PHYSICS FIZIK KSSM F5: CHAPTER 6.1
Quiz
•
Physics
•
11th - 12th Grade
•
Practice Problem
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Medium
UMAIR MOHAMAD
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“A process in which an unstable nucleus becomes more stable by emitting radioactive radiation.” The following statement is the definition of
“Proses nukleus tidak stabil menjadi nukleus stabil dengan memancarkan sinaran radioaktif.” Pernyataan berikut adalah definisi bagi
Half life
Separuh hayat
Radioactive decay
Reputan radioaktif
Nuclear fission
Pembelahan nukleus
Nuclear fusion
Pelakuran nukleus
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
State the radioactive radiation that can be produced from radioactive decay.
Nyatakan sinaran radioaktif yang dapat dihasilkan daripada reputan radioaktif.
Alpha particle
Zarah alpha
Zeta rays
Sinaran zeta
Beta particle
Zarah beta
Gamma rays
Sinaran gama
Delta particle
Zarah delta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“The time taken for a sample of radioactive nuclei to decay to half of its initial number.” The following statement refers to
“Masa yang diambil untuk separuh daripada bilangan asal nukleus radioaktif bagi suatu sampel radioaktif mereput.” Pernyataan berikut merujuk kepada
Semi life
Setengah hayat
Half life
Separuh hayat
Radioactive decay
Reputan radioaktif
Radioactivity
Keradioaktifan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sample of radioactive material stored in the laboratory has an initial activity of 480 s–1. If its half-life is 4.5 minutes, how much is its activity after 27 minutes?
Suatu sampel bahan radioaktif yang disimpan di dalam makmal mempunyai kereaktifan awal 480 s–1. Jika separuh hayatnya ialah 4.5 minit, berapakah keaktifannya selepas 27 minit?
30 s-1
15 s-1
7.50 s-1
3.75 s-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A radioactive material stored in the laboratory has a half-life of 7 days. Calculate the number of days taken for the activity of a sample of radioactive material to reduce by 75% of its initial activity.
Suatu bahan radioaktif yang disimpan di dalam makmal mempunyai separuh hayat 7 hari. Hitungkan bilangan hari yang diambil untuk keaktifan bahan radioaktif menurun sebanyak 75% daripada keaktifan asalnya.
28 days
28 hari
21 days
21 hari
14 days
14 hari
7 days
7 hari
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Within a period of 60 days, ⅞ of the original number of radioactive atoms in a sample has decayed. What is the half-life of the sample?
Dalam tempoh 60 hari, ⅞ bilangan atom radioaktif asal suatu sampel telah pun mereput. Apakah nilai separuh hayat sampel itu?
5 days
5 hari
10 days
10 hari
15 days
15 hari
20 days
20 hari
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
how many alpha particle released in this process?
Berapakah bilangan zarah alfa yang dibebaskan dari process ini?
1
2
4
6
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