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TUSAALE — Milicsiga iftiinka muraayadaha

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Waxaan awoodi doonaa inaan sharaxo sida iftiinku uga milicsado muraayadaha, xagasha soo-gaadhista (angle of incidence) iyo xagasha milicsiga (angle of reflection).

Hordhac

Casharkan wuxuu ku saabsan yahay milicsiga iftiinka, gaar ahaan sida uu iftiinku u dhaqmo marka uu ku dhaco muraayad siman. Waxaad baran doontaa xagasha soo-gaadhista iyo xagasha milicsiga, iyo sida ay u xiriiraan. Kahor intaadan daawanin fiidiyowga, waa inaad hore u taqaan fikradda iftiinka sida shucaac (ray) toosan iyo in muraayaduhu ay leeyihiin dusha siman oo iftiinka ka milicsada.

Muuji qoraalka
Light travelling in one direction (along a ray) that hits a mirror reflects (bounces off the mirror) in one direction. The ‘normal’ is an imaginary line drawn at 90° to the point of reflection. The angles of incidence and reflection are measured to the normal. The angle of reflection is always equal to the angle of incidence, the other side of the normal. On a graph, a line of best fit highlights the main pattern of the data, ignoring small errors.

Warqadda shaqada

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Imtixaannada

  1. 1. Sawirrada soo socda, kee baa si sax ah u muujinaya iftiinka (light rays) ka soo baxaya laambad?

    • Jawaabta saxda ah:Sawirka koowaad
    • Sawirka labaad
    • Sawirka saddexaad

  2. 2. Waa kuwee qaybaha (units) ee xaglaha lagu cabbiro?

    • mitir
    • Jawaabta saxda ah:darajo (degrees)
    • milimitir
    • mililitir

  3. 3. Waa imisa cabbirka xagasha la calaamadeeyay?

    • 50°
    • Jawaabta saxda ah:90°
    • 100°
    • 180°
    • 360°

  4. 4. Qalabkee ka mid ah kuwan soo socda ayaa loo isticmaalaa in lagu cabbiro xaglaha (angles)?

    • rulerkii (ruler)
    • compaskii (compass)
    • Jawaabta saxda ah:protractor-ka (protractor)
    • set square-ka (set square)

  5. 5. Waa imisa cabirka xagasha calaamadeysan ee u dhaxaysa labada xariiq ee sawirka ku jira?

    • Jawaabta saxda ah:37°
    • 43°
    • 143°
    • 157°

  1. 1. Jaantusyada waxay muujinayaan iftiin raajo (light ray) oo ka soo baxaya muraayad (mirror). Jaantuskee ayaa lagu calaamadeeyay xagasha iftiinka (angle of incidence)?

    • Jaantuska koowaad
    • Jaantuska labaad
    • Jawaabta saxda ah:Jaantuska saddexaad
    • Jaantuska afraad

  2. 2. Mid ka mid ah kuwan soo socda ayaa ah sharciga koowaad ee milicsiga (reflection)?

    • xagasha milicsiga ayaa ka weyn xagasha soo-gaadhista
    • Jawaabta saxda ah:xagasha milicsiga waxay la mid tahay xagasha soo-gaadhista
    • xagasha milicsiga iyo xagasha soo-gaadhista ayaa isku darkoodu yahay 90°
    • xagasha milicsiga iyo xagasha soo-gaadhista ayaa isku darkoodu yahay 180°

  3. 3. Waa kuwee kuwa soo socda ee ah sharciyada labaad iyo saddexaad ee milicsiga (reflection)?

    • Laan-dhufashada (incident ray) iyo laan-dhufashada milicsiga (reflected ray) waxay ku yaalliin dhinac isku mid ah oo ka mid ah xariiqda toosan (normal).
    • Jawaabta saxda ah:Laan-dhufashada iyo laan-dhufashada milicsiga waxay ku yaalliin dhinacyo iska soo horjeeda oo ka mid ah xariiqda toosan.
    • Jawaabta saxda ah:Laan-dhufashada, laan-dhufashada milicsiga, iyo xariiqda toosan waxay ku yaalliin hal diyaarad (sagxad fidsan).
    • Laan-dhufashada, laan-dhufashada milicsiga, iyo xariiqda toosan waxay ku yaalliin diyaarado kala duwan.

  4. 4. Arday ayaa baaraya milicsiga iftiinka muraayad. Waxay yareeyaan xagasha soo-gaadhista (angle of incidence). Kee ayaa qeexaya waxa ku dhaca xagasha milicsiga (angle of reflection)?

    • Waa korortaa.
    • Jawaabta saxda ah:Waa hoos u dhacdaa.
    • Waa isku mid ahaanaysaa.
    • Waa aan la saadaalin karin.

  5. 5. Maxay tahay sababta ay u yar tahay in cabbirka xagasha milicsiga uu si sax ah u la mid noqdo xagasha soo-gaadhista?

    • Jawaabta saxda ah:Muraayadda laga yaabaa in aanay si sax ah ugu toosin xariiqda muraayadda ee jaantuska.
    • Dusha muraayadda laga yaabaa in aanay simanayn.
    • Xariiq qalin fiiqan ayaa adag in la arko marka la isticmaalayo protractor.
    • Jawaabta saxda ah:Protractor-ku wuxuu cabbiraa ilaa heerka ugu dhow.
    • Jawaabta saxda ah:Iftiinka layska (ray lamp) waa ka ballaadhan yahay xariiqda qalin fiiqan.

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