General Properties Of Waves Continued
Gbogbo ọrọ náà
Drop a stone in a pond and circular ripples spread out; they bounce off a wall, bend where the water is shallow, and spread through a gap. Those same three behaviours, reflection, refraction and diffraction, are shown by every wave, from water ripples to light and sound.
In this lesson you will distinguish longitudinal from transverse waves, describe how waves reflect, refract and diffract, and explain how a ripple tank demonstrates each one. You will also learn how the size of a gap and the wavelength control how much a wave spreads out.
Ebumnobi
- Know that for a longitudinal wave, the direction of vibration is parallel to the direction of propagation and understand that sound waves and seismic P-waves (primary) can be modelled as longitudinal
- Describe how waves can undergo: (a) reflection at a plane surface (b) refraction due to a change of speed (c) diffraction through a narrow gap
- Describe the use of a ripple tank to show: (a) reflection at a plane surface (b) refraction due to a change in speed caused by a change in depth (c) diffraction due to a gap (d) diffraction due to an edge
- [Supplement] Describe how wavelength and gap size affects diffraction through a gap
- [Supplement] Describe how wavelength affects diffraction at an edge
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 General Properties Of Waves Continued. 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.
- In a longitudinal wave, the vibration is: A. at right angles to the direction of travel B. parallel to the direction of travel C. always vertical D. zero Answer: B
- Which wave is longitudinal? A. light B. water ripples C. sound D. a wave on a rope Answer: C
- When a wave refracts, the quantity that stays the same is the: A. speed B. wavelength C. frequency D. direction Answer: C
- Diffraction through a gap is greatest when the gap is: A. much larger than the wavelength B. about equal to the wavelength C. zero D. unrelated to the wavelength Answer: B
- Water waves slow down as they move into shallower water. Their wavelength: A. increases B. decreases C. stays the same D. becomes zero 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 General Properties Of Waves Continued? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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