Which planet is the largest in the Solar System?

It is the fifth planet from the Sun and the oldest of the other planets.

Jupiter is the largest planet in the Solar System.

Question

Question 1: Which planet is the largest in the Solar System?

a. Mercury

b. Jupiter

c. Saturn

Question 2: Jupiter is a rocky planet, true or false?

a. True

b. False

Question 3: Jupiter has the largest satellite in the Solar System, true or false?

a. True

b. False

Question 4: What is the name of the Great Red Spot?

a. One of Jupiter's four moons

b. Volcanoes on Jupiter

c. Giant vortex storm on Jupiter

Question 5: How long does it take for Jupiter to complete one rotation around its axis?

a. 10 hours

b. 10 days

c. 10 weeks

Answer

Question 1: b - Jupiter. Jupiter is the largest planet in the Solar System. The Solar System has the Sun as its central star. Other celestial bodies such as planets, asteroids, meteors, comets, and dust orbit the Sun.

The eight planets of the Solar System include: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune (in order of closest to the Sun).

Jupiter is the fifth planet from the Sun. According to Universe Today, Jupiter has a diameter at the equator of 142,984 km, more than 11 times that of Earth.

The volume of the largest planet in the Solar System is 1.43128×1015 km3, enough to contain 1,321 Earths inside with room left over.

Jupiter's surface area is 6.21796×1010 km2, 122 times the surface of Earth.

Jupiter weighs 1.8986×1027 kg, nearly 318 times more than Earth.

In fact, Jupiter has 2.5 times the mass of all the planets in the Solar System combined. The Sun accounts for 99.9% of the mass of the entire Solar System.

Sentence 2: b - False. Jupiter belongs to the group of gas giant planets in the Solar System, along with Saturn. Uranus and Neptune are called ice giant planets, the remaining four planets are terrestrial planets.

Jupiter has no solid, defined surface. It is composed mainly of hydrogen and helium, surrounding a core containing heavier elements.

Jupiter's atmosphere is 5,000 km high. Its upper atmosphere is 90% hydrogen, about 10% helium (by volume or molecular weight), and small amounts of other compounds such as ammonia, sulfur, methane, and water vapor.

According to Space, from the outside to the core of Jupiter, the pressure and temperature increase gradually. Therefore, the deeper you go, the hydrogen changes state from gas to liquid, and can even turn into metal.

Question 3: a - Correct. Ganymede is Jupiter's largest moon and also the largest moon in the Solar System, larger than Pluto (which was once considered a planet of the Solar System). Ganymede's diameter is larger than Mercury's, but due to its low density, it is only half as heavy. It takes more than seven days to orbit Jupiter, and is the only moon in the Solar System where a magnetosphere - the space surrounding a planet controlled by its magnetic field - has been discovered.

Astronomer Galileo Galilei discovered Ganymede in 1610, the same year as the other three major moons of Jupiter. Another astronomer, Simon Marius, suggested naming the moon after the Greek mythological character Ganymede, a prince of Troy, "the most beautiful boy on earth," who was loved by Zeus, made his cupbearer, and granted immortality.

Question 4: c - The giant storm on Jupiter. The Great Red Spot, which has been raging on Jupiter for hundreds of years, continues to shrink and change color to orange, according to observations from the Hubble Space Telescope of the US National Aeronautics and Space Administration (NASA). Existing since the 1600s, the Great Red Spot began to be observed in the late 1800s. The Great Red Spot rotates counterclockwise (opposite the direction of Jupiter's rotation) with a period of about 6 Earth days. At first, it was 41,000 km wide, large enough to fit 3 Earths inside. By 2015, it was only 16,500 km wide. The Great Red Spot also changed shape from oval to round.

Question 5: a - Jupiter takes 10 hours to rotate once around its axis. Jupiter's rotation speed is the fastest in the Solar System. It completes one rotation around its axis in less than 10 hours (9.9 hours). Therefore, a day on Jupiter is shorter than a day on Earth. Jupiter's axial tilt is relatively small, only 3.13 degrees. That is why this planet does not have large seasonal changes like Earth and Mars.