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Om die werking van die dinamo as bron van elektriese energie te kan beskryf

Module by: Siyavula Uploaders. E-mail the author

NATUURWETENSKAPPE

Energie-oordrag en Stelsel

Bronne van energie en energiesisteme

OPVOEDERS AFDELING

Memorandum

Voorbeeld: Die dinamo moet aan die wiel raak sodat dit kan draai, anders brand die lampie nie. As dit raak, word elektrisiteit opgewek. Hoe vinniger dit draai, hoe meer elektrisiteit word opgewek.

Sisteem: Die mens moet trap om energie te verskaf, die fietsmeganisme moet daar wees om die energie aan die dinamo oor te dra, die dinamo bestaan uit ‘n magneet en drade wat die energie in elektriese energie omskakel, die gloeilampie stel die energie in die vorm van lig vry.

LEERDER AFDELING

Inhoud

AKTIWITEIT: Om die werking van die dinamo as bron van elektriese energie te kan beskryf [LU 1.3, LU 2.3]

  • Vra ‘n maat om sy/haar fiets wat met ‘n dinamo toegerus is klas toe te bring. As julle nie regkom nie, vra die vriendelike eienaar van ‘n fietswinkel in jul omgewing om een aan julle te leen.

Die energie wat met ‘n dinamo opgewek word, word natuurlik gebruik om ‘n gloeilampie te laat brand.

Binne-in die dinamo is daar drade en ‘n magneet. As die fietswiel draai, wek die magneet elektriese energie op in die drade. Die energie vloei deur die stroombaan en laat die gloeilampie brand.

Figure 1
Figure 1 (graphics1.png)

Ondersoek die werking van die dinamo prakties (gebruik 'n fiets wat 'n dinamo het):

1. Trek die dinamo weg van die wiel en draai die wiel.

2. Druk die dinamo teen die wiel en draai die wiel.

3. Draai die wiel stadig.

4. Draai die wiel vinnig.

5. Onthou om deurentyd die gloeilampie dop te hou.

Formuleer jou bevindinge van die praktiese ondersoek in goed beredeneerde sinne.

WERKING VAN ‘N DINAMO (My groep se poging)

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Assessering

Leeruitkomste 1:Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard 1.3: Dit is duidelik wanneer die leerder data evalueer en bevindings kommunikeer.

Leeruitkomste 2:Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer.

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Definition of a lens

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A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

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