NCERT Notes Class 6 | Geography | Motions of the Earth

Geography | Motions of the Earth NCERT Notes Class 6 Capsule Study materials Important points.


NCERT Study Notes

Geography Class 6 Chapter 3 Motion of the Earth


The Earth has two types of motions namely, rotation and revolution.
Rotation is the movement of the earth on its axis. Days and Nights take place because of rotation.
Revolution is the movement of the earth around the Sun in a fixed path or orbit. Revolution causes the change of seasons.

Orbital Plane and Circle of Illumination:

The plane formed by the orbit is known as the orbital plane.

The axis of the earth which is an imaginary line, has an angle of with its orbital plane.

The spherical shape of the Earth allows only half of the sun light to come at a time.

The portion facing the sun experiences day while the other half away from the sun experiences night

The circle that divides the day from night on the globe is called the circle of illumination.

The earth takes about 24 hrs to complete one rotation around its axis. The period of rotation is known as the Earth-day. This is the daily motion of the earth.

Revolution:

(i) The second motion of the earth around the sun in its orbit is called revolution.

(ii) It takes 365 days and 6 hours (one year) to revolve around the sun.

(iii) We consider a year as consisting of 365 days only and ignore six hours for the sake of convenience.

(iv) Six hours saved every year are likely to make one day (24 hours) over a span of four years.

(v) This surplus day is added to the month of February.

(vi) Every fourth year, February is of 29 days instead of 28 days. This year with 366 days is called a leap year.

(vii) The earth goes around the sun being inclined in the same direction throughout the year, in an elliptical orbit.


Seasons:

Seasons

(i) Seasons change due to change in the position of the earth around the sun. On the basis of change in the position of Earth, a year is divided into summer, winter, spring and autumn.

(ii) On 21st June the Northern hemisphere is tilted towards the sun. These areas receive more heat because sun rays fall directly on the tropic of Cancer.

(iii) On the other hand ,areas near the poles receive less heat as the rays of the sun are slanting.

(iv) The places beyond the Arctic Circle experience continuous daylight for about six months. As the larger portion of Northern hemisphere gets light from sun, it is summer in Northern part of equator.

Summer Solstice:

In summer season ,the regions north of the equator experience the longest day and shortest night on 21st June. It is opposite in southern hemisphere and the nights are longer than the days and is winter season there. This position of the earth is called as summer solstice.

Summer Solstice

Winter Solstice:

On 22nd December the Tropic of Capricorn gets direct rays of the sun as the South Pole tilts towards it. The days are longer with shorter nights in Southern hemisphere and it is summer in Southern hemisphere and winter in Northern hemisphere. This is called winter solstice.

Winter Solstice:

Equinox:

On 21st March and 23rd September, direct rays of the sun fall directly on the equator. During this period, the whole earth experiences equal days and equal nights because neither of the poles is tilted towards the sun. This is called an equinox.



[post_ads]

COMMENTS

Name

10th Level Prelims,25,Ancient Indian History,1,Ancient Medieval India,7,Answer Key,1,Aptitude,2,Arts and Culture,10,CBSE Notes,1,Class Notes,1,Current Affairs,4,December 2019,1,Degree Level Prelims,2,Download,1,Economics,11,Economy and Planning,17,Ezhuthachan Award,1,Facts About India,1,Featured,2,General Awareness,28,General English,3,General Knowledge,3,Geography,10,Historical Background,1,History,7,Home,8,IB Exam,1,Important Personalities,1,Important Years,1,Indian History,1,Indian Polity,3,Job Vacancy,3,KAS,83,KAS Mains,2,Kerala Administrative Service,9,Kerala Facts,5,Kerala Geography,1,Kerala History,2,KPSC,1,LDC,10,LGS,1,Mains Exam,1,Malayalam,3,Mauryan Empire,1,MCQ,24,Medieval Indian History,4,Mock Test,30,Modern Indian History,34,National Flag,1,NCERT Notes,13,PDF Notes,1,Periyar,1,Phrasal Verbs,1,Plus Two Level Prelims,2,Preliminary Exam,2,Prelims Questions,5,Previous Question Paper,21,PSC,18,Questions,1,Quotes,1,Reasoning,2,Regulating Act 1773,1,Research Centers,1,Resting Place,1,Revolt of 1857,1,Rivers,3,Social Welfare Schemes,1,Socio Religious Movement,3,Solar System,2,Study Materials,12,Syllabus,4,Tamilnadu,1,Thozhilvartha,1,VEO,11,
ltr
item
Kerala Administrative Service (KAS) Online Class Study Notes Tests | KAS Insights: NCERT Notes Class 6 | Geography | Motions of the Earth
NCERT Notes Class 6 | Geography | Motions of the Earth
Geography | Motions of the Earth NCERT Notes Class 6 Capsule Study materials Important points.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj63b9OpuYxYAjd6c5y1eXj3b8F0LmA5pEolZHn6KbkCtXI9ZxJUrTf_9TnCbSJapmoMDVn-uqCdtRNV88P-UfSEx14sTGMmnbxvegLe6ZGeUWQkS1vTeZ8-WUYu06Bu2jVjSwoXXMpvZ9p/s1600/GEO-MOTION-OF-EARTH-Ncert-class-note.jpg
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj63b9OpuYxYAjd6c5y1eXj3b8F0LmA5pEolZHn6KbkCtXI9ZxJUrTf_9TnCbSJapmoMDVn-uqCdtRNV88P-UfSEx14sTGMmnbxvegLe6ZGeUWQkS1vTeZ8-WUYu06Bu2jVjSwoXXMpvZ9p/s72-c/GEO-MOTION-OF-EARTH-Ncert-class-note.jpg
Kerala Administrative Service (KAS) Online Class Study Notes Tests | KAS Insights
https://www.kasinsights.in/2020/05/ncert-notes-class-6-geography-motions.html
https://www.kasinsights.in/
https://www.kasinsights.in/
https://www.kasinsights.in/2020/05/ncert-notes-class-6-geography-motions.html
true
4404614787135261407
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content