Solar System Test

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Solar System Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

How many kilometers make one light year?

A
9.46 x 10¹² km

B
94.6 x 10¹² km

C
9.46 x 10¹³ km

D
9.46 x 10⁹ km

Solution

One light year is the distance travelled by the light in one year
Using
d = ct , c is the speed of the light , t is the time in seconds ( in one year)
d=( 3×10⁸ )× (3600×24×365)
d = 9.46×10¹⁵ m or d = 9.46 ×10¹² km
Question 2
1 / -0

How many seconds are there in one year?

A
3,25,36,000

B
3,40,21,000

C
3,15,57,600

D
2,05,56,000
Question 3
1 / -0

Which of the following statements is true about a light year?

A
It is the distance travelled by light in water.

B
It is the distance travelled by light in vacuum.

C
It is a unit of distance.

D
It is a unit of time.
Question 4
1 / -0

After sun, which is the nearest star to the earth?

A
Moon

B
Alpha Centauri

C
Proxima Centauri

D
Stars
Question 5
1 / -0

__________ is/are the building block(s) of the universe.

A
Sun

B
Meteors

C
Stars

D
Galaxies
Question 6
1 / -0

What is the relationship between the Earth and the Milky Way?

A
The Earth and the Milky Way are very close to each other.

B
The Milky Way is a part of planet Earth.

C
The Earth is a part of the Milky Way Galaxy.

D
The Earth and the Milky Way are at a large distance from each other.

Solution

The Milky Way is the galaxy that contains the Solar System. Our Solar System consists of our star, the Sun, and its orbiting planets (including Earth), along with numerous moons, asteroids, comet material, rocks, and dust. The Earth is a part of the Milky Way Galaxy. Earth is located in one of the spiral arms of the Milky Way (called the Orion Arm) which lies about two-thirds of the way out from the centre of the Galaxy.
Question 7
1 / -0

When can the Milky Way galaxy be seen?

A
In the day time

B
On a full moon night

C
On a dark night

D
Any time of day and night
Question 8
1 / -0

Which of the following phenomena can explain the twinkling of stars?

A
Atmospheric refraction

B
Dispersion

C
Total internal refraction

D
Scattering

Solution

Atmospheric refraction is the cause of twinkling of stars because of change of layers in the atmosphere.
Question 9
1 / -0

Which of the following statements regarding the sun is correct?

A
The sun is the biggest star.

B
The sun is the brightest star.

C
The sun is the nearest star to Earth.

D
The sun is not a star.

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Solar System Test - 5

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Solar System Test - 5

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Question 1

9.46 x 1012 km

94.6 x 1012 km

9.46 x 1013 km

9.46 x 109 km

Solution

Question 2

3,25,36,000

3,40,21,000

3,15,57,600

2,05,56,000

Question 3

It is the distance travelled by light in water.

It is the distance travelled by light in vacuum.

It is a unit of distance.

It is a unit of time.

Question 4

Moon

Alpha Centauri

Proxima Centauri

Stars

Question 5

Sun

Meteors

Stars

Galaxies

Question 6

The Earth and the Milky Way are very close to each other.

The Milky Way is a part of planet Earth.

The Earth is a part of the Milky Way Galaxy.

The Earth and the Milky Way are at a large distance from each other.

Solution

Question 7

In the day time

On a full moon night

On a dark night

Any time of day and night

Question 8

Atmospheric refraction

Dispersion

Total internal refraction

Scattering

Solution

Question 9

The sun is the biggest star.

The sun is the brightest star.

The sun is the nearest star to Earth.

The sun is not a star.

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9.46 x 10¹² km

94.6 x 10¹² km

9.46 x 10¹³ km

9.46 x 10⁹ km