Page 568 - MODUL SPEKTRUM FIZIK SPM

(b)(iv) Tabulation for m, β, θ and tan θ
o
o
m (g) β ( ) θ ( ) tan θ
5.0 71 19 0.344
10.0 55 35 0.700
15.0 44 46 1.036
20.0 36 54 1.376 3
25.0 30 60 1.732

✔1 : All headings for m, β, θ and tan θ correct
✔2 : All units for m, β, θ and tan θ correct
✔3 : All readings of tan θ consistent to 3 d.p
(c) Graph of tan θ against m

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✔
(d) Relationship between tan θ and m
tan θ is directly proportional to m 1

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

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