Stars and the Solar System Test

Result

Stars and the Solar System Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Between which planets does the asteroid belt lie?

A
Mars and Jupiter

B
Mercury and Venus

C
Saturn and Neptune

D
Earth and Mars

Solution

Asteroids are rocky, airless worlds that orbit our Sun, but are too small to be called planets. Tens of thousands of these minor planets are gathered in the main asteroid belt, a vast doughnut-shaped ring between the orbits of Mars and Jupiter. Asteroids that pass close to Earth are called Near-Earth Objects or NEOs.
Question 2
1 / -0

The term 'meteoroid' is applied to an interplanetary body. Which of the following is correct about a meteor?

A
A meteor occurs when a meteoroid is not able to enter the Earth's surface.

B
A meteor occurs when meteoroid enters the Earth's atmosphere and vaporises.

C
A meteor occurs when a meteoroid survives its passage through the Earth's atmosphere.

D
None of these

Solution

Meteoroid is a small particle from a comet or an asteroid orbiting the Sun. The light phenomenon which results when a meteoroid enters the Earth's atmosphere and vaporises is known as meteor.
Question 3
1 / -0

The First Quarter Moon is often called Half Moon because we can see exactly 50% of the Moon's surface illuminated.

What is the period called when we are seeing less and less of the Moon each night?

A
Eclipsing

B
Waning

C
Waxing

D
Phasing

Solution

The moon wanes when it gradually appears less and less round, after the Full Moon.
Question 4
1 / -0

Which of the following is incorrect for the planet Mercury?

A
It is the smallest planet.

B
It is nearest to the Sun.

C
It has no satellite.

D
It is known as 'morning star'.

Solution

Mercury is the smallest and innermost planet in the solar system.
Its orbital period (about 88 Earth days) is less than that of any other planet in the solar system.
It has no known natural satellites.
Although Mercury can appear as a bright star-like object when viewed from Earth, its nearness to the Sun often makes it more difficult to see than Venus.
The statement given in option (4) is incorrect because Venus is the planet called as 'Morning star'.