Page 140 - Physics Form 5 KSSM_Neat

Self-Reflection SCAN ME
Self-Reflection
SCAN ME
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1. New things I have learnt in the chapter on ‘Electricity’ are Self-Reflection
✎ . https://bit.ly/3jfv9N1

2. The most interesting thing I have learnt in this chapter is
KEMENTERIAN PENDIDIKAN MALAYSIA
✎ .
3. The things I still do not fully understand are ✎ .

4. My performance in this chapter.
Poor 1 2 3 4 5 Very good

5. I need to ✎ to improve my performance in this chapter.

Summative Practice
https://bit.ly/3guA7nn
1. Figure 1 shows a filament lamp. Why does a coiled filament
produce a brighter light?

Coiled filament
Figure 1

2. Figure 2 shows a circuit with three bulbs, X, Y and Z
with a resistance of 3 W each. S 1 6 V

(a) If switches S , S and S are closed, calculate:
1
3
2
(i) the effective resistance in the circuit S 2 Y
(ii) the current indicated by the ammeter A
(iii) the potential difference across bulb X X
(b) Compare the brightness of light bulbs X, Y and Z
when switches S , S and S are closed. S 3 Z
2
3
1
(c) If only switches S and S are closed, calculate:
2
1
(i) the effective resistance in the circuit Figure 2
(ii) the current indicated by the ammeter
(iii) the potential difference across bulb X
(d) Compare the brightness of light bulbs X, Y and Z when only switches S and S are closed.
1 2
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