ASTRONOMI
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
Yulis Kusmonowinarti
Used 39+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Energi Matahari dibangkitkan oleh radiasi fusi thermonuklir dibagian pusatnya. Proses thermonuklir mengubah empat inti “A” menjadi inti lebih berat dan mengeluarkan sejumlah energi. Apakah inti “A” itu ?
Hidrogen
Helium
Oksigen
Karbon
Uranium
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Garis meridian adalah busur lingkaran di langit yang melalui titik-titik
Barat-zenit-timur
Utara-nadir-timur
Utara-zenit-selatan
Barat-nadir-timur
Semua salah
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Komet periode panjang cenderung memiliki orbit berbentuk
parabola
elips
lingkaran
hiperbola
helix
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Dari survei cacah bintang yang dilakukan pada empat daerah jumlah bintang masing-masing daerah adalah a, b, c, dan d. Hubungan jumlah bintang padakeempat daerah tersebut dinyatakan dalam sistem persamaan berikut :
ab + cd =38
ac + bd = 34
ad + bc = 43
Berapa jumlah total bintang (a + b + c + d) ?
17
18
19
20
21
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Anggap Bumi mengelilingi Matahari dalam orbit lingkaran, dengan radius orbit 1 satuan astronomi dan periode orbit 365,25 hari. Berapa percepatan sentripetal yang dialami Bumi ?
6 m/s2
0,6 m/s2
0,06 m/s2
0,006 m/s2
0,0006 m/s2
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Sumber energi bintang berkaitan dengan ......
reaksi atom di korona bintang
reaksi nuklir di inti bintang
reaksi atom di atmosfer bintang
pembakaran elemen hingga menjadi radioaktif
pembakaran unsur berat
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Mana pernyataan yang benar tentang Galaksi ?
Galaksi Bima sakti jika dipotret dari Bumi akan nampak berbentuk spiral
Bintang-bintang di daerah pusat Galaksi umumnya lebih panas sehingga warnanya lebih biru
Nebula kepala kuda (Horse Head nebula) berukuran lebih besar daripada galaksi pada umumnya
Galaksi spiral berbentuk pipih dan berotasi
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