Page 11 - Modul A+1 Kimia Tingkatan 4

Bidang Isotop Kegunaan
Field Isotope Uses
Arkeologi Karbon-14 Menganggar usia fosil dan artifak (pentarikhan karbon)
Archaeology Carbon-14 age
To estimate the of fossils and artefacts (carbon dating).

Plumbum-210 Menentukan usia lapisan pasir dan tanah sehingga 80 tahun.
Lead-210 To determine the age of sand and earth layers up to 80 years.

BAB 2 Industri Natrium-24 Mengesan kebocoran paip bawah tanah.
Sodium-24
Industry
leakages
To detect the
of underground pipe.
Hidrogen-3 Pengesan untuk mengkaji kumbahan dan sisa buangan cecair.
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Hydrogen-3 As a detector to study the sewage and liquid wastes.
Pengawetan Kobalt-60 Membunuh bakteria dalam makanan tanpa mengubah kualiti
makanan Cobalt-60 makanan.
Food preservation bacteria
To kill in food without changing the quality of food.

Tenaga nuklear Uranium-235 Bahan api dalam reaktor nuklear bagi menjana elektrik .
Nuclear energy Uranium-235 electricity
Fuel in the nuclear reactor to generate .

IMBAS SAYA
Uji Kendiri 2.4

SPM
Soalan Berformat SPM

Kertas 1 Paper 1

1. Antara bahan berikut, yang manakah ialah unsur? Antara bahan berikut, yang manakah adalah gas pada
o
KLON Which of the following substances is an element? TP 1 suhu 40 C?
o
SPM M A Air/ Water Which of the following substances is a gas at 40 C?
SP
B Oksigen/ Oxygen A W
C Gula/ Sugar B X
D Karbon dioksida/ Carbon dioxide C Y
D Z
2. Proses manakah yang berlaku apabila pepejal iodin
dipanaskan? TP 1 4. Rajah 1 menunjukkan graf suhu melawan masa bagi
Which of the process occurred when solid iodine is heated? pemanasan pepejal X dan pepejal Y.
A Pengendapan/ Deposition Diagram 1 shows the graph of temperature against time for
B Pemejalwapan/ Sublimation the heating of solid X and solid Y.
C Penyejatan/ Evaporation
D Kondensasi/ Condensation Suhu (°C)
Temperature (°C)
3. Jadual 1 menunjukkan takat lebur dan takat didih bagi Lengkung Lengkung
empat jenis bahan. TP 2 pemanasan X pemanasan Y
KLON
SPM M Table 1 shows the melting and boiling points of four types of Heating curve X Heating curve Y
SP
substances. R
Bahan Takat lebur/ Takat didih/ Q
Substance Melting point ( C) Boiling point ( C)
o
o
W -157 -9
X -13 55
Y 80 196 Masa (min)
Time (min)
Z 256 300
Rajah/Diagram 1
Jadual/Table 1
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