Science General · Geography

Astronomy and Celestial Phenomena

1,839 Questions

This section provides practice questions on astronomy and celestial phenomena, focusing on eclipses, planetary movements, and tides. These concepts are commonly tested in general science sections of various competitive exams. Use this hub to practice questions related to the Earth, Moon, and solar system dynamics.

Solar and lunar eclipsesEquinoxes and solsticesPlanetary movementsOcean tidesCoriolis effectMeteor showers

Astronomy and Celestial Phenomena Questions

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

Sunspots on the photosphere are due to.

  1. Eclipses caused by planets

  2. Comparatively cooler regions

  3. Granulation's

  4. Cloudy weather on the earth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sunspots are temporary phenomenon on the sun photosphere that appears as spots darker than the surrounding area.

They are regions of reduced surface temperature. 
Answer is $B$

Multiple choice physics life cycle of stars evolution and end stages of stars the stars stars

The constellation of stars appear at different positions in the sky at different times during night mainly ________________________.

  1. Because earth rotates about its axis

  2. Because Earth revolves round the sun

  3. Because of optical illusion

  4. Because celestial bodies are changing their positions all the time
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The apparent motion of stars and constellations across the sky during the night is primarily caused by the rotation of the Earth on its axis, which makes the celestial sphere appear to rotate in the opposite direction.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

The rotation of earth affects the direction of _________.

  1. Cyclone

  2. Anticyclone

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the absence of rotation, the wind tends to blow from areas of high pressure to areas of low pressure. The stronger the pressure differences between a high-pressure system and a low-pressure system, the stronger the wind. The coriolis force caused by Earth's rotation gives winds within high-pressure systems their clockwise circulation in the northern hemisphere as the wind moves outward and is deflected right from the center of high pressure and anticlockwise circulation in the southern hemisphere as the wind moves outward and is deflected left from the center of high pressure. Friction with land slows down the wind flowing out of high-pressure systems and causes wind to flow more outward from the center.

Multiple choice free, damped and forced oscillations free, forced and damped oscillations oscillations oscillation and waves physics

The orbital motion of the earth, around the sun is 

  1. periodic but not oscillatory

  2. oscillatory but not periodic

  3. neither periodic not oscillatory

  4. both periodic and oscillatory
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The orbital motion of the earth around the sun is not an oscillatory motion as it is not a two and fro motion about a mean position. But it is a periodic motion.

Multiple choice political science transgender / third gender transgender achieving equality moving towards equality

__________  occur according to the laws of nature.

  1. The rising and setting of the sun

  2. The rising and falling of the tides

  3. The phases of the moon

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Things occur according to the law of nature are as follows:-

1. Falling of leaves from trees
2. Blooming of flowers
3. The rising and setting of the sun.
4. The phase of the moon.
5. The rising and falling of tides.
6. An occurrence of volcanoes and earthquake.
7. An occurrence of rain and snowfall.

Multiple choice political science transgender / third gender transgender achieving equality moving towards equality

Among these, which are nature laws?

  1. Rising and setting of the sun, phases of moon

  2. Change in the seasons

  3. Law of gravity

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Natural occurrences follow nature laws. We cannot change the laws of nature. The rising and setting of the sun and the change in the seasons never stop. The law of gravity does not change. The rising and falling of tides, the phases of moon all of these occur according to the laws of nature.

Multiple choice chemistry environmental chemistry biochemistry and the environment green chemistry strategies to control environmental pollution and green chemistry

All changes in the weather are caused by the:

  1. Earth

  2. Sun

  3. Moon

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The energy that the Earth receives from the Sun is the basic cause of our changing weather. Solar heat warms the huge air masses that comprise large and small weather systems.However, at higher altitudes, the atmosphere reacts strongly to changes in solar activity.

Multiple choice physics primary concept of force and energy contact and non-contact forces comparing force in magnetic, electric and gravitational fields identifying forces

Does moon have its own gravity?

  1. No

  2. Yes

  3. Not known yet

  4. Only during full moon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gravity is not a property of the earth alone. Every object in the universe exerts a force on every other object. This is called gravitational force. Naturally, moon also has its own gravity.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

Mention the sequence of the position of the sun, earth, and moon in lunar eclipse.

  1. Sun, Earth, Moon

  2. Earth, Moon, Sun

  3. Moon, Sun, Earth

  4. Sun, Moon, Earth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the sun, Earth and moon are aligned (in "syzygy") exactly, or very closely so, with the Earth in the middle. 

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

The spring tide occurs when the moon, the sun and the earth make in angle of _______.

  1. $180^o$
  2. $90^o$
  3. $45^o$
  4. $33^o$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The spring tide occurs when the moon, the sun and the earth make in angle of $180^0$.

They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon. During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

Neap tides are produced in the first and third quarters of the moon. Then _______.

  1. Moon and the Sun are in conjunction with the other planets

  2. Moon and the Sun are in opposition with each other

  3. The attractions of the Sun and the Moon are at right angles to each other

  4. The Moon and Sun are in quadrant position to each other
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Neap tides are produced in the first and third quarters of the moon. Then the attractions of the Sun and the Moon are at right angles to each other.

Neap Tides
During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other. The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are weak tides.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

During full moon _________ tides occur.

  1. neap

  2. spring

  3. high

  4. low
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as a spring high tide. Spring tides are especially strong tides (they do not have anything to do with the season Spring). They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

On new moon and full moon days _______ occurs.

  1. neap tide

  2. spring tide

  3. high tide

  4. low tide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as a spring high tide. Spring tides are especially strong tides (they do not have anything to do with the season Spring). They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

When the earth and the sun are in a straight line and the moon is at right angle to the earth, the _________ tide occurs.

  1. high tide

  2. low tide

  3. spring tide

  4. neap tide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Seven days after a spring tide, the sun and moon are at right angles to each other. When this happens, the bulge of the ocean caused by the sun partially cancels out the bulge of the ocean caused by the moon. This produces moderate tides known as neap tides, meaning that high tides are a little lower and low tides are a little higher than average. Neap tides occur during the first and third quarter moon, when the moon appears "half full."