Fizik T5 : 5.0 Keradioaktifan [Ujian Topikal]
Quiz
•
Physics
•
11th Grade
•
Practice Problem
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Medium
Cg Khairani Moe
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tiga jenis sinaran radioaktif, P,Q dan R, dihalakan kepada kepingan kertas, kepingan aluminium dan kepingan plumbum. Antara sinaran berikut, yang manakah diwakili oleh P, Q dan R?
P : Alfa
Q : Gama
R : Beta
P : Beta
Q : Alfa
R : Gama
P : Gama
Q : Alfa
R : Beta
P : Gama
Q : Beta
R : Alfa
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jadual menunjukkan saparuh hayat bagi empat jenis cecair isotop yang memancarkan sinar gama. Isotop cecair yang manakah sesuai digunakan untuk mengesan pembekuan darah?
P
Q
R
S
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah menunjukkan siri pereputan radioaktif bagi nukles uranium-238 kepada nukleus radium-226. Berapakah bilangan zarah alfa dan zarah beta yang dipancarkan dalam proses ini?
Bilangan zarah alfa = 2
Bilangan zarah beta = 3
Bilangan zarah alfa = 3
Bilangan zarah beta = 2
Bilangan zarah alfa = 4
Bilangan zarah beta = 1
Bilangan zarah alfa = 1
Bilangan zarah beta = 1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara pernyataan-pernyataan berikut yang manakah merupakan ciri sinar beta?
Zarah bercas positif
Ianya adalah satu gelombang elektromagnet
Mempunyai kuasa pengionan lebih tinggi daripada alfa
Mempunyai kuasa penembusan lebih rendah daripada gama.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan berikut mewakili proses reputan bagi uranium-219.
Berapakah nilai X and Y?
X = 1
Y = 1
X = 2
Y = 1
X = 1
Y = 2
X = 2
Y = 2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam satu tindakbalas nukleus, sebanyak 2.70 x 10-12 J tenaga dibebaskan. Berapakah jisim yang hilang?
[ Diberi halaju cahaya, c = 3 x 108 ms-1 dan E = mc2 ]
9.0 x 10-12 kg
9.0 x 10-18 kg
3.0 x 10-11 kg
3.0 x 10-29 kg
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan di atas menunjukkan satu nukleus Polonium memancarkan zarah alfa dan sinar gamma untuk membentuk nukleus Plumbum. Kombinasi manakah yang betul bagi x dan y?
x = 214
y = 2
x = 214
y = 4
x = 206
y = 2
x = 206
y = 4
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