OCR MEI C4 2013 June — Question 1 2 marks

Exam BoardOCR MEI
ModuleC4 (Core Mathematics 4)
Year2013
SessionJune
Marks2
PaperDownload PDF ↗
Mark schemeDownload PDF ↗
TopicCurve Sketching
TypeOptimization and assignment problems
DifficultyEasy -2.0 This is a straightforward plotting exercise requiring only basic understanding of latitude/longitude coordinates and the definition of sub-solar point. Students simply need to locate two points on a given diagram using standard geographical coordinates—no calculation, problem-solving, or mathematical reasoning required beyond reading coordinates.
The diagram is a copy of Fig. 4. R is a place with latitude \(45°\) north and longitude \(60°\) west. Show the position of R on the diagram. M is the sub-solar point. It is on the Greenwich meridian and the declination of the sun is \(+20°\). Show the position of M on the diagram. [2] \includegraphics{figure_4}
Question 1:
AnswerMarks
1y degrees
90
60
30
x degrees
–180 –150 –120 –90 –60 –30 0 30 60 90 120 150 180
–30
–60
–90
Fig. 4
90
60
30
AnswerMarks Guidance
80 –150 –1 20 –9
–303 0 6
–
60
–
Question 1:
1 | y degrees
90
60
30
x degrees
–180 –150 –120 –90 –60 –30 0 30 60 90 120 150 180
–30
–60
–90
Fig. 4
90
60
30
80 –1 | 50 –1 | 20 –9 | 0 –6 | 0 –3 | 0 0
–30 | 3 | 0 6 | 0 9 | 0 1 | 20 15 | 0 1
–
60
–
The diagram is a copy of Fig. 4.

R is a place with latitude $45°$ north and longitude $60°$ west. Show the position of R on the diagram.

M is the sub-solar point. It is on the Greenwich meridian and the declination of the sun is $+20°$. Show the position of M on the diagram. [2]

\includegraphics{figure_4}

\hfill \mbox{\textit{OCR MEI C4 2013 Q1 [2]}}
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Q1 8 Q1 2 Q2 7 Q2 3 Q3 7 Q3 2 Q4 8 Q4 4 Q5 6 Q5 7 Q6 18 Q7 18