Physics: yuav ua li cas yuav pib hoob kawm? Yuav ua li cas yog qhia nyob rau hauv lub physics qhia

Txhua tus menyuam kawm yuav ua ntej los yog tom qab tau ntsib nrog rau cov tej yam ntuj tso sciences, xws li:

• txog biology;
• Science News for KIDS;
• physics;
• ecology.

Tab sis nyob rau hauv no tsab xov xwm tsuas tham txog tej yam kev kawm raws li physics. Nrog ib tug hauv chav kawm ntawv pib ntawd txoj kev tshawb, dab tsi los npaj? Tag nrho cov no yog los sib tham hauv qab no.

Yuav ua li cas yog hais tias yam khoom?

Physics - qhov kev kawm ntawm cov xwm. Qhov no yog qhia los ntawm tag nrho cov phau ntawv thiab cov xib fwb. Tab sis nyob rau hauv qhov tseeb, lub ntsiab txhais yog ntev npaum li cas, vim hais tias qhov no science tshawb fawb yuav luag tag nrho cov kev cai uas tau tshwm sim nyob rau hauv lub cheeb tsam.

Cov menyuam kawm ntawv kawm yog vim li cas tej lub cev ntog mus rau hauv av, cov dej puv rau dej khov nyob rau hauv ntau yam ntau tshaj yog ntsuas (e.g., siab, lub hwj chim thiab tam sim no) thiab thiaj li nyob. Physics (Qib 7) yuav txoj kev tshawb no ntawm ntau phenomena ob leeg nyob rau qhov thiab nyob rau hauv lub neej txhua hnub.

Yam dab tsi yog kawm nyob rau hauv qib 7?

Ua ntej, paub cov tub ntxhais kawm nrog cov kev kawm, luv luv tham txog dab tsi nws yog. Ib tug zoo xib fwb yuav qhia rau los yog yaam puab paub los nthuav zog. Koj yuav tsum muaj ib lub tswv yim ntawm ib tug dab physicist. Nrog ib tug hauv chav kawm ntawv pib mus kawm ntawv rau hauv lub mechanics thiab cov qauv ntawm cov teeb meem? Nws yog lub 7, raws li cov no cov ntsiab lus yog qhov nyuaj thiab feem ntau yooj yim to taub.

Xav txog tej yam uas txhua txhua hnub koj tsiv mus nyob rau hauv pej xeem thauj los yog mus ko taw, yav tas los cov neeg mus. Lwm cov piv txwv: boiling dej, brewing tshuaj yej nrog qab zib. Thaum zaj lus qhia physics xib fwb yuav qhia rau yuav ua li cas rau ntau yam dab.

Yuav ua li cas los ua kom muaj kev txaus siab?

Tej npe uas muaj feem rau lub neej tiag tiag. Txij ancient sij hawm, cov neeg yuav to taub lub ntiaj teb no, kom koj to taub yuav ua li cas no los yog tias tshwm sim. Nws yog tau hais tias koj tej zaum los yog feem ntau hais kom cov lus nug xws li yuav ua li cas cov noog ya thiab aircraft, yog vim li cas tag nrho cov ntog cia li muaj ib tug hluav taws xob tam sim no, thiab yog vim li cas ib tug magnet rau tag nrho cov hlau los yog hlau. Tag nrho cov lus nug no teb physics. Nrog ib tug hauv chav kawm ntawv pib mus kawm ntawv, piv txwv li, hluav taws xob? Thiab lub suab? Nco ntsoov hais tias qhov no raug pib nrog cov qib 7, thiab xaus nrog rau thaum xaus ntawm lub tsev kawm ntawv (qib 11). Yog li ntawd, tag nrho cov seem yuav tsum tau saib tsis pub dhau 5 xyoo ntawm progressively. Thaum pib ntawm lub feem ntau elementary txoj kev tshawb no. Qhov loj tshaj plaws - mus sim kom paub lub ntsiab txhais ntawm kev to taub lub ntsiab lus, nws yuav yooj yim rau nco ntsoov. Wb muab ib qho piv txwv.

Trajectory - ib tug kab nrog uas lub cev txav.

Yuav ua li cas yog nws? Cia peb ua ntej nco ntsoov hais tias nyob rau hauv tej kev kawm muaj cov nqe lus uas piav qhia txog ib yam dab tsi. Tus thawj lub sij hawm koj hnov lo lus "trajectory", tej zaum txawm raws li ib tug me nyuam los ntawm ib tug neeg laus. Tab sis peb tsis paub dab tsi nws yog. Xav txog tej yam uas koj mus kawm ntawv nyob rau hauv lub snow-them txoj kev nyob rau hauv lub caij ntuj no. Tom qab koj tawm hauv ib co kua nplaum. Xav txog tej yam rau cov saib los ntawm saum toj no. Cov nram qab no qhia txog koj txoj kev thaum koj tsiv mus los ntawm tsev mus rau lub tsev kawm ntawv. Muaj yog ib tug kab lus, piv txwv li: lub asteroid hloov trajectory. Ua li cas nws txhais li cas? Nws tsiv nyob rau hauv ib tug coj, hais los ntawm Mars mus Jupiter, thiab ces muab ib sab.

Tus qauv ntawm qhov teeb meem

Koj yuav tau txais ntsib nrog lub tswvyim ntawm "molecule", uas yuav tshwm sim nyob rau hauv Science News for KIDS thiab biology. Nws yog heev, heev me ntsis tshuaj uas muaj peev xwm nkaus xwb yuav pom nyob rau hauv ib tug haib tshuab kuaj kab mob. Nyob rau hauv txoj kev tshawb no ntawm physics yog zog, uas qhia cov molecular qauv ntawm tej yam tshuaj (e.g., dej, hlau).

menyuam kawm ntawv yuav xub sib ntsib nrog lub laboratory chaw ua hauj lwm uas yuav tsum tau nqa tawm physics. Nrog ib tug hauv chav kawm ntawv pib mus kawm ntawv, ib txoj kev kawm rau ib tug lub npe zaj lus qhia? Nws yog lub 7. Nco ntsoov mus mloog tus xib fwb, sau cia tej yam qhov tsim nyog cov cuab yeej thiab accessories rau coj mus rau lub tom ntej no zaj lus qhia.

Tus sis ntawm lub cev

Koj yuav tsum kawm ua li cas mus nrog lwm tus lub cev. Koj kawm tau ntau yam ntawm cov tshiab ntsiab lus uas, raws li zoo raws li peb ntawm Newton txoj cai, piav qhia txog yuav ua li cas lub ntau yam tshwm sim. Piv txwv li, nyob rau hauv ib tug billiard pob ntaus lwm tus, ob qho tib si retreated. Vim li cas no tshwm sim? Qhov no yuav piav qhia txog physics nyob rau hauv tsev kawm ntawv.

Nyob rau hauv tas li ntawd mus rau lub ntsiab lus (ntawm nqe lus), koj yuav tsum tau kawm cov chav nyob ntawm kev ntsuas cov qauv. Nws yog ib qho tseem ceeb kom paub zoo rau hauv lub lej rau cov tshuaj txog cov teeb meem muaj arisen los xij.

Lub siab ntawm cov dej, gases thiab khib nyiab

Nthuav thiab pab tau cov ntsiab lus yuav tsum yog nyob rau hauv txoj kev tshawb no ntawm seem no: atmospheric siab, navigation thiab tshaj. Dua li ntawm qhov complexity, ib tug loj npaum li cas ntawm cov ntaub ntawv, nws yuav nthuav kom paub yog vim li cas tsis tog ships.

Physics (Qib 7) npaj siab mus xyuas yog vim li cas peb pom txhua txhua hnub. Sim them sai sai mus rau txhua yam nyob ib ncig ntawm nws. Piv txwv li, saib cov huab cua kev twv. Muaj txhua yam los qhia rau dab tsi lub kub yuav tsum nyob rau hauv cov tuaj hnub seb dej nag, cua, raws li zoo raws li qhia, dab tsi yog qhov atmospheric siab thiab cua quab yuam.

Ua hauj lwm, lub hwj chim, lub zog

Nyob rau hauv kem no, koj yuav kawm txog dab tsi tshwm sim ntawm peb, tab sis peb tsis pom. Yuav ua li cas yog kev kawm physics nyob rau hauv cov ntaub ntawv no? Nrog ib tug hauv chav kawm ntawv pib mus kawm ntawv hauv lub chaw ua hauj lwm, lub hwj chim, lub zog? Cia li los ntawm cov qib 7th. Cia peb kawm saib. Piv txwv li, ib tug muaj hmoo kas laub taug kev mus. Yuav ua li cas yog yuav mus rau? Ua hauj lwm yog nqa tawm. Cov me nyuam yaus siv nws lub zog, tshwj xeeb tshaj yog yog hais hnyav laub. Fais fab kuj muaj ib lub ntsiab lus no, vim hais tias nws muaj peev xwm ntsuam xyuas yuav ua li cas tiv nrog qhov teeb meem tus me nyuam.

Nco ntsoov mus tshawb txhua cov lus txhais nyob tiag tiag piv txwv, cov nuj nqis, kos duab. Cim tau cov qauv thiab cov cim, thiab lwm yam tsis. Koj yuav tsum lawv nrog koj kawm ntxiv txog cov kev kawm.

Ntawm no yog peb yog nrog koj thiab to taub, nrog ib tug hauv chav kawm ntawv kawm physics, dab tsi yuav tau raws li. Los ntawm koj tam sim no nws yog nyob ntawm ntau yam: hais tias qhov kev kawm tau muab ntse, koj pib yuav txaus siab, thov kawm nyob rau hauv lub neej tiag tiag.