Page 578 - MODUL SPEKTRUM FIZIK SPM

(d) Graph of x against l

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 x and l

x is directly proportional to l 1

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

(SET 9)

Question Answer Scheme Marks Allocated
(a)(i) MV: Height of air inside the tube// h 1
(a)(ii) RV: Length of one wave// d// period// T// 1
frequency// f
(a)(iii) CV: Amplitude of sound 1
(b) Tabulation for h, d, T and f

h (cm) d (cm) T (s) f (Hz)
10.0 2.4 0.12 8.33
15.0 2.6 0.13 7.69

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