3
SULIT
55/2
Sains
Kertas 2
Mei20091 jam
PEJABAT PELAJARAN DAERAH PASIR GUDANGPEPERIKSAAN PERTENGAHAN
TAHUN
TINGKATAN 1
2009
SAINS
Kertas 2
Satu jam tiga puluh minit
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
________________________________________________________________________
Kertas soalan ini mengandungi 14 halaman bercetak
INFORMATION FOR CANDIDATES
1. This question paper consists of two sections: Section A and
Section B .
2. Write your answers in the spaces provided in the question
paper.
3. Show your working, it may help you to get marks.
4. If you wish to cancel any answer, neatly cross out the
answer.
5. The diagrams in the questions provided are not drawn to scale
unless stated.
6. Marks allocated for each question or part question are shown
in brackets.
7. The time suggested to complete Section A is 60 minutes and
Section B is 30
minutes.
8. You may use a non-programmable scientific calculator.
9. Hand in all your answer sheets at the end of the
examination
Section A
( 40 marks )
Answer all questions.
The time suggested to complete this section is 60 minutes.
1. Diagram 1 shows three laboratory apparatus.
(a) Name the apparatus(i)
P:_____________________________________
(ii) Q;_____________________________________
(iii) R:_____________________________________
( 3 marks )
(b) Which apparatus do you use to measure(i) exactly 25 cm3 of
alcohol:_____________________________________
(ii) volume of ;liquid up
;_____________________________________
( 2 marks )
(c) State the use of apparatus Q.
_____________________________________________________________________
_____________________________________________________________________
( 1 mark )2. Diagram 2 shows the measuring of the diameters of a
beaker using two measuring tools, X and
Y.
a) Name the tools shown in the diagram.
i) X : _______________________
ii) Y : _______________________
( 2 marks )b) Identify the suitable tool (X or Y) to measure the
following in the diagram.
i) Internal diameter of the beaker : ______________________
ii) External diameter of the beaker : ______________________ ( 2
marks )c) i) The internal diameter of the beaker is
_______________________ cm.
ii) The external diameter of the beaker is
______________________ cm
( 2 marks )
3. The figure shows an animal cell.
a) Name the parts labeled P, Q and R.
P : _____________________
Q : _____________________
R :______________________
( 3 marks )
b) State the functions of the parts P, Q and R.
P
:____________________________________________________________________
Q :
___________________________________________________________________
( 2 marks )
c ) The table below shows the differences between the animal
cell and the plant cell.
Complete the table correctly.
Structure CharacteristicsAnimal cellPlant cell
ChloroplastAbsent
ShapeFixed
( 2 marks )
4. Diagram 3 shows pictures of three states of matter.
(a) Based on Diagram 3, label the states of matter for each of
the pictures by using the following words.
(3 marks)
(b) Based on Diagram 3, draw a two-dimensional diagram to show
the arrangement of particles in each state of matter.
(i) (ii) (iii)
(3 marks)
(c) Compare the movement of particles in each state of
matter.
______________________________________________________________________________________________________________________________________
(2 marks)
5. Diagram 4 shows the positions of ethanol, mercury and pure
water when poured into a gas jar simultaneously. The layers formed
were labeled as X, Y and Z. M and N are two other substances that
were added into the same jar.
Table 1 shows the densities of ethanol, mercury and pure
water.
SubstanceDensity / g cm -3
Ethanol0.79
Mercury13.6
Pure water1.0
TABLE 1
(a) Define density.
___________________________________________________________
___________________________________________________________
( 1 marks )
(b) Based on the data in Table 1, identity these substances. (i)
X : __________________________________________________
(ii) Y : __________________________________________________
(iii) Z : __________________________________________________
( 3 marks )
(c) Arrange M, N, X, Y and Z in descending order of density.
___________________________________________________________
( 1 marks )
(d) Name two technological advances that make use of the idea of
density.
1. _________________________________________________________
2. _________________________________________________________
( 2 marks )6. Diagram 5 shows a submarine that floats and sinks
in sea water.
DIAGRAM 5 (a) Name part X that is found in a submarine
_____________________________________________________________
( 1 marks )
(b) (i)State what happens when X is filled with sea water.
__________________________________________________________
__________________________________________________________
( 2 marks )
(ii) Does the density increase or decrease in 6 (b) (i) ?
__________________________________________________________
( 1 marks ) (c) What happens to the submarine when X is emptied
?
_____________________________________________________________
_____________________________________________________________
( 1 marks ) (d) A submarine works on the concept of density.
What is the principle used for
a hot air balloon ?
_____________________________________________________________
( 1 marks )Section B
( 20 marks )
Answer all questions.
The time suggested to complete this section is 30 minutes.
7. The diagram 6 shows several organisms P, Q, R, S and T.
QR
S T(a) State one characteristic of any four of the organisms P,
Q, R, S and T. P :
________________________________________________________
Q : ________________________________________________________
R : ________________________________________________________
S : ________________________________________________________
T : ________________________________________________________
( 4 marks )
(b) Classify organisms P, Q, R, S and T into two groups based on
common
characteristics. Name the organisms belonging to each group.
Common Characteristics
Organism ( 4 marks )8. Diagram 7 shows the pendulum
experiment.
The pendulum bob is displaced and it swings. The time taken for
the pendulum to
make 20 complete swings is recorded in Table 2.
Length of pendulum,
(cm)Time taken for 20 oscillations (s)Time taken for 1
oscillations, T (s)
3022.4
4028.6
5033.8
6036.8
7038.8
TABLE 2(a) Complete Table 2 above by filling in the correct
values of T.
(2 marks)(b) Suggest a suitable
hypothesis.____________________________________________________________
(1 marks)
(c) State the variables of the experiment.
(i) Manipulated variable : _________________________________
(ii) Responding variable : _________________________________
(iii) Constant variable : _________________________________
(3 marks) (d) Draw the graph of T against l in the graph paper
provided below.
( 3 marks )
(e) What is the inference of the experiment?
____________________________________________________________
(1 marks)
(f) What is the time taken for one oscillation if the length of
pendulum is 45
cm?
____________________________________________________________ (2
marks)
Solid Gas Liquid
Diagram 2
P,Q,R,S and T
P
String
Retort
stand
Diagram 7
Tingkatan:
Nama:
EMBED Word.Picture.8
EMBED Word.Picture.8
Kod PemeriksaBahagianSoalanMarkah
PenuhMarkah
DiperolehA162637485766B78812Jumlah60
1.Tuliskan nama dan tingkatan anda pada ruang yang
disediakan.
2.Kertas soalan ini adalah dalam bahasa Inggeris
sepenuhnya..
3.Calon dikehendaki membaca maklumat di halaman 2 atau halaman
3
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