Geography · Physics

Geodesy and Celestial Mechanics

984 Questions

Geodesy and celestial mechanics questions explore Earth measurements, great circles, and planetary motions. These concepts form a crucial part of physical geography and astronomy in competitive exams. Practice these questions to grasp longitudinal and latitudinal calculations.

Longitude and latitude calculationsGreat circle conceptEarths axial precessionLagrangian pointsAtmosphere boundary

Geodesy and Celestial Mechanics Questions

Multiple choice

The size of moon is ______ of the earth.

  1. 1/2

  2. 1/8

  3. 1/4

  4. 1/6
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Moon's diameter is approximately 3,474 km, while Earth's diameter is about 12,742 km. This makes the Moon roughly one-fourth the size of Earth.

Multiple choice

1 light year =

  1. 9.46 × 1015 km

  2. 9.46 × 1012 km

  3. 9.46 × 1014 km

  4. 9.46 × 1016 km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A light year is the distance light travels in a vacuum in one year, approximately 9.46 trillion kilometers, or 9.46 x 10^12 km.

Multiple choice

The latitude of a point on earth is measured by the distance in

  1. kilometres from the Equator

  2. angle from the Equator

  3. angle from the Poles

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

Latitude is defined as the angular distance of a point on the Earth's surface north or south of the Equator. It is measured in degrees, minutes, and seconds, not in linear distance units like kilometers.

Multiple choice

The earth is

  1. spherical

  2. oblate spheroid

  3. elliptical

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

The Earth is not a perfect sphere because of its rotation, which causes a bulge at the equator and flattening at the poles. This shape is scientifically defined as an oblate spheroid.

Multiple choice

Which of the following statements is incorrect?

  1. The planet closest to the sun is much hotter than the planet farther away from it.

  2. Mercury is hotter than Venus.

  3. Places closer to the Equator are colder than the places closer to the Poles.

  4. Mountains can change or even stop wind.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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Multiple choice

The boundary line between the USA and Canada is the

  1. 49th parallel

  2. 38th parallel

  3. 12th parallel

  4. 17th parallel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The 49th parallel north is the border between the United States and Canada from the Lake of the Woods to the Strait of Georgia. It is the longest undefended border in the world.