SAINS BAB 8 TINGKATAN 3
Flashcard
•
Science
•
4th Grade
•
Easy
Eliseus Atit
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20 questions
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1.
FLASHCARD QUESTION
Front
Kegunaan radioaktif kecuali: rawatan kanser, mengkaji kadar penyerapan baja, menentukan umur bahan fosil, menambahkan kesuburan tanah.
Back
menambahkan kesuburan tanah
2.
FLASHCARD QUESTION
Front
Elektron bercas
Back
negatif, NEGATIF
3.
FLASHCARD QUESTION
Front
Siapakah saintis yang menemui sinar X?
Back
Wilhelm Roentgen
4.
FLASHCARD QUESTION
Front
Bahan radioaktif ialah bahan dengan nukleus yang _________
Back
tidak stabil
5.
FLASHCARD QUESTION
Front
_____________ ialah masa yang diperlukan untuk bilangan nukleus yang belum mereput berkurang sehingga separuh daripada jumlah asal
Back
separuh hayat, Separuh hayat
6.
FLASHCARD QUESTION
Front
Separuh hayat unsur radioaktif yang berjisim 40 g ialah 2 jam. Tentukan jisim unsur radioaktif yang sudah mereput selepas 6 jam
Back
5g
7.
FLASHCARD QUESTION
Front
Gambarajah berikut merupakan runut bagi sinaran ____________________
Back
alfa, alpha, ALPHA, ALFA
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