Tag: planets of the solar system

Quizzes (0) Questions (49)

Questions Related to planets of the solar system

Multiple choice physics our solar system planets of the solar system solar system and sun introduction to solar system

The planet Jupiter is bulged at the centre and flattened at the poles because of ___________.

  1. movement of gases

  2. heaviness of the planet

  3. rotation of the planet

  4. revolution of the planet
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Planets that rotate rapidly experience a centrifugal force that causes them to bulge at the equator and flatten at the poles. Jupiter has a very fast rotation period, leading to this oblate shape.

Multiple choice physics our solar system planets of the solar system solar system and sun introduction to solar system

The difference in the length of a mean solar day and a sidereal day is about

  1. $1$ minute

  2. $4$ minute

  3. $15$ minute

  4. $56$ minute
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solar day is the time taken by earth to complete one rotation about its axis with respect to sun. Sidereal day is the time taken by earth to complete one rotation about its axis with respect to distant star. There is a difference of $4$ minutes between solar day and sidereal day. Solar day is longer as earth has to rotate greater angle to attain same position with respect to sun due to its own motion (revolution) round the sun. Its position with respect to distant star remains almost fixed.

Multiple choice geography the sun, the moon and the earth planets of the solar system solar system and sun introduction to solar system

Which is the correct sequence of planets in increasing order of size?

  1. Saturn, Jupitar, Uranus, Neptune

  2. Jupitar, Saturn, Uranus,&nbsp;<span>Neptune</span>

  3. Jupitar, Uranus, Neptune, Saturn

  4. Neptune, Uranus, Saturn, Jupitar
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A star and all the objects travelling around it — planets, moons, asteroids, comets and meteoroids constitute a solar system. Our solar system is located in Milky Way galaxy. Sun is the star of our solar system. The eight planets and their natural satellites, dwarf planets and their satellites, as well as asteroids, comets and other celestial bodies revolve around the sun.

Order of the planets of solar system on the basis of their size is given as following: -

  1. Jupiter - Its diameter is 69,911 km.
  2. Saturn - Its diameter is 58,232 km.
  3. Uranus - Its diameter is 25,362 km.
  4. Neptune - Its diameter is 24,622 km.
  5. Earth - Its diameter is 6,371 km.
  6. Venus- Its diameter is 6,052 km.
  7. Mars - Its diameter is 3,390 km.
  8. Mercury- Its diameter is 2,440 km.

Multiple choice physics our solar system planets of the solar system solar system and sun introduction to solar system

If the axis of rotation of the earth were extended into space then it would pass close to

  1. The moon

  2. The sun

  3. The polar star

  4. The centre of mass of all the planets in the solar system
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A pole star is a visible star, which lies approximately directly overhead when viewed from earth's north pole or south pole. In practice the term pole star usually refers to polars, which is the current northern pole star, also known as north star. The south celestial pole lacks a bright star like polarise to mark its position.

Multiple choice physics our solar system planets of the solar system solar system and sun introduction to solar system

Which of the following describes ecliptic orbit?

  1. Orbit travelled by the Moon round the Sun.

  2. Path travelled by the Earth round the Sun

  3. Orbit along which Sun appears to move among the stars

  4. Orbit along which Moon appears to move among the stars
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
An ecliptic orbit is the one, in which the Sun appears to move among all the stars.
Multiple choice geography the sun, the moon and the earth planets of the solar system solar system and sun introduction to solar system

What is Minor Planet?

  1. Term used to describe an astronomical object that is neither a dominant planet nor a comet

  2. It includes away planet that orbits around the sun

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Minor planet is a term used to refer to a celestial object – that is not a planet or comet – which orbits the Sun. Found in 1801, Ceres, also known as a dwarf planet, was the first minor planet discovered. 

Multiple choice physics our solar system planets of the solar system solar system and sun introduction to solar system

Who was the first to suggest, "A planet moves most quickly when it is closest to the sun, but slows down as it moves farther away"?

  1. Johannes Kepler

  2. Galileo Galilei

  3. Tycho Brahe

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

Kepler's law states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. So a planet moves most quickly when it is closest to the sun,as it have to cover more distance in same time but it again  slows down as it moves farther away as covering distance is less.