Stars and the Solar System Test

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Stars and the Solar System Test - 34

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Weekly Quiz Competition

Question 1
1 / -0

The age of our solar system is approximately

A
$$4600$$ million years

B
$$4.6$$ million years

C
$$460$$ million years

D
$$460$$ billion years

Solution

The age of our solar system is approximately 4600 million years.
Question 2
1 / -0

Foot prints of astronauts on moon are seen on it ever today because:

A
It has no atmosphere.

B
Wind breeze is very light.

C
Footprints are carved by them permanently.

D
Of very low atmospheric pressure.

Solution

Foot prints of astronauts on the moon are seen on it ever today because it has no atmosphere.
Question 3
1 / -0

The average temperature is maximum for the planet ___________.

A
Venus

B
Mercury

C
Jupiter

D
Earth

Solution

Above image shows average temapreture of different planets in degree censious scale. Plane venus have maximum average tempareture.
Question 4
1 / -0

Mass of Jupiter is ............ that of all the other planets combined.

A
Twice

B
Thrice

C
Four times

D
Ten times

Solution

Jupiter's mass is $$2$$ times that of all the other planets in the Solar System combined.
Question 5
1 / -0

Which of the following planets takes maximum time to complete one revolution around the Sun?

A
Mercury

B
Jupiter

C
Saturn

D
Neptune

Solution

Neptune takes maximum time to complete one revolution as it is the farthest planet.
Question 6
1 / -0

Speed of light in air medium is

A
$$3\times 10^4km/s$$

B
$$3\times 10^6km/s$$

C
$$3\times 10^5km/s$$

D
$$3\times 10^3km/s$$

Solution

$$\textbf{Explanation:}$$
Speed of light in air or vacuum, $$C=3\times 10^8 m/s=3\times 10^5 km/s$$
$$\textbf{Hence option C correct}$$
Question 7
1 / -0

The meteors seldom reach the earth because of :

A
freezing caused when they pass through the atmosphere

B
vapourization due to heat generated by friction

C
greater force of attraction towards sun

D
greater force of attraction towards moon

Solution

Meteors enter the Earth's atmosphere with high speeds. The friction or air resistance at such high speeds generates enough heat to ignite and vaporize it.
Question 8
1 / -0

The laws governing the movement of celestial bodies are studied under the branch of physics called _________ .

A
spintronics

B
astrophysics

C
nuclear physics

D
nano physics

Solution

Astrophysics is the branch of astronomy concerned with nature and movement of celestial bodies.
Question 9
1 / -0

All planets, asteroids, and sun except few exceptions such as _______ and ________ rotate in counterclockwise directions.

A
mars and venus

B
venus and uranus

C
uranus and saturn

D
saturn and venus

Solution

All eight planets in the Solar System orbit the Sun in the direction of the Sun's rotation, which is counterclockwise when viewed from above the Sun's north pole.
The exceptions – the planets with clockwise rotation – are Venus and Uranus
Question 10
1 / -0

Arrange the following planets in the increasing order of their distance from the sun :
(a) Earth
(b) Mars
(c) Venus
(d) Saturn

A
c a b d

B
a b c d

C
d c b a

D
b a c d

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Re-Attempt Weekly Quiz Competition

Stars and the Solar System Test - 34

Result

Stars and the Solar System Test - 34

Score

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Rank

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SHARING IS CARING

Question 1

$$4600$$ million years

$$4.6$$ million years

$$460$$ million years

$$460$$ billion years

Solution

Question 2

It has no atmosphere.

Wind breeze is very light.

Footprints are carved by them permanently.

Of very low atmospheric pressure.

Solution

Question 3

Venus

Mercury

Jupiter

Earth

Solution

Question 4

Twice

Thrice

Four times

Ten times

Solution

Question 5

Mercury

Jupiter

Saturn

Neptune

Solution

Question 6

$$3\times 10^4km/s$$

$$3\times 10^6km/s$$

$$3\times 10^5km/s$$

$$3\times 10^3km/s$$

Solution

Question 7

freezing caused when they pass through the atmosphere

vapourization due to heat generated by friction

greater force of attraction towards sun

greater force of attraction towards moon

Solution

Question 8

spintronics

astrophysics

nuclear physics

nano physics

Solution

Question 9

mars and venus

venus and uranus

uranus and saturn

saturn and venus

Solution

Question 10

c a b d

a b c d

d c b a

b a c d

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