Stars and Solar System Test

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Stars and Solar System Test - 1

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Weekly Quiz Competition

Question 1
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Which of the following is the correct order of planets in the solar system?

A
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

B
Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune

C
Venus, Mars, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune

D
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
Question 2
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Which of the following statements is incorrect about the Earth?

A
The Earth revolves around the Sun in a circular orbit.

B
Rotation of Earth causes day and night.

C
The revolution of the Earth causes seasonal changes on the Earth.

D
Moon is the only natural satellite of Earth.

Solution

The Earth revolves around the Sun in elliptical orbit.
Question 3
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On which planet is one day longer than a year on the Earth?

A
Saturn

B
Neptune

C
Venus

D
Jupiter

Solution

Venus takes 243 Earth days to rotate once on its axis. It takes 225 Earth days to orbit around the Sun. So a day nearly 20 Earth days longer than its year.
Question 4
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Which of the following is the correct match?

A
The smallest planet of the solar system - Venus

B
A galaxy - Group of planets

C
Not visible from the northern hemisphere - Pole star

D
Rotates from east to west ? Uranus

Solution

The smallest planet of the solar system is Mercury. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. Pole star is visible towards the North. Uranus rotates from east to west.
Question 5
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Read the given statements and select the correct option.

Statement 1: Saturn could float if put in water.
Statement 2: Saturn is less dense than water.

A
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

B
Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

C
Statement 1 is true but statement 2 is false.

D
Both statements 1 and 2 are false.
Question 6
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Which one of the following pairs of planets is known as gas giants?

A
Saturn and Mars

B
Venus and Mercury

C
Venus and Neptune

D
Saturn and Jupiter

Solution

A gas giant is a giant mainly composed of hydrogen and helium. Saturn and Jupiter are the gas giant planets of the solar system.
Question 7
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Which of the given planets is the brightest?

A
Mercury

B
Venus

C
Mars

D
Jupiter

Solution

Venus is brightest planet in the sky. It appears bright due to its cloudy atmosphere, which reflects almost 75 percent of sunlight that falls on it.
Question 8
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The nearest planet to the Earth is

A
Venus

B
Mercury

C
Jupiter

D
Mars

Solution

Venus is about the same size as the Earth and is the closest planet to the Earth.
Question 9
1 / -0

A star which appears blue will be

A
As hot as Sun

B
Cooler than Sun

C
Very cold indeed

D
Much hotter than Sun.

Solution

The stars which are much hotter than Sun appears blue. This is because most of the energy is emitted in the blue region of the spectrum.
Question 10
1 / -0

To an astronaut, the outer space appears

A
Dark blue

B
White

C
Black

D
Dark red.

Solution

The sky appears black to an astronaut because there is no atmosphere in the outer space that can scatter the sunlight.

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Stars and Solar System Test - 1

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Stars and Solar System Test - 1

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Question 1

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune

Venus, Mars, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus

Question 2

The Earth revolves around the Sun in a circular orbit.

Rotation of Earth causes day and night.

The revolution of the Earth causes seasonal changes on the Earth.

Moon is the only natural satellite of Earth.

Solution

Question 3

Saturn

Neptune

Venus

Jupiter

Solution

Question 4

The smallest planet of the solar system - Venus

A galaxy - Group of planets

Not visible from the northern hemisphere - Pole star

Rotates from east to west ? Uranus

Solution

Question 5

Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

Statement 1 is true but statement 2 is false.

Both statements 1 and 2 are false.

Question 6

Saturn and Mars

Venus and Mercury

Venus and Neptune

Saturn and Jupiter

Solution

Question 7

Mercury

Venus

Mars

Jupiter

Solution

Question 8

Venus

Mercury

Jupiter

Mars

Solution

Question 9

As hot as Sun

Cooler than Sun

Very cold indeed

Much hotter than Sun.

Solution

Question 10

Dark blue

White

Black

Dark red.

Solution

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