8th Grade > Physics
STARS AND THE SOLAR SYSTEM MCQs
Total Questions : 56
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Answer: Option B. -> decreases
:
B
The size of moon decreases progressively after the full moon day, till the point it disappears completely on the new moon day. After that, it starts to increase again.
:
B
The size of moon decreases progressively after the full moon day, till the point it disappears completely on the new moon day. After that, it starts to increase again.
Answer: Option B. -> grows in size
:
B
The day on which no region of the moon is visible is called as a new moon day. The next day, only a small portion of the moon is visible in the sky. This is known as the crescent moon. Thereafter, every night the size of the visible part of the moon grows larger.
:
B
The day on which no region of the moon is visible is called as a new moon day. The next day, only a small portion of the moon is visible in the sky. This is known as the crescent moon. Thereafter, every night the size of the visible part of the moon grows larger.
Answer: Option C. -> 8 minutes
:
C
Light travel at 300000 km per secondand the distance between Earth and the Sun is 150 million km. It takes nearly 8 minutes for the light to reach Earth.
:
C
Light travel at 300000 km per secondand the distance between Earth and the Sun is 150 million km. It takes nearly 8 minutes for the light to reach Earth.
Answer: Option B. -> Asteroids
:
B
There is large space between the orbits of the planets Mars and Jupiter. A large number of small objects occupy this space revolving around the Sun. These objects are calledasteroids. The collection of asteroids in that region is called the asteroid belt.
:
B
There is large space between the orbits of the planets Mars and Jupiter. A large number of small objects occupy this space revolving around the Sun. These objects are calledasteroids. The collection of asteroids in that region is called the asteroid belt.
Answer: Option B. -> Neptune
:
B
The area enclosed by an orbit depends on the distance of the planet from the sun. Larger the distance, larger the area enclosed. Among the given planets, Neptune is the farthest planet so will have the maximum area enclosed in its orbit.
:
B
The area enclosed by an orbit depends on the distance of the planet from the sun. Larger the distance, larger the area enclosed. Among the given planets, Neptune is the farthest planet so will have the maximum area enclosed in its orbit.
Answer: Option A. -> astronomy
:
A
The study of celestial objects such as stars, planets, comets, galaxies and associated phenomena is called astronomy. It applies mathematics, physics, and chemistry in an effort to understand and thus explain the origin of these objects and their evolution, by understanding the underlying phenomena or principles.
:
A
The study of celestial objects such as stars, planets, comets, galaxies and associated phenomena is called astronomy. It applies mathematics, physics, and chemistry in an effort to understand and thus explain the origin of these objects and their evolution, by understanding the underlying phenomena or principles.
Answer: Option A. -> IAU
:
A
In 2006, the International Astronomical Union (IAU) adopted a new definition of a planet such that Pluto doesnot fit this definition. Hence,it is no longer a planet of the solar system.
:
A
In 2006, the International Astronomical Union (IAU) adopted a new definition of a planet such that Pluto doesnot fit this definition. Hence,it is no longer a planet of the solar system.
Answer: Option C. -> 4
:
C
The Earth's completion of one revolution around the Sun requires one year. There are four full years between 1 January 2001 and 1 January 2005. The Earth has therefore completed four revolutions around the Sun.
:
C
The Earth's completion of one revolution around the Sun requires one year. There are four full years between 1 January 2001 and 1 January 2005. The Earth has therefore completed four revolutions around the Sun.
Answer: Option B. -> False
:
B
There is no atmosphere on the Moon. Hence, there is no possibility of wind there.
:
B
There is no atmosphere on the Moon. Hence, there is no possibility of wind there.
Answer: Option D. -> It is the distance which light travels in one year
:
D
A light year is defined as the distance traveled by light in oneyear. For example ifa star is4 light years away from earth, it means that light from that starwill take 4 yearsto reachEarth.
:
D
A light year is defined as the distance traveled by light in oneyear. For example ifa star is4 light years away from earth, it means that light from that starwill take 4 yearsto reachEarth.