Video: Dab tsi yog cov particles muaj teeb meem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teeb meem yog tsim los ntawm atoms, thiab atoms yog suav nrog ntawm protons, neutrons, thiab electrons. Txhua yam hauv ntiaj teb yog tsim los ntawm teeb meem . Txawm li cas los teeb meem muaj nyob rau hauv ntau hom sib txawv, txhua daim ntawv yog tsim los ntawm tib lub hauv paus constituents: me me cov khoom npe atom.
Piv txwv li, dab tsi yog qhov particle ntawm teeb meem?
Raws li protons, neutrons thiab electrons A txhais ntawm " teeb meem "ntau tshaj qhov zoo tshaj qhov atoms thiab molecules txhais yog: teeb meem yog tsim los ntawm dab tsi atoms thiab molecules yog ua los ntawm, txhais tau tias txhua yam ua los ntawm cov protons raug nqi, nruab nrab neutrons, thiab negativelycharged electrons.
Kuj Paub, vim li cas qhov teeb meem ua los ntawm cov khoom? Cov cov khoom uas ua li qhov teeb meem hu ua atoms. Koj tsis tuaj yeem pom atoms vim tias lawv me me. Ntau cov atoms koom ua ke los ua li qhov teeb meem uas koj tuaj yeem pom. Cov kws tshawb fawb paub txog ntau hom atoms.
Hais txog qhov no, dab tsi yog 12 qhov teeb meem?
Kaum ob no cov khoom (fermions) muab faib ua ob pawg: rau quarks thiab rau lepton. Cov quarks hu ua up, down, coj txawv txawv, ntxim nyiam, sab saum toj thiab hauv qab. Cov leptons yog hu ua electron, electron neutrino, muon, muon neutrino, tau thiab tauneutrino.
Dab tsi yog teeb meem Muab 5 piv txwv?
Raws li niaj hnub physics, teeb meem muaj ntau hom particles, txhua tus nrog loj thiab loj. Qhov paub zoo tshaj plaws piv txwv ntawm cov khoom hais yog electron, proton thiab neutron. Tsawg tus paub lub xeev ntawm teeb meem suav nrog ntshav, ua npuas ncauj thiab Bose-Einstein condensate.
Pom zoo:
Cov txheej txheem ntawm kev tsim cov kev daws teeb meem yog dab tsi?
Kev daws yog tsim thaum ib yam khoom hu ua thesolute 'dissolves' rau hauv lwm yam khoom hu ua hnyav.Dissolving yog thaum lub solute tawg los ntawm ib tug loj siv lead ua ntawm molecules mus rau ntau me me los yog ib tug molecules. Lawv ua qhov no los ntawm rub tawm cov ions thiab tom qab ntawd ncig cov ntsev molecules
Puas yog beta particles muaj teeb meem rau tib neeg?
Ib qho beta particle yog li 8,000 npaug me dua li alpha particle - thiab qhov ntawd yog qhov ua rau lawv txaus ntshai. Lawv qhov me me tso cai rau lawv nkag mus rau khaub ncaws thiab tawv nqaij. Kev raug sab nraud tuaj yeem ua rau kub hnyiab thiab cov ntaub so ntswg puas, nrog rau lwm cov tsos mob ntawm kev mob hluav taws xob
Puas muaj zog npaum li cas yog cov kua qaub los yog cov hauv paus daws teeb meem?
Qhov ntau ntawm 0 mus rau 14 muab kev ntsuas ntawm kev sib piv lub zog ntawm cov kua qaub thiab cov hauv paus daws teeb meem. Cov dej ntshiab thiab lwm cov kev daws teeb meem nruab nrab muaj tus nqi pH ntawm 7. Tus nqi pH tsawg dua 7 qhia tias cov kua qaub yog acidic, thiab pH tus nqi ntau dua 7 qhia tias cov tshuaj yog qhov yooj yim
Cov roj teeb puas muaj teeb meem?
Cov roj teeb hlawv tawm cov pa phem, uas ua rau lub ntsws ua pa. Cov roj teeb tawm: Tsis txhob cuam tshuam cov hluav taws xob xau, nws tuaj yeem ua rau mob hnyav thiab / lossis puas tsuaj rau daim tawv nqaij, mucous membrane lossis ob lub qhov muag
Dab tsi yog qhov kev faib tawm ntawm cov teeb meem raws li muaj pes tsawg leeg?
Cov teeb meem tuaj yeem muab faib ua ob pawg dav: cov tshuaj ntshiab thiab cov khoom sib tov. Cov khoom ntshiab yog ib daim ntawv ntawm cov teeb meem uas muaj qhov sib xyaw ua ke thiab cov khoom uas tsis tu ncua thoob plaws hauv cov qauv. Kev sib xyaw ua ke yog kev sib xyaw ua ke ntawm ob lossis ntau lub ntsiab lus thiab / lossis cov khoom sib txuas