Ujian Bulanan Pertama Sains TING 4
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SEKOLAH MENENGAH KEBANGSAAN TAMAN DESA JAYA
TEST 2 YEAR 2011
SCIENCE
FORM 4
TIME : 1 HOUR
Name :.................................................................... Class:…………….
Section A / Bahagian A
Answer all questions / Jawab semua soalan
1 What is the first step in a scientific investigation?
( Apakah lamgkah pertama dalam penyiasatan saintifik? )
A Carry out the experiment
( Menjalankan eksperimen )
BIdentify the variable( Mengenal pasti pembolehubah )
C Observe a phenomenon
( Memerhati fenomena )
D Write a report
( Menulis laporan )
2 Which of the following is a type of qualitative data?( Antara yang berikut, yang manakah ialah sejenis data kualitatif )
A Height ( Ketinggian )
B Weight ( Berat )
C Age ( Umur )
D Hair colour ( warna rambut )
3 A student should adopt the following scientific attitude when carrying out
an experiment except
( Seorang pelajar hendaklah mempunyai sikap saintifik berikut semasamenjalankan eksperimen kecuali )
A accurate when recording data
( tepat semasa mencatat data )
B systematic in conducting experiment
( sistematik dalam menjalankan eksperimen )
C being self-centered
( pentingkan diri sendiri)
D being fair and just( adil dan saksama )
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4 What is the basic unit of the nervous system ?
( Apakah unit asas bagi sistem saraf ?)
A axon
(akson)
B neurone
(neuron)
C dendrite
( dendrit )
D myelin sheath
( salut myelin )
5 Diagram shows a typical structure of a motor neurone.
( Rajah menunjukkan struktur neuron motor )
Which of the following pairs is correct?
( Antara pasangan berikut,manakah yang benar ?)
Structure Function
A J Transmitting nerve impulses towards the
cell body
(menghantar impuls saraf ke arah badan sel )
B K Transmitting nerve impulses away from the
cell body( menghantar impuls saraf keluar daripada
badan sel )
C L Decreasing the rate of transmission of nerve
impulses.( melambatkan perjalanan impuls saraf )
D M Releasing chemical substances to stimulate
the motor system.
( menghasilkan bahan kimia untuk
merangsang system motor )
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Receptors brain efectors
[ reseptor ] [ otak ] [ efektor ]
6 Diagram shows parts of human nervous system.
Which part controls body balance?
( Rajah menunjukkan bahagian-bahagian pada sistem saraf manusia. Bahagian manakah yang mengawal keseimbangan badan?)
7 Diagram shows the flow of impulse.
Which of the following action is shown by the flow of impulse in diagram
( Manakah tindakan yang ditunjukkan oleh perjalanan impuls pada rajah)
A heartbeat (denyutan jantung )
B reading ( menbaca )
C vomiting ( muntah )
D sneezing ( bersin )
8 Diagram shows the position of the endocrine glands in the human body.( Rajah menunjukkan kedudukan kelenjar-kelenjar endokrin dalam tubuh
manusia )
Which of the glands labelled as A, B, C and D produces a hormone that
controls body growth ?
( Antara kelenjar berlabel A, B, C dan D , yang manakah menghasilkan
hormone yang mengawal pertumbuhan badan )
A
B
C
D
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11 Diagram shows the chromosomes found in a baby skin cells.
( Rajah menunjukkan kromosom yang terdapat dalam sel kulit seorang
bayi.)
Which of the following genetic diseases is the baby suffering from?
( Antara berikut manakah penyakit genetik yang dihidapi oleh bayi
tersebut?)
A Down’s syndrome
(Sindrom Down)
B Albinism
( Albino)
C Colour blindness( Buta warna)
D Turner’s syndrome
(Sindrom Turner )
12 Which of the following A, B, C or D, represents boiling process ?( Antara A, B, C dan D, yang manakah mewakili proses pendidihan ?)
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13 Diagram shows the structure of atom X .
( Rajah menunjukkan struktur atom X )
What is the proton number, the nucleon number and the number of
electron ?
( Apakah nombor proton, nombor nucleon dan bilangan electron )
Protonnumber
Nucleonnumber
The number of electron
A 3 3 4
B 3 4 3
C 4 10 3
D 3 7 3
14 The table shows sub-atoms of four elements.
( Jadual menunjukkan sub-atom bagi empat unsur )
Elements Number of
protons Number of
neutrons Number of
electrons Nucleonnumber
P 6 6 6 12
Q 6 8 6 14
R 7 7 7 14
S 8 8 8 16
Which of the pairs are isotopes ?( Antara pasangan berikut yang manakah merupakan isotop?)
A P and Q
B Q and R
C R and S
D Q and S
Electron
Proton
Neutron
Keys
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15 Which of the following are the importance of scientific investigation to
scientists?( Antara yang berikut, yang manakah merupakan kepentingan
penyiasatan saintifik kepada sainstis? )
I To make inference rationally
( untuk membuat inferens secara rasional )II To develop hypothesis logically
( untuk membentuk hipotesis secara logik )
III To provide report based on knowledge and observation
( untuk memberi laporan berdasarkan pengetahuan dan
pemerhatian)
A I and II only
B I and III onlyC II and III only
D I, II and III only
16 Which of the following variable is changed during an investigation?
( Antara pembolehubah berikut, yang manakah diubah semasa
penyiasatan?)
A Fixed variable / Pembolehubah dimalarkan B Manipulated variable / Pembolehubah dimanipulasikan
C Independent variable / Pembolehubah tak bersandar
D Responding variable / Pembolehubah bergerak balas
17 Alcoholic drinks contain( Minuman beralkohol mengandungi )
A Alkaline / alkali B oxygen / oksigen
C ethanol / etanol
D acid / asid
18 Which of the following factors affect the mind?
( Antara factor berikut, yang manakah mempengaruhi minda? )
I Mental stress / Tekanan Mental II Brain injury / Kecederaan otak
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III Hormonal imbalance in the body / Ketidakseimbangan hormone
dalam badan
A I and II only C II and III only
B I and III only D I, II and III
19 Which of the following are the importance of mitosis?
( Antara yang berikut, yang manakah adalah kepentingan mitosis?)
I To replace old and dead cell
( untuk menggantikan sel yang tua dan telah mati )
II To increase the number of cells to promote growth
( untuk meningkatkan bilangan sel untuk menggalakkan
pertumbuhan )III To produce new cells with genetic material that is identical to the
parent cell
( Untuk menghasilkan sel baru dengan bahan genetik yang sama
dengan sel induk )
A I and II only C II and III only
B I and III only D I, II and III
20 Which of the following caused by gene mutation?
( Antara yang berikut, yang manakah disebabkan oleh mutasi gen?)
I Albinism / Albinisme
II Colour blindness / Buta Warna
III Down’s syndrome / Sindrom down
A I and II only C II and III only
B I and III only D I, II and III
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21 Which of the following is the difference between mitosis and meiosis?
( Antara yang berikut, yang manakah ialah perbezaan antara mitosis dan
meiosis?)
Mitosis Meiosis
A Crossing over occurs Pindah silang berlaku
Crossing over does not occur Pindah silang tidak berlaku
B The cells divide once
Sel membahagi sekali
The cell divide twice
Sel membahagi dua kali
C Variation occurs
Variasi berlaku
No variation occurs
Tiada variasi berlaku
D Occurs in germ cells
Berlaku dalam sel-sel germa
Occurs in somatic cells
Berlaku dalam sel-sel soma
22 The following information shows a tall plant crossed with a pure-breading
dwarf plant.( Maklumat berikut menunjukkan tumbuhan tinggi dikacukkan dengan
tumbuhan kerdil baka tulen )
What is the expected ration of the number of tall plants to the number of dwarf plants in the offspring?
( Berapakah nisbah yang dijangkakan bagi bilangan tumbuhan tinggi
kepada bilangan tumbuhan kerdil bagi anaknya?)
A 1 : 1 C 3 : 1
B 2 : 1 D 1 : 3
23 Atom Y has 15 protons and 16 neutrons. What is the nucleon number of
atom Y?( Atom Y mempunyai 15 proton dan 16 neutron. Berapakah nombor
nucleon bagi atom Y ?)
A 15 C 20
B 16 D 31
Parent : Mm x mm
Induk : Mm x mm
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24 Diagram represent a certain process.
( Rajah mewakili sesuatu proses yang tertentu.)
During the process, the particles
( Semasa proses ini, zarah-zarah)
A gain more kinetic energy
menerima lebih banyak tenaga kinetic
B increase in size
bertambah dalam saiz
C move closer together
bergerak dengan lebih rapat D move in all direction
bergerak dalam semua arah
25 Which of the following actions is controlled by the cerebrum?
( Antara tindakan berikut, yang manakah dikawal oleh serebrum?)
A Writing / menulis
B Sweating / berpeluh C Digesting / menghadamkan makanan
D Heartbeat / denyutan jantung
liquid
cecair
solid
pepejal