General Certificate of Education
Ordinary Level
Physics (SPA) 5059/01, Singapore
2015 Paper 1 Answers
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Question
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Answer
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Remarks
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1
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C
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Anticipated to be a wrongly answered question by the candidature.
These two objects are the smallest and biggest object in the universe.
Therefore, atom is nanometer.
Circumference of earth is Giga.
Therefore, diameter is Mega since A=πr2
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2
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D
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Draw out the vector diagram. That would make it easier to get the
answers.
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3
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D
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4
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D
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TYS Question
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5
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B
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This asks on Newton’s Third Law of Motion
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6
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C
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7
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D
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8
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C
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Inertia resists the change. Since inertia is affected directly by
mass, mass is the answer.
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9
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C
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10
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D
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11
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D
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12
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B
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13
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A
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Principle of Conservation of Energy is tested here.
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14
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B
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15
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A
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16
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B
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17
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A
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Some may be careless and pick D. The question wants students to
identify which is the best heat radiator, not the best heat retainer.
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18
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A
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19
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B
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20
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A
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21
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C
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22
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A
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1 minuteà12
1sà0.2
Therefore, number of complete wave per second =0.2
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23
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C
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24
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C
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25
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A
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TYS Question
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26
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B
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27
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B
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28
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A
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Some may get C, if no regarding the prefixes carefully.
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29
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A
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30
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A
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31
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C
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32
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B
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33
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C
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34
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C
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When light intensity increase, resistance decreases.
Therefore, current increases since R=V/I
Overall V decreases, hence voltmeter reading decreases.
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35
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B
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36
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D
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37
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C
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 |
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38
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D
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39
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A
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Careless mistake made when current is multiplied by 20 instead of
divided by 20.
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40
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D
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Period is taken from the start to the end of the wave.
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