Page 580 - MODUL SPEKTRUM FIZIK SPM

(SET 10)

Question Answer Scheme Marks Allocated
(a)(i) MV: Temperature// q 1
(a)(ii) RV: Current// I 1
(a)(iii) CV: Voltage 1
(b)(i) Readings of I
Diagram 1.2: 0.28 A
Diagram 1.3: 0.18 A
Diagram 1.4: 0.12 A
Diagram 1.5: 0.10 A 2
Diagram 1.6: 0.08 A

✔1 : 3 readings correct
✔2 : All readings correct
(b) Tabulation for q, I and 1/I

-1
o
(
q C) I (A) 1/I (A )
10 0.28 3.57
20 0.18 5.56
30 0.12 8.33
40 0.10 10.00 4
50 0.08 12.50

✔1 : All headings for q, I and 1/I correct
✔2 : All units for q, I and 1/I correct
✔3 : All readings of 1/I correct (Accept ecf)
✔4 : All readings of 1/I consistent to 2 d.p
(c) Graph of 1/I against q

✔1 : Labels on both axes correct
✔2 : Units on both axes correct
✔3 : Uniform scale on both axes
✔4 : 3-4 points plotted correctly
✔5 : All 5 points plotted correctly
✔6 : Best fit line is drawn 5
✔7 : Size of graph at least 5 x 4 (10 cm x 8 cm)
(Counted from origin until the furthest point)

5 marks - 7✔
4 marks - 5✔ - 6✔
3 marks - 3✔ - 4✔
2 marks - 2✔
1 mark - 1✔

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