The Electromagnetic Spectrum
Gbogbo ọrọ náà
Visible light is just one small part of a much larger family of waves. From radio waves to gamma rays, the electromagnetic spectrum spans an enormous range of wavelengths and frequencies, each with its own uses and dangers.
In this lesson you will learn the order of the electromagnetic spectrum, the uses of each type of radiation, the harmful effects of excessive exposure, and the protective measures that reduce those risks.
Ebumnobi
- Know that light is part of a continuous electromagnetic spectrum
- Know the order of the electromagnetic spectrum in terms of decreasing wavelength and increasing frequency
- Explain some of the uses of electromagnetic radiations
- Explain the detrimental effects of excessive exposure of the human body to electromagnetic waves and describe simple protective measures
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na The Electromagnetic Spectrum. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which EM wave has the longest wavelength? A) Gamma rays B) X-rays C) Radio waves D) Microwaves Answer: C
- All EM waves travel at: A) 340 m/s B) 3 x 10^6 m/s C) 3 x 10^8 m/s D) Variable speeds Answer: C
- Excessive UV exposure can cause: A) Hearing loss B) Skin cancer C) Hypothermia D) Magnetic fields Answer: B
- Which is used in medical imaging of bones? A) Infrared B) Microwaves C) X-rays D) Radio waves Answer: C
- In order of increasing frequency: visible, infrared, ultraviolet. Correct? A) Yes B) No, it should be infrared, visible, ultraviolet C) No, it should be ultraviolet, visible, infrared D) No, they have equal frequency Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara The Electromagnetic Spectrum? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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