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MODUL • Fizik TINGKATAN 5

Teknik Menjawab [Format Kertas 2 : Perbandingan]
Answering Technique [Paper 2 Format : Comparison]

Rajah (a) menunjukkan seorang budak perempuan sedang mengayuh basikal di jalan rata pada waktu malam. Rajah (b) menunjukkan
basikal tersebut dikayuh mendaki bukit yang curam pada waktu malam. Rajah (c) menunjukkan reka bentuk dinamo basikal tersebut.
Diagram (a) shows a girl cycling on flat roads at night. Diagram (b) shows the bike cycled climbing a steep uphill road. Diagram (c) shows
design of the bicycle’s dynamo.

Magnet kekal Pencengkam roda
Permanent Wheel grip
Malap magnet
Dim Teras besi
Iron core
Gegelung dawai
Cerah
Bright Wire coil
Punca bertebat
Insulated source
Jalan rata Jalan mendaki bukit Dinamo (c)
Flat road Climb uphill road Dynamo (c)
(a) (b)

(a) Lengkapkan jadual di bawah dengan membandingkan aspek-aspek yang dinyatakan dalam jadual:
Complete the table below by comparing the aspects mentioned:

Aspek / Aspect Rajah (a) / Diagram (a) Rajah (b) / Diagram (b)
Laju kayuhan basikal Lebih laju Kurang laju UNIT 3
The cycling speed of the bike Higher speed Lower speed
UNIT 3
Kadar pemotongan fluks magnet oleh gegelung dawai dinamo Lebih besar Lebih kecil
The cutting rate of magnetic flux by the coil wire of dynamo Larger Smaller

Keadaan nyalaan mentol Lebih cerah Kurang cerah
Lighting condition of bulb Brighter Dimmer

Arus elektrik yang terhasil Lebih besar Lebih kecil
Current produced Larger Smaller

(b) Hubung kaitkan: / Relate:
(i) laju kayuhan basikal dan keadaan nyalaan mentol. / the cycling speed of bike and the lighting condition of bulb.
Semakin bertambah laju kayuhan basikal, semakin cerah nyalaan mentol.
As the cycling speed of bike increases, the bulb lights up brighter.

(ii) kadar pemotongan fluks magnet oleh gegelung dawai dinamo dan arus elektrik yang terhasil.
the cutting rate of magnetic flux by the coil wire of dynamo and current produced.
Apabila kadar pemotongan fluks magnet oleh gegelung dawai dinamo semakin bertambah, arus elektrik yang
terhasil semakin bertambah.
As the cutting rate of magnetic flux by the coil wire of dynamo increases, the current produced increases.

(c) Berdasarkan jawapan-jawapan anda di (b)(i) dan (b)(ii), deduksikan
Based on your answers in (b)(i) and (b)(ii), deduce

(i) konsep fizik / physics concept: Aruhan elektromagnet / Electromagnetic induction
(ii) hukum fizik / laws of physics: Hukum Lenz / Lenz’s law

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