Page 582 - MODUL SPEKTRUM FIZIK SPM

(c) Tabulation for N, Ii and I

N Ii (µA) I (µA)
40 16 17
60 24 25
80 32 33
100 40 41
120 48 49

✔1 : All headings and units for N, Ii and I correct 2
✔2 : All readings of Ii and I don’t have d.p
(d) Graph of I against N

5

✔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
✔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✔
(e) Relationship between I and N

I is directly proportional to N 1

(Accept “increases linearly” based on student’s
graph)

581