1.
Yang menjadi pusat tata surya adalah ....
Correct Answer
A. Matahari
Explanation
(UAS 2004)
2.
Garis edar planet mengelilingi matahari berbentuk ....
Correct Answer
A. Elips
Explanation
The correct answer is elips. The explanation is that the orbit of planets around the sun is not a perfect circle, but rather an ellipse. An ellipse is a closed curve in which the sum of the distances from any point on the curve to two fixed points (called foci) is constant. This means that the distance between the planet and the sun varies throughout its orbit, with the planet being closer to the sun at some points and farther away at others.
3.
Planet terbesar dalam tata surya kita adalah ....
Correct Answer
C. Jupiter
Explanation
(UAS 2005)
4.
Banyaknya planet yang dimiliki oleh tata surya kita adalah...
Correct Answer
D. 8
Explanation
The correct answer is 8 because our solar system consists of eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
5.
Benda langit yang terlihat melintas dengan cepat dan berpijar akibat gesekan dengan atmosfer adalah ....
Correct Answer
A. Meteor
Explanation
A meteor is a celestial object that enters the Earth's atmosphere and burns up due to friction, causing it to appear as a fast-moving and glowing streak of light. This is known as a meteor or shooting star. Meteors are often mistaken for comets or asteroids, but they are different in terms of their composition and behavior. Comets are icy bodies that leave a trail of gas and dust as they approach the Sun, while asteroids are rocky objects that orbit the Sun. Planetoids, on the other hand, are small celestial bodies that are similar to planets but are not classified as such.
6.
Urutan planet ke 3 dan ke 4 dari matahari adalah....
Correct Answer
B. Bumi dan Mars
Explanation
The correct answer is Bumi dan Mars. The question asks for the order of the third and fourth planets from the sun. Mars is the fourth planet, and Bumi (which means Earth) is the third planet. Therefore, the correct answer is Bumi dan Mars.
7.
Benda langit yang menyerupai planet, tetapi berukuran lebih kecil disebut....
Correct Answer
D. Asteroid
Explanation
An asteroid is a celestial body that resembles a planet but is smaller in size. It is different from a satellite, comet, or meteor. Satellites are objects that orbit around a larger celestial body, such as a planet. Comets are icy bodies that orbit the sun and develop a glowing "tail" when they get close to it. Meteors are small rocky or metallic objects that burn up in the Earth's atmosphere, creating a streak of light in the sky. Therefore, the correct answer is asteroid.
8.
Planet berikut yang arah rotasinya dari timur ke barat adalah ....
Correct Answer
A. Venus
Explanation
Venus is the correct answer because it is the only planet in the given options that rotates from east to west. Most planets, including Earth, rotate from west to east, but Venus has a unique retrograde rotation, where it spins in the opposite direction. This means that on Venus, the sun rises in the west and sets in the east.
9.
Planet yang paling dingin adalah ....
Correct Answer
D. Neptunus
Explanation
Neptunus is the correct answer because it is the farthest planet from the Sun in our solar system. Being located at such a distance, it receives very little sunlight and experiences extremely cold temperatures. Its average temperature is around -353 degrees Fahrenheit (-214 degrees Celsius), making it the coldest planet in our solar system.
10.
Planet berikut yang mempunyai waktu paling cepat mengelilingi matahari adalah ....
Correct Answer
A. Jupiter
Explanation
US/MBD 2013/2014 DKI(UAS 2005)
11.
Komet merupakan benda langit yang memiliki ekor. Ketika bergerak mendekati matahari melalui orbitnya, ekornya selalu bertambah ....
Correct Answer
A. Panjang menjauhi matahari
Explanation
Latihan 01 OSN IPA Tingkat Kabupaten 2014 www.ayomendidik.com
12.
The satelit of earth is ....
Correct Answer
C. Moon
Explanation
Prediksi OSN IPA SD Kab. Lumajang 2012
13.
Ukuran asteroid lebih kecil dibandingkan dengan planet. Asteroid mempunyai orbit berada diantara planet ....
Correct Answer
D. Mars dan Yupiter
Explanation
Prediksi OSN IPA SD Kab. Lumajang 2012
14.
A galaxy is a group of millions of stars. Our galaxy which is shaped like a spiral is called ....
Correct Answer
D. The milky way
Explanation
Prediksi OSN IPA SD Kab. Lumajang 2012
15.
Planet yang sering sekali disebut sebagai bintang merah karena berwarna kemerah-merahan adalah ...
Correct Answer
C. Mars
Explanation
Prediksi OSN IPA SD Kab. Lumajang 2012
16.
Planet berikut ini termasuk planet luar yaitu ....
Correct Answer
D. Saturnus
Explanation
The given question asks for a planet that is considered an outer planet. The options provided are Mercury, Venus, Earth, and Saturn. Mercury, Venus, and Earth are all inner planets, as they are located closer to the Sun. Saturn, on the other hand, is an outer planet, as it is located beyond the asteroid belt. Therefore, Saturn is the correct answer.
17.
Planet berikut yang termasuk planet inferior adalah ....
Correct Answer
A. Merkurius dan Venus
Explanation
The correct answer is Merkurius dan Venus. Planet inferior adalah planet yang berada lebih dekat dengan Matahari dibandingkan dengan Bumi. Merkurius dan Venus termasuk planet inferior karena keduanya berada di antara Matahari dan Bumi. Mars dan Yupiter adalah planet superior karena berada lebih jauh dari Matahari dibandingkan dengan Bumi. Uranus dan Neptunus adalah planet luar dan tidak termasuk dalam kategori planet inferior atau superior.
18.
Anggota tata surya yang tidak lagi disebut planet adalah....
Correct Answer
A. Pluto
Explanation
Pluto is no longer considered a planet because in 2006, the International Astronomical Union (IAU) redefined the criteria for what qualifies as a planet. According to the new definition, a planet must meet three criteria: it must orbit the Sun, it must be spherical in shape, and it must have cleared its orbit of other debris. While Pluto orbits the Sun and is spherical, it has not cleared its orbit of other debris, as it shares its orbit with other objects in the Kuiper Belt. Therefore, it is now classified as a dwarf planet rather than a full-fledged planet.
19.
Planet yang mempunyai kala revolusi paling kecil adalah ...
Correct Answer
B. Merkurius
Explanation
Merkurius memiliki kala revolusi yang paling kecil dibandingkan dengan planet-planet lainnya. Kala revolusi adalah waktu yang dibutuhkan oleh sebuah planet untuk mengorbit mengelilingi Matahari. Merkurius memiliki kala revolusi sekitar 88 hari, sementara planet lain seperti Jupiter, Bumi, dan Mars memiliki kala revolusi yang jauh lebih lama. Oleh karena itu, Merkurius adalah planet yang memiliki kala revolusi paling kecil.
20.
Orang yang melakukan perjalanan ke ruang angkasa dinamakan....
Correct Answer
B. Astronaut
Explanation
An astronaut is someone who travels to space. The term "astronaut" is commonly used to refer to individuals who are trained to travel and work in space. They undergo rigorous training and are equipped with the necessary skills and knowledge to operate spacecraft and conduct scientific experiments in space. Therefore, the correct answer is astronaut.