PHYSICS 3 TRIAL SPM SBP 7 July 2017 Marking Scheme 1
PENTAKSIRAN DIAGNOSTIK AKADEMIK (FIZIK KERTAS 3)
SBP 2017
Marking Scheme Paper 3 (4531/3)
Question
1
(a)(i)
Answer
Mark
Manipulated variable = Temperature // θ
1
(ii)
Responding variable =
Length of air column // x
1
(iii)
Constant variable
of air
Cross sectional area of capillary tube// Mass
(b) (i)
To produce dry air
=
// atmospheric pressure
(ii)
x = 2.0, 3.7, 5.2, 6.7, 8.3, 10.0
All correct: 2 marks
At least 4 correct: 1 mark
(iii)
θ / 0C
0
20
40
60
80
100
1
1
2
x / cm
2.0
3.7
5.2
6.7
8.3
10.0
3
1 mark – 3 columns for θ and x
1 mark – correct units for each θ and x
1 mark – all values of θ are consistent 1 d.p
(c)
Draw the graph of θ against x.
A - Label y-axis and x-axis correctly
B
- States the unit at the axis correctly
C
- Both axes with the even and uniform scale
D
- 6 points correctly plotted:
5
- at least 3 points correctly plotted
(d)
E
- a smooth best straight line
F
- minimum size of the graph is 5 x 4 squares of 2 cm x 2 cm.
7 - 5 marks
x is linearly increase to θ
1
Total Mark
Question
(e)
Answer
The position of the eye must be perpendicular to the scale reading of
ruler/thermometer//
Repeat the experiment to get the average value
Mark
Total Mark
1
Total
Question
2
(a)(i)
(ii)
Answer
16
Mark
Total Mark
R is directly proportional to L
1
1
Extrapolate the graph
1
Show on the graph when R= 2.75 Ω,
1
L = 75 cm
1
3
The gradient of graph R against L
(iii)
Draw a big triangle (5 X 4 blocks)
1
q=
1
2.5 – 0.0 Ω
70.0 – 0.0 cm
3
1
(answ
er and
correc
t unit)
1
= 0.0357 Ω cm-1
Use R/L = 0.0357 Ω cm-1
(b)(i)
3
= 0.79 (0.046)2 (0.0357)
1
= 0.0000597 Ω cm
1
(ii)
Decreases
1
1
(c)
The position of the eye is perpendicular to the scale of metre rule.
1
1
Total
16
Question
3
(a)
(b)
(c)(i)
(ii)
(iii)
Answer
Mark
Total Mark
State a suitable inference
The extension of spring depends on force
State a relevant hypothesis
The greater the force, the greater the extension of the spring
State the aim of experiment
To investigate the relationship between the force and the extension of
the spring
State the manipulated variable and the responding variable
Manipulated : force
Responding : extension of spring
State ONE variable that kept constant
Diameter of spring, diameter of coil, spring constant
Complete list of apparatus and materials
Spring, slotted weight, pin, retort stand, metre rule
Arrangement of apparatus :
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
(iv)
(v)
State the method of controlling the manipulated variable
1. Initial length of spring, l0 is measured and recorded.
2. A slotted weight of mass, m = 50 g is added at the end of the spring.
State the method of measuring the responding variable
3. The new length of the spring, l is measured and extension, x is
calculated
by using formula x = l – l0
Repeat the experiment at least 4 times
4. The experiment is repeated by using mass of = 100 g, 150 g, 200 g
and
250 g
1
1
Question
Answer
Tabulation of data:
m/g
Mark
Total Mark
1
1
1
1
12
12
Mark
Total Mark
x/cm
(vi)
Analyze the data.
x/cm
(vii)
m/g
Total marks
Question
Answer
4
(a)
State a suitable inference
Angle of reflection depends on the angle of incidence
1
1
(b)
State a relevant hypothesis
Angle of reflection increases as the angle of incidence increases
1
1
1
1
1
1
3
(c) (i) State the aim of experiment
To investigate the relationship between angle of reflection and the
angle of incidence
(ii)
State the manipulated variable and the responding variable
Manipulated variable: angle of incidence
Responding variable : angle of reflection
State ONE variable that kept constant
Fixed variable : Angle between plane and mirror // focal length(sila
rujuk*)
.
1
(iii)
Complete list of apparatus and materials
plane mirror, ray box, meter rule, white paper, protractor
1
1
(iv)
Arrangement of apparatus :
1
1
Question
(v)
Answer
State the method of controlling the manipulated variable
1. The set-up of the apparatus is as shown in figure above.
2. Start the experiment with angle of incidence, i = 20o . A ray of light
from the ray box is directed to the plane mirror.
State the method of measuring the responding variable
3. Record the angle of reflection, r which is measured by using a
protractor.
Repeat the experiment at least 4 times
4. Repeat the experiment by using i = 30o, 40o, 50o, and 60o.
(vi)
(viii)
Angle of incidence, i
20o
30o
40o,
50o,
Angle of reflection, r o
60 .
Mark
1
1
3
1
1
1
1
1
Angle of incidence, i
TOTAL
Total Mark
12
*catatan
SBP 2017
Marking Scheme Paper 3 (4531/3)
Question
1
(a)(i)
Answer
Mark
Manipulated variable = Temperature // θ
1
(ii)
Responding variable =
Length of air column // x
1
(iii)
Constant variable
of air
Cross sectional area of capillary tube// Mass
(b) (i)
To produce dry air
=
// atmospheric pressure
(ii)
x = 2.0, 3.7, 5.2, 6.7, 8.3, 10.0
All correct: 2 marks
At least 4 correct: 1 mark
(iii)
θ / 0C
0
20
40
60
80
100
1
1
2
x / cm
2.0
3.7
5.2
6.7
8.3
10.0
3
1 mark – 3 columns for θ and x
1 mark – correct units for each θ and x
1 mark – all values of θ are consistent 1 d.p
(c)
Draw the graph of θ against x.
A - Label y-axis and x-axis correctly
B
- States the unit at the axis correctly
C
- Both axes with the even and uniform scale
D
- 6 points correctly plotted:
5
- at least 3 points correctly plotted
(d)
E
- a smooth best straight line
F
- minimum size of the graph is 5 x 4 squares of 2 cm x 2 cm.
7 - 5 marks
x is linearly increase to θ
1
Total Mark
Question
(e)
Answer
The position of the eye must be perpendicular to the scale reading of
ruler/thermometer//
Repeat the experiment to get the average value
Mark
Total Mark
1
Total
Question
2
(a)(i)
(ii)
Answer
16
Mark
Total Mark
R is directly proportional to L
1
1
Extrapolate the graph
1
Show on the graph when R= 2.75 Ω,
1
L = 75 cm
1
3
The gradient of graph R against L
(iii)
Draw a big triangle (5 X 4 blocks)
1
q=
1
2.5 – 0.0 Ω
70.0 – 0.0 cm
3
1
(answ
er and
correc
t unit)
1
= 0.0357 Ω cm-1
Use R/L = 0.0357 Ω cm-1
(b)(i)
3
= 0.79 (0.046)2 (0.0357)
1
= 0.0000597 Ω cm
1
(ii)
Decreases
1
1
(c)
The position of the eye is perpendicular to the scale of metre rule.
1
1
Total
16
Question
3
(a)
(b)
(c)(i)
(ii)
(iii)
Answer
Mark
Total Mark
State a suitable inference
The extension of spring depends on force
State a relevant hypothesis
The greater the force, the greater the extension of the spring
State the aim of experiment
To investigate the relationship between the force and the extension of
the spring
State the manipulated variable and the responding variable
Manipulated : force
Responding : extension of spring
State ONE variable that kept constant
Diameter of spring, diameter of coil, spring constant
Complete list of apparatus and materials
Spring, slotted weight, pin, retort stand, metre rule
Arrangement of apparatus :
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
(iv)
(v)
State the method of controlling the manipulated variable
1. Initial length of spring, l0 is measured and recorded.
2. A slotted weight of mass, m = 50 g is added at the end of the spring.
State the method of measuring the responding variable
3. The new length of the spring, l is measured and extension, x is
calculated
by using formula x = l – l0
Repeat the experiment at least 4 times
4. The experiment is repeated by using mass of = 100 g, 150 g, 200 g
and
250 g
1
1
Question
Answer
Tabulation of data:
m/g
Mark
Total Mark
1
1
1
1
12
12
Mark
Total Mark
x/cm
(vi)
Analyze the data.
x/cm
(vii)
m/g
Total marks
Question
Answer
4
(a)
State a suitable inference
Angle of reflection depends on the angle of incidence
1
1
(b)
State a relevant hypothesis
Angle of reflection increases as the angle of incidence increases
1
1
1
1
1
1
3
(c) (i) State the aim of experiment
To investigate the relationship between angle of reflection and the
angle of incidence
(ii)
State the manipulated variable and the responding variable
Manipulated variable: angle of incidence
Responding variable : angle of reflection
State ONE variable that kept constant
Fixed variable : Angle between plane and mirror // focal length(sila
rujuk*)
.
1
(iii)
Complete list of apparatus and materials
plane mirror, ray box, meter rule, white paper, protractor
1
1
(iv)
Arrangement of apparatus :
1
1
Question
(v)
Answer
State the method of controlling the manipulated variable
1. The set-up of the apparatus is as shown in figure above.
2. Start the experiment with angle of incidence, i = 20o . A ray of light
from the ray box is directed to the plane mirror.
State the method of measuring the responding variable
3. Record the angle of reflection, r which is measured by using a
protractor.
Repeat the experiment at least 4 times
4. Repeat the experiment by using i = 30o, 40o, 50o, and 60o.
(vi)
(viii)
Angle of incidence, i
20o
30o
40o,
50o,
Angle of reflection, r o
60 .
Mark
1
1
3
1
1
1
1
1
Angle of incidence, i
TOTAL
Total Mark
12
*catatan