Thursday, 13 October 2011
Wednesday, 12 October 2011
Gravitationand space science.
- Who was Isaac Newton?
- If you were in the place of Issac Newton,what would you have done with the apple?
- What does the force of gravitation depend on?
- Who was Ptolemy? What was his contention?
- Who was Copernicus? What is heliocentric theory?
- Who was Tycho Brahe? What is his contribution?
- What did Johannes Kepler do with the data of Tycho Brahe?
- What are the fundamental forces of nature?
- Which is the weakest among them?
- What is Newton's Law?
- What are the features of Newton's law of gravitation?
- When does the value of acceleration decreases?
- when does it become zero at the center of the earth?
- Define gravitational potential at a point.
- when is it at maximum and and will have a negative value/
- What is a satellite?
- Define Escape velocity.
- Define orbital velocity.
- What do you know about geostationary satellite?
- What is the time period of the satellite?
- What is the inertial mass of a body?
- What is gravitational mass?
- What is a rocket?
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