Fairview International School
(SJ) S2Q4 AY2122 M3 Science FA
Subject
Grade
Points
Sciences
Year 3
B 12
Duration
C 24
65 mins
Section 1
A group of MYP students found out that when the temperature of the computer increases, the
responses of the laptop start slowing down or some errors will pop out.
Computer Error
Video 1
Insane Computer Error
00:00/01:11
They suspect the temperature could be one of the major factors that affect the resistance of the
circuit and this would impact the rate of responses of the laptop. Hence, the students decided to
conduct an experiment about how the temperature of the wire affects the resistance.
Page 1 of 7
Q1 Based on the experiment above, state a question that could be investigated. (Criterion
B1
Bii; Level 1-2) [1]
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Students have prepared thermometer, voltmeter, ammeter, heating coil and ice to perform the
experiment. The experiment set-up is shown below.
Note: Thermistor is is a type of resistor whose resistance is strongly dependent on temperature.
Page 2 of 7
Q2 State the independent variable in the experiment and outline how the independent
B3
variable can be manipulated. [3](Criterion B ii; Level 1-2; 3-4)
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Q3 State the dependent variable in the experiment and outline how the dependent variable
B4
can be measured. [4](Criterion B ii; Level 1-2; 3-4)
Hint: Remember the formula of Ohm's law.
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Q4 State two control variables in the experiment and outline how the controlled variables
B4
can be kept constant throughout the experiment. [4]
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Q5 Suggest the method could be improved to obtain more reliable results.(Criterion C v;
C3
Level 5-6) [3]
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Page 3 of 7
Students scribbled the collected data below.
Table 1: Scribbled data
0 °C
2.65 Ω
40 °C
2.95 Ω
20 °C
2.9 Ω
100°C
3.45 Ω
80°C
3.30 Ω
Q6 Ali faced the challenges to interpret the result by using the table above. Suggest the
C2
reason why Ali feels so. (Criterion C v; Level 5-6) [2]
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Page 4 of 7
Q7 Organised table 1 according to the proper manner. [Cii 3-4,5M]
C5
Add text answer
Page 5 of 7
Q8 Plot a line graph by using table 1. (Hint: The data should be arranged in ascending
C6
order)(Criterion Ci; Level 5-6) [6]
#22194D
R
34
G
25
B
77
Add text answer
Page 6 of 7
Q9 One of the students has suggested the following hypothesis.
C2
“Increasing of temperature will decrease the resistance of the circuit”
Do you accept or reject the hypothesis? Discuss your decision based on the result
obtained.
(Ciii,Level 7-8,2M)
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Q10Suggest the extension of this experiment and outline the new hypothesis. In your
C6
answer, include the following.
Research Question
Independent variable
Dependent variable
2 Constant variables
Hypothesis
(Criterion Cv; Level 7-8) [6]
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Page 7 of 7