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MYE Practical Exam Mark Scheme
Qn
Skills
assessed
Marking scheme
Mark
Mark
ref
1(a)(i)
PDO
Layout
P1
Tabulates temperature and volume of FA 2 added in the table.
Table has correct headers and units.
1
1
PDO
Record
P2
All the volumes are recorded to the nearest 0.05 cm
3
and temperature to 0.1 °C
1
2
(a)(ii)
PDO
Layout
P3
Axes correct way round + correct labels + units + scale.
Sensible linear scale must be chosen so that the plotted points occupy at least half the graph
grid in both x and y directions.
1
3
PDO
Layout
P4
All points correctly plotted to within ±1/2 small square. Checks all points and put ticks if correct.
1
4
PDO
Mani
P5
Graph line must be best fit-lines. Lines should be extrapolated until they cross.
Do not allow mark if clearly anomalous points are included or it the lines do not cross each other
1
5
(a)(iii)
PDO
Mani
P6
Correct reading to within ±1/2 small square of T
maximum
.
Correct calculation of ∆T
maximum
.
Correct reading of V
equivalence
.
1
6
MMO
Quality
M1
M2
Award MR 7 based on the difference,
Δ
T
maximum
, between student’s and supervisor’s Δ
T
maximum
value.
Give
1 mark if this difference is ≤ 0.3 °C
Award MR 8 based on the difference,
V
equivalence
, between student’s and supervisor’s
V
equivalence
value.
Give 1 mark if this difference is ≤ 0.75 cm
3
Shift 1: Jessie 10.75 cm
3
and 5.1 °C, Kelly 10.40 cm
3
and 4.88 °C
Shift 2: Joseph 10.33 cm
3
and 5.3 °C, Russell 10.00 cm
3
and 5.7 °C (Physics)
Shift 3: Jessie 12.40 cm
3
and 4.85 °C (Biology), Russell 12.00 cm
3
and 6.7 °C (Physics)
1
1
7
8

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