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- 1. Multiple Choice
Which of the following is a radioactive substance?
Antara yang berikut,yang manakah adalah bahan radioaktif?
Oxygen/Oksigen
Hydrogen/Hidrogen
Uranium/Uranium
Aluminium/Aluminium
- 2. Multiple Choice
The diagram above shows the effect of electric field on P and R radiation from a radioactive source?
Rajah diatas menunjukkan kesan medan elektrik ke atas sinaran P dan R daripada suatu sumber radioaktif?
P: Alpha ray/Sinaran Alfa R: Beta ray/Sinaran Beta
P: Beta ray/Sinaran Beta R: Alpha ray/Sinaran Alfa
P: Alpha ray/Sinaran Alfa R: Gamma radiation/Sinaran gamma
P: Beta ray/Sinaran Beta R: Gamma radiation/Sinaran gamma
- 3. Multiple Choice
Choose the best answer for the definition of radioactive substance?
Pilih jawapan terbaik bagi definifisi bagi bahan radioaktif?
It is made up of atoms containing an unstable nucleus. This unstable nucleus decays and emits radioactive radiation.
Ia terdiri daripada atom yang mengandungi nukleus yang tidak stabil.Nukleus yang tidak stabil ini akan mereput dan memancarkan sinaran radioaktif.
A process of converting materials into other unstable forms of material
Satu proses pengubahan bahan kepada bentuk bahan yang lain yang tidak stabil
The process of converting 2 atoms together into a charged ion.
Proses perubahan gabungan 2 atom yang bergabung menjadi bentuk ion bercas.
The process of generating oxygen and glucose gas through the decay process.
Proses penghasilan gas oksigen dan glukosa melalui proses pereputan.
- 4. Multiple Choice
Which of the following is not a good example of radioactive material?
Antara yang berikut bukan contoh contoh bahan radioaktif?
Uranium -235/ Uranium -235
Radium/ Radium
Polonium/ Polonium
Ferum/ Ferum
- 5. Multiple Choice
The diagram above shows the structure of an atom. Which part of a sub atom makes it unstable?
Rajah di atas menunjukkan struktur atom. Bahagian sub atom yang manakah menjadikannya tidak stabil?
Electrons/ Elektron
Proton/ Proton
Neutron/Neutron
Nukleus atom@ Nuceon/Nukleus atom@Nukleon
- 6. Multiple Choice
If you are assigned to paste a sticker that has the symbol on it.Which of the materials would you choose to paste on the sticker?
Sekiranya anda memberi tugasan untuk menampal suatu stiker yang mempunyai simbol diatas.Bahan yang manakah akan pilih untuk anda tampalkan stiker tersebut?
Calsium/ Kalsium
Boron /Boron
Cobalt 60/ Kobalt 60
Iodin / Iodin
- 7. Multiple Choice
The diagram above shows the process of changing the radioactive materials Radium-226 to Rodon-222 and Helium -4.What is the most appropriate process in the diagram above?
Rajah diatas menunjukkan proses perubahan bahan radioaktif Radium-226 kepada Rodon-222 dan Helium -4.Namakan proses yan paling tepat pada rajah diatas?
Spontaneos radioactive dacay
Pereputan spontan bahan radioaktif
Photosynthesis
Fotosintesis
Pemvulkanan
Vulcanisation
Belahan dedua
BInary Fission
- 8. Multiple Choice
What is meant by radioactive substance?
Apakah yang dimaksudkan oleh bahan radio-aktif?
An element which may undergo spontaneous decay.
Unsur yang mungkin mengalami pereputan secara spontan.
An element with a very large proton number.
Unsur yang mempunyai nombor proton yang besar.
An element which very flammable and cause explosion.
Unsur yang mudah terbakar dan meletup
An element which poisons to all living things.
Unsur yang beracun kepada semua benda hidup.
- 9. Multiple Choice
Diagram above shows an equation of a decay process of thorium-230 to radium-226 and a radiation X.Which of the following is not true about radiation X?
Rajah diatas menunjukkan persamaan proses pereputan bagi torium-234 kepada radium-230 dan sinaran X.Antara yang berikut, manakah tidak benar tentang sinaran X?
It is positively charged.
Ia bercas positif.
Its particles consist of 2 protons and 2 neutrons.
Zarah-zarahnya terdiri daripada 2 proton dan 2 neutron.
It has the speed of light.
Ia mempunyai halaju cahaya.
It has strong ionising power.
Ia mempunyai kuasa pengionan yang tinggi.
- 10. Multiple Choice
Diagram above shows the penetrating power of radioactive radiation.Identify the radiations X and Y.
Rajah diatas menunjukkan kuasa penembusan sinaran radioaktif.Kenal pastikan sinaran X dan sinaran Y.
Radiation X/Sinaran X:Alpha/Alfa
Radiation Y/Sinaran Y:Beta/Beta
Radiation X/Sinaran X:Alpha/Alfa
Radiation Y/Sinaran Y:Gamma/ Gamma
Radiation X/Sinaran X: Beta/Beta
Radiation Y/Sinaran Y:Gamma/ Gamma
Radiation X/Sinaran X:Beta/Beta
Radiation Y/Sinaran Y:Alpha/Alfa
- 11. Multiple Choice
Which of the following is the use of beta radiation?
Antara yang berikut, manakah kegunaan sinaran beta?
Sterilizes surgical equipment
Mensterilkan peralatan pembedahan
Destroys cancerous cells
Membunuh sel-sel kanser
Prevents creases in synthetic fabrics
Mengelakkan kedutan dalam sintetik fabrik
Detects underground pipe leakage
Mengesan kebocoran paip bawah tanah
- 12. Multiple Choice
Which of the following radioisotopes is used to detect damage of the thyroid gland?
Antara radioisotop yang berikut, manakah digunakan untuk mengesan kerosakan kelenjar tiroid?
Cobalt-60/Kobalt 60
Carbon-14 /Karbon -14
Iodine-131/Iodin-131
Barium-138/Barium-138
- 13. Multiple Choice
Which of the following is not true about the uses of radioisotopes in medical field?
Antara yang berikut, manakah tidak benar tentang kegunaan radioisotop dalam bidang perubatan
Sodium-24 is used to detect the clotting of blood during head injury.
Natrium-24 digunakan untuk mengesan penggumpalan darah semasa kecederaan kepala.
Iodine-131 is used to detect brain tumours.
Iodin-131 digunakan untuk mengesan tumor otak.
Plutonium-238 battery is used in heart pacemakers to stabilize the heartbeat of patience’s heart.
Bateri plutonium-238 digunakan dalam pengatur denyutan untuk menstabilkan degupan jantung pesakit jantung.
Barium-138 is used to detect damage in the thyroid gland.
Barium-138 digunakan untuk mengesan kerosakan kelenjar tiroid.
- 14. Multiple Choice
The age of an ancient artifact can be estimated through a method known as carbon dating. What does this method depend on?
Usia artifak purba boleh dianggar melalui kaedah pentarikhan karbon. Apakah kaedah ini bergantung?
The colour of the artifact
Warna artifak
The mass of the artifact
Jisim artifak
The percentage of carbon-14 remaining in the artifact
Peratus karbon-14 yang tinggal dalam artifak
The amount of carbon-14 absorb by the artifact
Jumlah karbon-14 yang diserap oleh artifak
- 15. Multiple Choice
Why is radioisotope phosphorus-32 added into the fertiliser?
Mengapakah radioisotop fosforus-32 ditambah ke dalam baja?
To determine the uptake of a fertiliser by plant
Untuk menentukan kadar penyerapan baja oleh tumbuhan
To alter plant genes to increase yield and quality.
Untuk mengubah gen tumbuhan untuk meningkatkan hasil dan kualiti.
To increase the resistant of plants towards the pests.
Untuk meningkatkan penentangan tumbuhan terhadap perosak.
To trace the effectiveness of fertiliser on plant
Untuk mengesan keberkesanan baja terhadap tumbuhan
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