Tag: our earth and our solar system

Quizzes (13) Questions (117)

Questions Related to our earth and our solar system

Multiple choice evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

Shooting stars are actually not meteors.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Despite its name, shooting stars are not actually stars. Shooting star is either a piece of a small rock or dust from space that heats up when is enters the Earth's atmosphere. Shooting stars are basically meteors.

Multiple choice evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

Which of the following is NOT true for comets ?

  1. Some comets are believed to have originated in a region near the edge of the orbit of the outer planets in our solar system called the "scattered disk" that overlaps a region called the Kulper belt.

  2. Some comets are believed to have originated in the outer-most region associated with our solar system, called the Oort cloud.

  3. The tail of a comet gives the comet its propulsion, like rocket fuel out the back end of a rocket.

  4. The tails of a comet generally point away from the Sun and are made of two major parts - a dusty part (that curves a bit) and an ionic part.

  5. Comets of ten contain significant amount of water.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the outer Solar System, comets remain frozen and are extremely difficult or impossible to detect from Earth due to their small size. As a comet approaches the inner Solar System, solar radiation causes the volatile materials within the comet to vaporize and stream out of the nucleus, carrying dust away with them. The streams of dust and gas thus released form a huge, extremely tenuous atmosphere around the comet called coma, and sun's radiation pressure and solar wind cause the tail to point away from the Sun.

All the facts stated in the options are correct except for option C.
Correct answer is option C.

Multiple choice evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

Asteroids orbit around the sun in belt_____________.

  1. beyond Uranus

  2. between Jupiter and Saturn

  3. between Jupiter and mars

  4. between Earth and Mars
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The asteroid belt is a region of space located between the orbits of Mars and Jupiter, containing the majority of the solar system's asteroids.

Multiple choice evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

The tail of a comet always points__________ .

  1. towards the sun

  2. away from the sun

  3. towards north-east

  4. towards south-west
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The streams of dust and gas thus released from a huge extremely tenous atmosphere around the comet called coma and force exerted on coma by the sun's radiation pressure and solar wind cause an anormous tail form which points away from the sun

Multiple choice evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

Which of the following is NOT true for comets?

  1. Some comets are believed to have originated in a region near the edge of the orbit of the outer planets in our solar system called the "scattered disk" that overlaps a region called the Kuiper belt

  2. Some comets are believed to have originated in the outer-most region associated with our solar system, called the Oort cloud

  3. The tail of a comet gives the comet its propulsion, like rocket fuel out the back end of a rocket

  4. The tails of comets generally point away from the sun and are made of two major parts-a dusty part (that curves a bit) and an ionic part

  5. Comets often contain significant amounts of water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In addition to celestial objects like $\textit{Comets}$, we also have  $\textit{Asteroids}$ which are small rocky bodies orbiting the sun and mostly found in the belt (region) between Mars and Jupiter. While there are also other asteroids lying beyond this region whose paths often come in close proximity with orbit of earth. \par Many a times collision between two asteroids, can result in small pieces breaking off from the bodies. These pieces are called $\textit{meteoroids}$. If a meteoroid enters the earth's atmosphere, it vaporizes and turns into a $\textit{meteor}$.

Multiple choice evs - ii our earth and our solar system solar system and sun planets and stars introduction to solar system planets sunita's experience in space space exploration

Which of the following is NOT a planet of our Solar System?

  1. Sirius

  2. Mercury

  3. Saturn

  4. Earth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Planets of solar system are : Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. 
Sirius is not a planet of the Solar system. It is a star. It is the brightest star in the night sky and located close to Orion.