The Planets

Q.

Name all the planets of the solar system in the order of their increasing distances from the sun.

Q.

Question 5 (e)

Are there nine planets in the solar system? Justify!

Q.

What are inner planets and outer planets? Name them.

Q.

The smallest planet in the solar system is

1. Mars

2. Jupiter

3. Mercury

4. Earth

Q. The Moon rotates on its own axis as it revolves around the Earth. How many rotations does it make for one revolution?

1. 7
2. 28
3. 30
4. 1

Q.

Name the planets which lie between the Sun and the Earth.

Q. Which of the following is an outer planet in our Solar System?

1. Mercury
2. Mars
3. Uranus
4. Venus

Q.

Question 4 (a)

The planet which is farthest from the sun is _________.

Q.

Sun rotate on its own axis. How much time does it take to complete one rotation?

Q.

Why is light from the moon called cool light while light from the sun called hot light?

Q.

Which planet rotates from east to west about sun?

1. Uranus

2. Earth

3. Neptune

4. Mars

Q.

What are planets? How many planets are there in the solar system?

Q.

State whether the following statements are true or false:

(a) Constellation Orion can be seen only with a telescope.

(b) Pole Star is a member of the Solar system.

(c) Mercury is the smallest planet of the Solar system.

(d) Uranus is the farthest planet in the Solar system.

(e) There are nine planets in the Solar system.

(f) Comets are members of the solar system.

(g) INSAT is an artificial satellite.

Q.

Which celestial object is called a shooting star?

Q. The time taken by a planet to orbit around the Sun is defined by:

1. Rotation
2. Revolution
3. Resolution
4. Rotatory motion

Q. The stars appear to twinkle. Give reason.

Q.

Why is moon a satellite of Earth but Earth not a satellite of Sun.

Q. Which moon phase is it if the Sun and Moon are on the same side of the Earth?

1. Full Moon
2. Third or last quarter
3. First quarter
4. New Moon

Q. The distance between the sun and the earth is

1. 150 million kilometers
2. 100 million kilometers
3. 1.2 light years
4. 2 billion kilometers

Q.

Match items in column A with one or more items in column B.

A B

(i) Inner planets (a) Saturn

(ii) Outer planets (b) Pole star

(iii) Constellation (c) Great Bear

(iv) Satellite of the Earth (d) Moon

(e) Earth

(f) Orion

(g) Mars

Q. Celestial body revolving around another celestial body is called as ___.

1. satellite
2. star
3. planet
4. comet

Q.

State one way in which the planets can be distinguished from the stars in the night sky.

Q. Match the planets with their characteristics.

1. The reddish planet
2. The evening star
3. The biggest planet
4. The eighth planet

Q.

Statement 1: Pluto is no longer a planet of the solar system. Statement 2: Till 2006, Pluto was a planet and it was known to be the farthest from sun, but after the new definition of planet by International Astronomical Union (IAU), it was no longer found to fit this definition.

Q.

State whether the following statements are true or false. All planets take the same time to revolve around the Sun

1. True
2. False

Q. The planet nearest to the Sun is ________.

1. Mars
2. Mercury
3. Venus
4. Earth

Q.

Paheli and Boojho observe a bright object in the night sky that was not twinkling. Paheli says, it is a star and Boojho says it is a planet. Who is correct?

Q.

Statement 1: Mercury, Venus, Earth and Mars are known as inner planets. They have less number of moons or no moons.

Statement 2: Jupiter, Saturn, Uranus and Neptune are known as outer planets. They have large number of moons and all have a ring system around them.

1. Both the statements are true.

2. Both the statements are false.

3. Statement 1 is true and statement 2 is false.

4. Statement 1 is false and statement 2 is true.

Q.

Which planet is the smallest in size in the solar system?

Q.

Which of the following is not a planet?

(a) Mercury

(b) Saturn

(c) Mars

(d) Moon