Motions of the Earth
Motions of the Earth
Motions Of The Earth: The Earth is constantly in motion, revolving around the Sun and rotating on its axis. These motions account for many of the phenomenon we se as normal occurrences: night and day, changing of the seasons, and different climates in different regions. With a globe ball properly mounted and rotating on its axis, the movements of the Earth around the Sun may be illustrated accurately.
Rotation: The Earth spins on its axis from West to East (counter-clockwise). It takes the Earth 23 hours, 56 minutes, and 4.09 seconds to complete one full turn. Day and night are produced by the rotation of the Earth. The speed of rotation at any point upon the equator is at the rate of approximately 1,035 miles per hour, decreasing to zero at the poles.
Revolution: While the Earth is spinning on its axis, it is revolving around the Sun in a counter-clockwise direction. The mean distance of the Earth from the Sun is about 93 million miles (150 million km) and the distance varies by 3 million miles, forming a slightly oval path. In its revolution around the Sun, Earth traverses a distance of 595 million miles in 365 days, 6 hours, 9 minutes and 9.5 seconds. This means a speed of 18 miles a second or 66,000 miles per hour (107,000 km/hr), while at the same time rotating once each set of twenty-four hours. Revolution causes unequal days and seasons on earth.Among other motions of Earth is precession or wobbling (like a spinning top) caused by the gravitational attraction of the sun and the moon.
Location Of A Place And Time On Surface Of The Earth: Any location on Earth is described by - its latitude and its longitude. Latitude and longitude are angles that uniquely define points on a sphere. They are spherical coordinates on the surface of the earth.
Latitude: Halfway between the North Pole and the South Pole is an imaginary line, the equator. The equator goes around the middle of Earth like a belt. It divides our planet into the Northern Hemisphere and the Southern Hemisphere. A number of imaginary lines are drawn around the globe parallel to the equator. These are called parallels of latitude. Latitude is measured North or South of the Equator, resulting in a range of -90 (S pole) to +90 (N pole) degrees. Each degree of latitude spans about 111 km or60 nautical miles on the earth's surface. Each degree is divided into 60 min and each min into 60 sec
Longitude: Another set of imaginary lines helps us measure distance between east and west. These are lines of longitude, Each line of longitude runs from the North Pole to the South Pole. These lines are also called meridians. Meridians are spaced farthest apart at the Equator and converge at the poles. Longitude is measured East or West of Greenwich. The International Date Line is 180° from the Greenwich Mean Time. Halfway around the Earth is 180 degree longitude. Longitude is an important factor in determining time in all parts of the world. Time alters by one hour for every 15 degrees of longitude (360/24). Time Zones am decided on the basis of meridians. Indian Standard Time, for example, is based on the local time at Allahabad at 82.5° E.
Then there are other imaginary lines apart from the longitude and the latitude. Arctic Circle runs parallel to the Equator and circles the Earth at about 66° 33' North Latitude. Antarctic Circle runs parallel to the Equator and circles the Earth at about 66° 33' South Latitude. Tropics of Cancer and Capricorn are the regions ol Earth between the Tropic of Cancer (23° 27 N) and Tropic of Capricorn (23° 27'S).
Students / Parents Reviews [20]
Third consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
