Page 574 - MODUL SPEKTRUM FIZIK SPM

(SET 6)

Question Answer Scheme Marks Allocated
(a)(i) MV: Time of heating// t 1
(a)(ii) RV: Temperature// q// Temperature increase// Dq 1
(a)(iii) CV: Power of immersion heater 1
o
(b) qo = 25 C 1
(c)(i) Readings of q
o
Diagram 1.3: 32 C
o
Diagram 1.4: 39 C
o
Diagram 1.5: 46 C 1
o
Diagram 1.6: 53 C
o
Diagram 1.7: 60 C

✔1 : All readings correct
(c)(ii) Tabulation for t, q and Dq

t (s) q C) Dq C)
(
(
o
o
20 32 7
40 39 14
60 46 21
80 53 28 5
100 60 35

✔1 : All headings for t, q and Dq correct
✔2 : All units for t, q and Dq correct
✔3 : 3 readings of Dq correct

✔4 : All readings of Dq correct (Accept ecf)
✔5 : All readings of q and Dq don’t have
decimal point.
(d) Graph of Dq against t

5

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