Science: The Universe

State Council of Educational Research and Training, Tamil Nadu (2020) Science: The Universe. [Teaching/Learning Resource]

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In the earlier days, before the invention of astronomical instruments, people thought that Earth is the centre of all the objects in the space. This was known as the geocentric model, held by Greek astronomer Ptolemy (2nd Century), Indian astronomer Aryabhatta (5th Century) and many astronomers around the world. Later Polish astronomer Nicolaus Copernicus proposed the heliocentric model (helios = Sun), with Sun at the centre of the solar system. Invention of the telescope in the Netherlands, in 1608, created a revolution in astronomy. In this lesson, we will study about the building blocks of the universe, Kepler's laws of motion, time period of satellites and International Space Station (ISS).

Item Type: Teaching/Learning Resource
Program: A publication under Free Textbook Programme of Government of Tamil Nadu
Learning outcomes: After completing this lesson, students will be able to � know the evolution of the universe. � understand the building blocks of the universe. � know more about solar system. � know Kepler’s laws of motion. � calculate the orbital velocity and the time-period of satellites. � know about International Space Station.
Access: Open
Uncontrolled Keywords: Physics
Subjects: Science General
Curriculam Level: 4. Junior Secondary
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Depositing User: COL Staff
Date Deposited: 11 Apr 2021 05:51
Last Modified: 22 Apr 2021 00:46

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