

Science Revision Form 2
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Science
•
8th Grade
•
Hard
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5 Slides • 17 Questions
1
Science Revision Form 2

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3
Multiple Choice
The information below shows the characteristics of an objects in a galaxy known as the Milky Way.
Maklumat di bawah menunjukkan ciri-ciri objek di dalam galaksi dikenali sebagai Bima Sakti.
109 times the diameter of the Earth
109 kali ganda diameter Bumi
About 1/4 the density to the Earth
Sekitar 1/4 ketumpatan Bumi
Its surface temperature ranges from 5000°C to 6000°C
Suhu permukaannya adalah antara 5000°C ke 6000°C
The objects is...
Objek ini adalah...
Mars
Marikh
the Sun
Matahari
a star
bintang
Jupiter
Musytari
4
Multiple Choice
Which of the following statements about our galaxy, the Milky Way are true?
Antara pernyataan berikut, yang manakah benar tentang galaksi kita, Bima Sakti?
I The Milky Way is a spiral galaxy.
Bima Sakti ialah galaksi berpilin.
II The Milky Way resembles a disc with a thicker centre.
Bima Sakti menyerupai cakera dengan pusat yang lebih tebal.
III The Milky Way is about 10 000 light years in length.
Panjang Bima Sakti adalah kira-kira 10 000 tahun cahaya.
I dan II
I dan III
II dan III
i, II dan III
5
Galaksi Bima Sakti berbentuk lingkaran. Diameter Bima Sakti adalah kira- kira 100 000 tahun cahaya. Bima Sakti mempunyai pusat yang tebal.
6
Multiple Choice
Which of the following statements regarding the Sun is not true?
Antara pernyataan yang berikut, yang manakah tidak benar mengenai matahari?
The Sun is considered as a star.
Matahari merupakan satu bintang.
The Sun is known as neutron star.
Matahari dikenali sebagai bintang neutron
The Sun acts as the centre of the Solar System.
Matahari bertindak sebagai pusat Sistem Solar.
The Sun acts as the centre of the Solar System.
Matahari bertindak sebagai pusat Sistem Solar.
7
Multiple Choice
Which of the following are types of stars?
Antara berikut, yang manakah merupakan jenis bagi bintang?
I Red giant
Raksasa merah
II Corona
Korona
III White dwarf
Kerdil putih
I dan II
I dan III
II dan III
I, II dan III
8
Multiple Choice
P - A hot glowing gas ball is formed.
Bebola gas bercahaya yang panas terbentuk.
Q - Nuclear fusion produces nuclear energy. Pelakuran nuklear menghasilkan tenaga nuklear.
R - Hydrogen gas and dust particles are pulled together under gravitational force.
Gas hidrogen dan zarah-zarah debu ditarik bersama di bawah daya graviti.
S - Strong attractive forces raise the temperature and pressure in the centre of the nebula.
Daya tarikan yang kuat menaikkan suhu dan tekanan di pusat nebula.
The information above describes the steps in the formation of stars. The correct sequence for the formation of stars is...
Maklumat di atas menghuraikan langkah-langkah dalam pembentukan bintang. Urutan yang betul bagi pembentukan bintang itu ialah...
Q → P → S → R.
S → Q → R → P.
R → S → Q → P.
P → Q → R → S.
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Ingat proses kelahiran bintang. Ia bermula dengan zarah- zarah nebula (bebola ) ditarik bersama yang disebabkan oleh tarikan graviti dan berakhir dengan pembentukan bintang baharu apabila cahaya dan haba dibebaskan.
10
Multiple Choice
Which of the following is true about the Sun?
Antara berikut, yang manakah benar tentang Matahari?
Its atmosphere consists of sunspots.
Atmosfera matahari terdiri daripada tompok-tompok matahari.
It is a giant star.
Matahari merupakan sebuah bintang raksasa.
It is situated in the Milky Way.
Matahari terletak dalam Bima Sakti.
Its main constituent is helium gas.
Kandungan utama Matahari ialah gas helium.
11
Multiple Choice
A star is said to be dying when...
Sebutir bintang dikatakan mati apabila...
its size is getting smaller.
saiznya menjadi semakin kecil.
its colour has changed from blue to yellow.
warnanya telah berubah dari biru kepada kuning.
its surface temperature has dropped to 5000oC.
suhu permukaannya jatuh ke 5000oC.
the process of nuclear fusion in its core has been completed.
proses pelakuran nukleus dalam terasnya telah sempurna.
12
Bintang dikatakan mati apabila semua gas hidrogen habis digunakan untuk tindak balas nuklear (pelakuran nukleus).
13
Multiple Choice
X, Y and Z in the information below are stars with different temperature.
X, Y dan Z dalam maklumat di bawah merupakan bintang yang mempunyai perbezaan suhu.
X Has a lower temperature
Mempunyai suhu yang rendah
Y Has a medium temperature
Mempunyai suhu yang sederhana
Z Has a higher temperature
Mempunyai suhu yang tinggi
In which of the following are their colour correct?
Antara berikut yang manakah warnanya yang tepat?
X Kuning
Y Merah
Z Biru
X Biru
Y Kuning
Z Merah
X Merah
Y Kuning
Z Biru
X Biru
Y Merah
Z Kuning
14
Multiple Choice
What are the criteria to clarify stars?
Apakah kriteria untuk menjelaskan bintang?
I Colour and surface temperature.
Warna dan suhu permukaan.
II Size and distance.
Saiz dan jarak.
III Shape and amount of nitrogen.
Bentuk dan jumlah nitrogen.
IV Brightness and amount of oxygen.
Kecerahan dan jumlah oksigen.
I dan II
I dan III
II dan III
I, II dan III
15
Multiple Choice
Which of the following is not a stage in the death of a medium sized star?
Antara berikut, yang manakah bukan peringkat dalam kematian bintang bersaiz sederhana?
Red giant
Raksasa merah
White dwarf
Kerdil putih
Black dwarf
Kerdil hitam
Nebula
Nebula
16
Multiple Choice
The following statements about the Universe are correct except...
Pernyataan berikut tentang Alam Semesta adalah betul, kecuali...
the Universe began with a big explosion called the Big Bang.
Alam Semesta bermula dengan letupan besar yang dipanggil Letupan Besar.
the Universe consists of only a few big galaxies.
Alam Semesta terdiri daripada beberapa galaksi besar sahaja.
scientists believe that the Universe is still expanding.
ahli sains percaya bahawa Alam Semesta masih berkembang.
the Universe is a vast massive space without boundaries.
Alam Semesta ialah satu ruang besar yang luas tanpa sempadan.
17
Multiple Choice
The following is the sequence in the death of two stars :
Berikut ialah urutan kematian bagi dua bintang :
• X → Red super giant → Supernova → Neutron star
X → Super raksasa merah → Supernova → Bintang neutron
• Y → Red super giant → Supernova → Black hole
Y → Super raksasa merah → Supernova → Lohong hitam
Which of the following is the correct mass of the stars X and Y?
Antara berikut, yang manakah jisim yang betul bagi bintang X dan Y itu?
A
B
C
D
18
Multiple Choice
Which of the following describes stars incorrectly?
Antara yang berikut, yang manakah tidak betul menghuraikan tentang bintang?
Stars are spherical in shape.
Bintang berbentuk sfera.
Stars are able to release light and heat energy by their own.
Bintang boleh menghasilkan tenaga cahaya dan tenaga haba.
Stars produce energy by combining the hydrogen and the helium gases.
Bintang boleh menghasilkan tenaga dengan menggabungkan gas-gas hidrogen dan helium.
Stars are found in the galaxies.
Bintang boleh didapati di dalam galaksi.
19
Multiple Choice
The following are the characteristic of an object in space:
Berikut adalah ciri-ciri suatu objek di angkasa lepas:
• It's gravity is so strong that even light does not escape from it
Gravitinya sangat kuat sehingga cahaya tidak melepasinya
• It is formed from a collapsed star bigger than the Sun
Terbentuk daripada bintang runtuh yang lebih besar daripada Matahari
• It is the remains of the core from a supernova
Adalah tinggalan teras daripada supernova
The object is a...
Objek itu ialah...
white dwarf.
kerdil putih.
black hole.
lohong hitam.
brown dwarf.
kerdil perang.
pulsar.
pulsar.
20
Multiple Choice
What is the properties of the galaxy?
Apakah ciri galaksi itu?
Irregular shapes
Bentuk tidak tetap
Very large
Sangat besar
Cannot form new stars
Tidak boleh membentuk bintang baharu
Do not contains young star
Tidak mengandungi bintang muda
21
Multiple Choice
What is the main nuclear fuel of small stars?
Apakah bahan api nuklear utama bagi bintang kecil?
Helium
Helium
Hydrogen
Hidrogen
Oxygen
Oksigen
Magnesium
Magnesium
22
Multiple Choice
What is the main nuclear fuel of our Sun?
Apakah bahan api nuklear utama bagi Matahari?
Oxygen
Oksigen
Hydrogen
Hidrogen
Nitrogen
Nitrogen
Science Revision Form 2

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