keradioaktifan - sains tingkatan 3

Quiz
•
Science
•
1st - 8th Grade
•
Medium
MOHD NOR NOR SERI AIZAT
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wilherm roentgen ialah ahli fizik jerman yang menemukan ____________ secara tidak sengaja.
sinar X
sinar alpha
sinar betta
uranium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antoine Henri Becquerel merupakan ahli fizik perancis merupakan orang pertama yang menemukan suatu sebatian radioaktif iaitu _________________.
sinar alpha
Torium
Uranium
sinar gamma
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Marie dan Pierre Curie berjaya mengestrak dua elemen radioaktif iaitu ______________ dan __________________.
Polonium
Radium
Uranium
Radon
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Yang manakah antara berikut ialah bahan radioaktif. ( 3 jawapan)
Radon-222
Karbon-14
Polonium-209
Natrium-23
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bahan radioaktif mempunyai nukleus atom yang tidak stabil.
betul
salah
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keradioaktifan merujuk kepada proses pereputan secara rawak dan spontan nukleus bahan radioaktif yang tidak stabil menjadi atom yang lebih stabil dengan memancarkan sinaran radioaktif.
betul
salah
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
3 sinaran radioaktif berbahaya dipancarkan semasa pereputan radioaktif , iaitu______________, __________________ dan ___________________.
sinar X
Zarah alfa
Zarah beta
Zarah gamma
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