Science General ยท Geography

Astronomy and Celestial Phenomena

1,884 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

Earth's rotation causes everything below except...

  1. night and days

  2. global winds

  3. sunrise and sunset

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

Earth's rotation on its axis causes the cycle of day and night, sunrise and sunset, and affects global wind patterns via the Coriolis effect. Seasons are caused by the Earth's axial tilt and its revolution around the sun, not its rotation.

Multiple choice

Earth orbits around the sun once every....

  1. 365 days

  2. Month

  3. Week

  4. 365.25 Days
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Earth takes approximately 365.25 days to complete one orbit around the Sun. This extra quarter day is why we add a leap day every four years.

Multiple choice

What causes the seasons?

  1. Earth's Orbit

  2. Earth's tilt on axis

  3. Earth's distance from the sun

  4. Earth's Oceans
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The seasons are caused by the 23.5-degree tilt of the Earth's axis as it orbits the Sun, which changes the angle and duration of sunlight hitting different hemispheres.

Multiple choice

One revolution around the sun is called:

  1. an hour

  2. a day

  3. a week

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

A revolution is the movement of one object around another. Earth's revolution around the sun takes approximately 365 days, or one year.

Multiple choice

What cause the Day/Night cycle?

  1. Earth revolving around the sun

  2. Earth spinning on its axis

  3. Earth changing seasons

  4. Earth slowing down
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The day and night cycle is caused by the Earth rotating on its axis, which takes about 24 hours.

Multiple choice

When Earth revolves, it is:

  1. spinning on its axis

  2. traveling around the moon

  3. traveling around the sun

  4. traveling around Mars
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Revolution refers to the orbital motion of one body around another. Earth revolves around the sun.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Neap tides, i.e., small tides are caused when _____________________.

  1. Sun, and moon are at right angles

  2. Sun, earth and moon are in one line

  3. There is new moon

  4. There is full moon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Neap tides occur when the sun and moon are at right angles relative to the earth, causing their gravitational forces to partially cancel each other out, resulting in lower high tides.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Spring tides are caused, when _____________________.

  1. The earth, moon and sun are in a line

  2. The moon and sun are on a line

  3. The sun and moon are at right angles to each other and the earth is at the centre

  4. There is new moon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spring tides occur when the earth, moon, and sun are aligned, causing their gravitational forces to combine and produce higher high tides and lower low tides.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Neap tides occur _______________.

  1. On new and full moon days

  2. On first and third quarters of the month

  3. Twice daily

  4. On every full moon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neap tides occur during the first and third quarters of the moon phase, when the sun and moon are at right angles to the earth.

Multiple choice evs sun and planets moon the moon's path in the sky the moon

Fill in the blank:

During one synodic month, the Moon takes ______ complete revolution around the Earth with respect to the background stars.

  1. $1$
  2. $0.5$
  3. $2$
  4. $0.25$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The time taken by the Moon to complete one revolution around the Earth with reference to the background stars, is called a synodic month.
Multiple choice evs sun and planets moon the moon's path in the sky the moon

On which day is the whole disc of the Moon visible?

  1. New moon day

  2. Full moon day

  3. Half moon day

  4. Crescent moon day
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

On a full moon day, the entire bright or illuminated part of the Moon faces the Earth. Hence it is visible as a whole disc.