Physical Processes That Shape The Coast
Gbogbo ọrọ náà
Stand on a beach and watch the waves. Some surge gently up the sand and leave it behind; others crash down and drag it back to sea. Those two kinds of wave, building and destroying, are the engine of every coastline. Add the energy of storms and the steady sideways nudge of longshore drift, and you have the forces that carve cliffs, build beaches and move sand for miles along the shore.
This lesson explains how the sea does its work. You will learn the difference between constructive and destructive waves, the four processes of coastal erosion, how material is transported and deposited, how wave refraction concentrates energy on headlands, and exactly how longshore drift moves sediment along a coast.
Ebumnobi
- Coastal erosion: hydraulic action, corrosion, corrasion, attrition; transportation; deposition; longshore drift.
- Types of waves: constructive and destructive and wave refraction.
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 Physical Processes That Shape The Coast. 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.
- The distance of open water over which the wind blows is the: A. swash B. fetch C. backwash D. wavelength Answer: B
- Constructive waves are characterised by: A. strong backwash B. high energy C. strong swash and weak backwash D. short wavelength Answer: C
- Erosion by waves compressing air in cracks in a cliff is: A. corrasion B. attrition C. hydraulic action D. corrosion Answer: C
- Longshore drift moves material along a coast because: A. the backwash carries it up the beach B. the swash moves up at an angle and the backwash returns straight down C. tides pull it offshore D. rivers push it along Answer: B
- Wave refraction tends to concentrate erosion on: A. bays B. beaches C. headlands D. spits Answer: C
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 Physical Processes That Shape The Coast? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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