Radioaktivitas
Quiz
•
Physics
•
12th Grade
•
Medium
Muzakin Kusnan
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Urutan daya tembus sinar-sinar radioaktif dari yang terkuat hingga yang terlemah adalah ….
alfa, beta, gamma
beta, alfa, gamma
alfa, gamma, beta
gamma, alfa, beta
gamma, beta, alfa
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Urutan sinar radioaktif berdasarkan daya ionisasi dari yang besar ke yang lebih kecil adalah ….
α ; γ ; β
β ; γ ; α
α ; β ; γ
γ ; β ; α
γ ; α ; β
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Perhatikan gambar! X menyatakan arah medan magnet tegak lurus bidang kertas menjauhi pembaca. Sinar-sinar radioaktif yang dipancarkan tersebut adalah ….
Nomor 1: sinar alfa; nomor 2: sinar beta; nomor 3: sinar gamma
Nomor 1: sinar beta; nomor 2: sinar gamma; nomor 3: sinar alfa
Nomor 1: sinar gamma; nomor 2: sinar alfa; nomor 3: sinar beta
Nomor 1: sinar gamma; nomor 2: sinar beta; nomor 3: sinar alfa
Nomor 1: sinar alfa; nomor 2: sinar gamma; nomor 3: sinar beta
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Suatu unsur radioaktif mempunyai massa 10 gram dan waktu paruh 30 menit. Banyaknya zat radioaktif yang meluruh sesudah 2 jam adalah ….
0,625 gram
1,250 gram
2,500 gram
8,75 gram
9,375 gram
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Setelah 40 hari massa suatu bahan radioaktif tinggal massa semula, berati waktu paruh bahan tersebut adalah ….
2 hari
8 hari
32 hari
64 hari
120 hari
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Dari penimbangan thorium 234 ternyata massanya 12,8 mg. Jika 48 hari kemudian penimbangannya menghasilkan massa thorium 3,2 mg, maka waktu paruhnya (T½) adalah ….
6 hari
12 hari
24 hari
48 hari
96 hari
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sebuah batuan mempunyai massa 32 gram merupakan zat radioaktif murni mengalami peluruhan menjadi stabil dengan waktu paro 2 menit. Setelah 6 menit massa batuan tinggal ….
4 gram
5 gram
9 gram
28 gram
32 gram
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