1.
Kumpulan dari matahari, planet dan benda langit lainnya disebut ....
Correct Answer
B. Tata surya
Explanation
The correct answer is "Tata surya". Tata surya refers to a collection of the sun, planets, and other celestial bodies that are bound together by gravity. It is a system that includes the sun as the central star and all the objects that orbit around it, such as planets, moons, asteroids, and comets.
2.
Pusat tata surya adalah ....
Correct Answer
C. Matahari
Explanation
The correct answer is "Matahari" because the term "pusat tata surya" translates to "center of the solar system" in English, and the sun is the central and most important celestial body in our solar system. It is the source of light, heat, and energy for all the other planets, moons, and asteroids in the solar system. Therefore, the sun is considered the center or "pusat" of the solar system.
3.
Benda langit yang mengeliling matahari adalah ....
Correct Answer
B. Planet
Explanation
Planets are celestial bodies that orbit around the sun. They are not stars, meteors, or rainbows. Asteroids are small rocky objects that also orbit the sun, but they are not considered planets. Therefore, the correct answer is planet.
4.
Planet yang letaknya paling jauh dari matahari adalah ....
Correct Answer
A. Neptunus
Explanation
Neptunus is the correct answer because it is the planet that is located farthest from the sun in our solar system. It is the eighth and last planet from the sun and has an average distance of about 2.7 billion miles from it. Neptunus is known for its icy atmosphere, strong winds, and its blue color, making it a distinct planet in our solar system.
5.
Benda langit yang terlihat berkelip memancarkan cahaya pada malam hari adalah ....
Correct Answer
C. Bintang
Explanation
Bintang adalah benda langit yang terlihat berkelip dan memancarkan cahaya pada malam hari. Planet tidak berkelip seperti bintang, satelit adalah benda yang mengorbit planet dan tidak memancarkan cahaya sendiri, sedangkan komet biasanya tidak terlihat berkelip dan memancarkan cahaya seperti bintang.
6.
Planet yang memiliki ukuran paling besar adalah ....
Correct Answer
D. Jupiter
Explanation
Jupiter is the correct answer because it is the largest planet in our solar system. It has a diameter of about 143,000 kilometers, which is more than 11 times the diameter of Earth. Jupiter is known for its massive size and is often referred to as a gas giant. It is composed mostly of hydrogen and helium and has a strong gravitational pull.
7.
Planet yang tidak memiliki satelit adalah ....
Correct Answer
B. Venus
Explanation
Merkurius, Bumi, dan Mars semuanya memiliki satelit, sedangkan Venus tidak memiliki satelit. Oleh karena itu, Venus adalah planet yang tidak memiliki satelit.
8.
Phobos dan Deimos adalah satelit yang dimiliki planet ....
Correct Answer
C. Mars
Explanation
Phobos and Deimos are the two moons of Mars. They are often referred to as Martian moons and are the only natural satellites of the planet Mars. These moons were discovered in 1877 by American astronomer Asaph Hall and are named after the characters Phobos (fear) and Deimos (terror) from Greek mythology, who were the sons of the Greek god of war, Ares (equivalent to the Roman god Mars). Therefore, the correct answer is Mars.
9.
Garis edar yang dimiliki setiap planet disebut ....
Correct Answer
C. Orbit
Explanation
The correct answer is "Orbit" because the question is asking for the term that describes the path or trajectory followed by each planet. The orbit is the circular or elliptical path that a planet takes around the sun. Satelit refers to a natural or artificial object that orbits a planet, planet refers to a celestial body that orbits the sun, and meteorit refers to a small rocky or metallic object that enters the Earth's atmosphere from outer space.
10.
Berikut ini adalah planet-planet yang termasuk anggota planet dalam adalah ....
Correct Answer
C. Merkurius, Venus dan Bumi
Explanation
The correct answer is Merkurius, Venus dan Bumi. This answer includes all three planets mentioned in the options: Merkurius, Venus, and Bumi (Earth).
11.
Planet yang memiliki jarak paling jauh dari matahari adalah ....
Correct Answer
D. Neptunus
Explanation
Neptunus is the correct answer because it is the planet that is farthest from the sun in our solar system. It is located beyond Uranus and has an average distance of about 2.8 billion miles from the sun.
12.
Merkurius membutuhkan waktu mengeliling matahari sebanyak ....
Correct Answer
C. 88 hari
Explanation
Merkurius membutuhkan waktu 88 hari untuk mengeliling matahari. This statement explains that it takes 88 days for Mercury to complete one orbit around the sun.
13.
Atsmosfer merkurius terdiri dari gas natrium dan kalium sehingga ....
Correct Answer
B. Tidak ada makhluk hidup di atasnya
Explanation
The atmosphere of Mercury consists of sodium and potassium gases, which are not suitable for supporting life. Therefore, there are no living creatures on Mercury.
14.
Satu-satunya planet di tata surya yang dapat dihuni manusia adalah ....
Correct Answer
C. Bumi
Explanation
Bumi adalah satu-satunya planet di tata surya yang diketahui memiliki kondisi yang mendukung kehidupan manusia. Hal ini disebabkan oleh adanya atmosfer yang mengandung oksigen dan air, serta suhu yang cukup stabil. Selain itu, Bumi juga memiliki gravitasi yang memungkinkan manusia untuk beraktivitas dan tidak terlalu ekstrem. Planet lain seperti Merkurius, Venus, dan Mars memiliki kondisi yang tidak cocok untuk dihuni manusia karena suhu yang terlalu ekstrem, tidak adanya atmosfer yang cukup, atau kandungan gas beracun.
15.
Ganymede, Lo, Europe dan calisto adalah satelit yang dimiliki ....
Correct Answer
A. Jupiter
Explanation
The correct answer is Jupiter because Ganymede, Lo, Europe, and Calisto are all moons of Jupiter.
16.
Dua satelit saturnus yang terbesar adalah ....
Correct Answer
B. Titan dan Phoebe
Explanation
The correct answer is Titan and Phoebe. Titan is the largest moon of Saturn and the second-largest moon in the solar system. It is known for its thick atmosphere and is the only moon in the solar system with a significant atmosphere. Phoebe is another moon of Saturn and is the largest irregular moon in the solar system. It is believed to be a captured object from the Kuiper Belt. Both Titan and Phoebe are significant satellites of Saturn.
17.
Bumi Mengeliling matahari selama ....
Correct Answer
A. 365 ¼ hari
Explanation
Bumi mengelilingi matahari selama 365 ¼ hari. This answer is correct because it is a well-known fact that one year on Earth is approximately 365.25 days. The .25 represents the extra quarter day that is accounted for in leap years, where an extra day is added to the calendar every four years. This adjustment ensures that the calendar stays aligned with the Earth's orbit around the sun. Therefore, the correct answer is 365 ¼ hari.
18.
Cincin yang dimiliki saturnus terdiri dari ....
Correct Answer
A. Debu halus, kerikil dan butiran es
Explanation
The correct answer is "Debu halus, kerikil dan butiran es". This is because Saturn's rings are made up of a combination of small particles, including fine dust, pebble-sized rocks, and tiny ice particles. These particles orbit around Saturn and create the appearance of rings when viewed from Earth.
19.
Pada tahun 2006 pluto tidak lagi dimasukan ke dalam kategori planet di tata surya karena ....
Correct Answer
D. Tidak mempunyai cahaya
Explanation
Pluto was no longer classified as a planet in 2006 because it does not emit its own light. This is one of the criteria used to define a planet - it must orbit the sun, be spherical in shape, and clear its orbit of other debris. Since Pluto does not emit its own light and instead reflects sunlight, it was reclassified as a "dwarf planet."
20.
Planet-planet yang berada di tata surya tidak bertabrakan karena ....
Correct Answer
D. Mempunyai orbit sendiri-sendiri
Explanation
Planet-planet yang berada di tata surya tidak bertabrakan karena mereka memiliki orbit sendiri-sendiri. Orbit adalah jalur yang dilalui oleh planet saat mengelilingi matahari. Setiap planet memiliki orbit yang unik dan teratur, sehingga mereka tidak akan saling bertabrakan. Orbit ini dipengaruhi oleh gaya gravitasi matahari dan kecepatan planet. Dengan memiliki orbit sendiri-sendiri, planet-planet dapat tetap menjaga jarak yang aman satu sama lain dan menghindari tabrakan.
21.
Benda langit yang mempunyai garis edar antara lintasan mars dan jupiter adalah ....
Correct Answer
B. Asteroid
Explanation
An asteroid is a celestial object that orbits the sun and is found mainly in the asteroid belt, which is located between the orbits of Mars and Jupiter. This makes it the correct answer to the question. Komet (comet) and planet (planet) do not specifically have orbits between Mars and Jupiter, while satelit (satellite) refers to objects that orbit planets or other celestial bodies, not the sun.
22.
Meteor yang jatuh sampai ke permukaan bumi disebut ....
Correct Answer
C. Meteorit
Explanation
A meteor that reaches the surface of the Earth is called a meteorite.
23.
Ekor komet terlihat memanjang dan selalu ....
Correct Answer
C. Membelakangi arah matahari
Explanation
Komet terlihat memanjang dan selalu membentuk ekor karena saat mendekati matahari, panasnya menyebabkan gas dan debu di komet menguap. Ekor komet terbentuk karena tekanan angin matahari yang mendorong partikel-partikel tersebut menjauh dari komet dan membentuk ekor yang memanjang. Oleh karena itu, komet selalu membentuk ekor yang mengarah menjauh dari arah matahari, atau dengan kata lain, komet selalu membelakangi arah matahari.
24.
Planet dalam adalah planet yang letaknya ....
Correct Answer
D. Di antara Matahari dan Asteroid
Explanation
Planet dalam adalah planet yang letaknya di antara Matahari dan Asteroid. Ini berarti planet ini berada lebih dekat dengan Matahari daripada asteroid, tetapi lebih jauh dari Matahari daripada planet Bumi, Mars, dan Yupiter.
25.
Planet tempat manusia berkembang biak adalah planet ....
Correct Answer
C. Bumi
Explanation
The correct answer is Bumi because it is the only planet in the given options where humans can reproduce and thrive. Earth has the necessary conditions such as an atmosphere, water, and a suitable temperature range for human survival. Merkuris and Mars are too hot and do not have a suitable atmosphere, while Venus has a toxic atmosphere and extreme temperatures. Therefore, Bumi is the only viable option for human reproduction.