Section A (Structure Question)
1.Question No. 1:
Give the answer in a
appropriate sensitivity such:
Using Meter Rule as the instrument:
the length of spring
= 10.0 cm (inappropriate answer: 10 cm;
the accuracy of the
meter rule is 0.1 cm)
Using Vernier Caliper as the
instrument:
The length of the
wooden block = 3.00 cm (inappropriate answer: 3.0 cm;
the accuracy of the
meter rule is 0.01 cm)
Using Micrometer Screw Gauge (MSG) as the instrument:
The thickness of a
steel plate = 4.30 mm (inappropriate answer: 4.3 mm;
the accuracy of the
meter rule is 0.01 mm)
2.Variables (3 marks)
Manipulated variable and responding Variable
Students can copy
directly from the question (from the sentence of aim of the
experiment)
Fixed variable
must be in measured
quantity.
Example:
The diameter of
spring (the measured quantity regarding to the spring should
be stated
clearly)
Note:
Avoid
to give more than 1 answer for this question. Any wrong answer will cancel the
correct.
3.Tabulation of Data (5 @ 6 marks)
The answer should
contains:
•Exact
coulumns
•Exact
rows
•Write
all the quantities that has units
•Decimal
points for each coulumn must be consistent
•Accurate
measurement
4.Draw A Graph
A graph should have:
•correct
axis with units
•uniform
scales
•points
that were correctly plot
•the
best straight line
5.Relationship between responding and
manipulated variable
•Directly
proportional - if a graph shows a straight line begin from (0,0)
•Increases
linearly - if a graph shows a straight line but intercept at Y-axis other than
0.
•Decreases
linearly - if a graph shows a straight with a negative value of gradient of the
graph
PRECAUTIONARY STEPS FOR INVESTIGATIVE EXPERIMENTS:
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