Cov txheej txheem:
- Txawm hais tias kev tshawb fawb feem ntau faib EM nthwv dej rau hauv xya hom, txhua yam yog qhov tshwm sim ntawm tib yam tshwm sim
- Kev siv Electromagnetic Spectrum hauv Lub Neej Txhua Hnub
Video: Ib co piv txwv ntawm electromagnetic waves yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm electromagnetic waves suav nrog xov tooj cua nthwv dej , microwaves, infrared, pom lub teeb, ultraviolet, x-rays, thiab gamma rays. Xov tooj cua nthwv dej muaj lub zog qis tshaj plaws thiab zaus thiab qhov ntev tshaj plaws wavelength.
Xav txog qhov no, dab tsi yog 7 hom electromagnetic waves?
Txawm hais tias kev tshawb fawb feem ntau faib EM nthwv dej rau hauv xya hom, txhua yam yog qhov tshwm sim ntawm tib yam tshwm sim
- Xov tooj cua Waves: Instant Communication.
- Microwaves: Cov ntaub ntawv thiab cua sov.
- Infrared Wave: Invisible Thaum tshav kub kub.
- Pom Teeb Rays.
- Ultraviolet waves: Lub teeb muaj zog.
- X-rays: Penetrating Radiation.
- Gamma Rays: Nuclear Zog.
Tsis tas li ntawd, kev siv hluav taws xob hluav taws xob yog dab tsi? Electromagnetic tsis yog siv xa xov tooj cua ntev / luv / FM wavelength nthwv dej , thiab TV / xov tooj / wireless signals lossis lub zog. Lawv kuj yog lub luag haujlwm rau kev xa hluav taws xob nyob rau hauv daim ntawv ntawm microwaves, infrared hluav taws xob (IR), pom lub teeb (VIS), ultraviolet lub teeb (UV), X-rays, thiab gamma rays.
Ua raws li qhov xav tau, peb yuav siv cov hluav taws xob hluav taws xob li cas hauv lub neej niaj hnub?
Kev siv Electromagnetic Spectrum hauv Lub Neej Txhua Hnub
- Microwave hluav taws xob muaj tsawg zaus thiab ntev wavelength dua li pom lub teeb.
- Siv rau Microwave hluav taws xob:
- Ua noj:
- microwave hluav taws xob yog nqus los ntawm cov dej molecules uas ua kom sov thiab ua noj cov zaub mov thaum tua cov kab mob.
- Kev sib txuas lus:
- Microwave hluav taws xob kuj tseem siv tau los xa cov teeb liab.
Yuav ua li cas electromagnetic yoj tsim?
Ib electromagnetic yoj tuaj yeem tsim los ntawm kev them nqi nrawm; tsiv cov nqi rov qab thiab rov qab yuav tsim tawm oscillating hluav taws xob thiab magnetic teb, thiab cov no mus ntawm qhov ceev ntawm lub teeb.
Pom zoo:
Ib qho piv txwv ntawm electromagnetic spectrum yog dab tsi?
Tag nrho cov electromagnetic spectrum, los ntawm qhov qis tshaj mus rau lub siab tshaj plaws zaus (ntev tshaj plaws mus rau luv tshaj wavelength), suav nrog tag nrho cov xov tooj cua tsis (xws li, xov tooj cua lag luam thiab TV, microwaves, radar), hluav taws xob infrared, pom lub teeb, ultraviolet hluav taws xob, X-rays, thiab gamma rays
Ib qho piv txwv ntawm nuclear zog rau electromagnetic zog yog dab tsi?
Piv txwv 1: Gamma Rays. Gamma rays yog tsim los ntawm nuclear fusion cov tshuaj tiv thaiv ntawm lub hnub lossis cov hluav taws xob tawg ntawm uranium hauv lub ntiaj teb pob zeb. Gamma rays yog lub zog tsis tshua muaj zog uas tsim los ntawm cov tshuaj tiv thaiv nuclear
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb