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Waxaan sharxi karaa sida gariirka loo gudbiyo hawada, si codka loo maqlo.

Hordhac

Darsigani waa qayb ka mid ah cutubka loo yaqaan 'Dhawaq, Iftiin, iyo Arag'. Wuxuu ku saabsan yahay sida gariirka hawada loogu gudbiyo si codka loo maqlo. Kahor intaadan bilaabin, waa inaad hore u taqaanid in codka uu ka yimaado shay gariiraya.

Muuji qoraalka

A vibrating object causes nearby air particles to vibrate too. Air particles are knocked forwards but then spread backwards when the object moves back. Vibrating air particles knock into their neighbours and set them vibrating too, in the same way. The pattern of vibrating particles creates a sound wave. Sound does not involve air particles travelling. Scientific models often only accurately reflect some aspects of what they represent.

Warqadda shaqada

weli lama diyaarin

Imtixaannada

1. Ficiladaan ee soo socda keebaa ah gariir (vibration)?
- kobcinta iyo yaraanshaha oo soo noqnoqda
- Jawaabta saxda ah:dhaqdhaqaaqa kor iyo hoos oo soo noqnoqda
- Jawaabta saxda ah:dhaqdhaqaaqa bidix iyo midig oo soo noqnoqda
- Jawaabta saxda ah:dhaqdhaqaaqa hor iyo gadaal oo soo noqnoqda
2. Saddex shay oo dhawaaq samayn kara waa: qof hadlaya, biibiye (flute) iyo violin. Immisa ka mid ah kuwani waxay dhawaaq sameeyaan iyagoo wax gariiraya?
- midna ma aha
- hal
- laba
- Jawaabta saxda ah:saddex
3. Dee ka mid ah isbeddelladan soo socda ayaa hoos u dhigi doona codka (pitch) ee dhawaaqa durbaanka?
- Jawaabta saxda ah:Ka dhig haragga durbaanka mid aan adkeyn.
- Isticmaal durbaan ka yar.
- Ku dhufo durbaanka si khafiif ah.

1. Mid ka mid ah kuwan soo socda ayaa ah sharaxaad mowjad (wave)?
- Jawaabta saxda ah:khalkhal socda (travelling disturbance)
- urur ka kooban walxaha (particles)
- qadar tamar ah (amount of energy)
2. Ruler gariiraya ayaa sameeya dhawaq. Markasta oo uu rulerku hor u dhaqaaqo, wuxuu riixaa walxaha hawada (air particles) ee hortiisa. Maxay yeeshaan walxahan si uu dhawaqu u safro isagoo ku faafaya qolka?
- Waxay u safraan ilaa dhinaca kale ee qolka.
- Jawaabta saxda ah:Waxay ku dhufanayaan walxaha hawada ee hortooda.
- Waxay jiidayaan walxo kale oo hawada ah oo iyaga ku xiran.
- Waxay ku dhegayaan walxaha hawada ee hortooda.
3. Mid ka mid ah kuwan soo socda ayaa sharxaya sida qofku u maqli karo dhawaq?
- Mawjada dhawaqa waxay keentaa in hawadu ku ururto gudaha dhegta.
- Jawaabta saxda ah:Mawjada dhawaqa waxay keentaa in qayb ka mid ah dhegta ay u dhaqaaqdo hor iyo dib.
- Mawjada dhawaqa waxay ku kululaan oo ku qaboobaan dhegta.
4. Moodel saynis (scientific model) waa {{}} ku saabsan qayb ama hab-dhaqanka adduunka dhabta ah.
- tilmaan sax ah oo dhamaystiran
- sawir aan sawiri karno
- qiyaas wanaagsan oo aan samayn karno
- Jawaabta saxda ah:hab fikir oo waxtar leh laakiin aan had iyo jeer sax ahayn
- moodel 3D oo aan samayn karno (tusaale, dhoobada)
5. Qaab fudud oo loo eego mowjadda dhawaaqa (sound wave) ee hawada, walxaha hawadu waxay u dhaqaaqaan gadaal iyo hor. Mowjaddu waxay safartaa sababtoo ah walxuhu waxay ku dhufanayaan walxo kale. Waa kuwee faahfaahinta soo socota ee qaabkani aan u fiirsan?
- xaqiiqda ah in hawadu tahay gaas
- Jawaabta saxda ah:dhaqdhaqaaqa aan tooska ahayn ee walxaha hawadu
- gariirka gadaal iyo hor ee walxaha hawadu
- Jawaabta saxda ah:noocyada kala duwan ee walxaha hawadu

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