojoule yog dab tsi?
Qhov txawv ntawm ib tug joule thiab ib kilojoule yog dab tsi?

Video: Qhov txawv ntawm ib tug joule thiab ib kilojoule yog dab tsi?

Video: Qhov txawv ntawm ib tug joule thiab ib kilojoule yog dab tsi?
Video: Tuag Ua Dab Tsi💘by TXOS LAUJ / Nkauj Tawm Tshiab 2021 Official 2024, Kaum ib hlis
Anonim

1 Kilojoule ( kJ ua ) yog sib npaug rau 1000 joules ua (J). Hloov ua lwm yam kJ ua rau joules ua , multiply kJ ua tus nqi los ntawm 1000. yog dab tsi Kilojoule ? Kilojoule yog ib lub metric system unit (hluav taws xob, mechanical orthermal) thiab yog sib npaug rau 1000 npaug ntawm cov nyiaj ua hauj lwm ua los ntawm aforce ntawm ib tug newton txav ib yam khoom ib 'meter'.

Yog li, qhov txawv ntawm calorie thiab ib joule yog dab tsi?

Ib qho me me calorie ntau ntau yog kwv yees li 4.2 joules ua (yog li ib qho loj calorie ntau ntau yog hais txog 4.2 kilojoules). Yam khoom siv los hloov calories rau joules ua ntawm qhov muab qhov kub thiab txias yog qhov sib npaug rau qhov tshwj xeeb kub muaj peev xwm ntawm cov dej qhia hauv joules perkelvin ib gram lossis ib kilogram.

Tsis tas li ntawd, Kilojoule yog dab tsi? A kilojoule ua (los yog Calorie) yog ib chav tsev ntawm lub zog. Hauv Australia, peb siv kilojoules (kJ) ntsuas seb cov neeg muaj zog npaum li cas los ntawm kev noj zaub mov lossis dej haus. Cov kilojoule ua Cov ntsiab lus ntawm cov khoom noj yog nyob ntawm tus nqi ntawm cov carbohydrates, cov rog thiab cov protein muaj nyob hauv cov zaub mov, thiab qhov loj me.

Hauv qhov no, Joules puas zoo ib yam li kilojoules?

Lub picojoule (pJ) yog sib npaug rau ib trillionth (1012) ib joule ua . Themillijoule (mJ) yog sib npaug rau ib txhiab (103) ntawm a joule ua . Kilojoule . Cov kilojoule ua ( kJ ua ) yog sib npaug rau ib txhiab (103) joules ua.

Muaj pes tsawg joules nyob hauv Coulomb?

Lo lus teb yog 1.

Pom zoo: