# Education

A Life Long Journey

## Interesting You Tube Videos on Science

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On this page I will be providing the links of You Tube Videos on Science and related topics that I liked
1. Weather and Climate
2. Theory of Relativity: This is a very good video on The Theory of Relativity.
3. Quantum Mechanics: A good video on the mysteries of the Microscopic World and the Quantum Mechanics
4. Physics - Evolution of Ideas: In this video you will understand the evolution of ideas from the time of Galileo to the Present Day Knowledge. You will also understand that "WHAT IS PHYSICS?"

Those students who are desirous of studying Physics and Maths from me can click here.

For any help or query you can contact me (J.P.Sinha) on my mobile +91 9871 222 426 (it is a New Delhi mobile)Please call only between 8.00am and 10.00am IST

Other relevant articles :

1. Part-1:-This explains how you can begin your preparation when you enter class- 11th .
2. Part-2: This explains how you can give your preparation a good finish.
3. Part-3 :-This explains how you can master problem solving in PHYSICS and MATHS in Board Exam.
4. Studying for IIT-JEE after passing the 12th board:-In this article I have written my advices for 12th pass students who are dropping one year to preparing for IIT-JEE.
5. List of all my articles on IIT-JEE/PMT preparation:-This page contains the list of all the articles written by me on IIT-JEE and PMT preparation.

## Physics Quiz-1

We all know about the Archimedes Principle: in simple language, it says that if an object is immersed in a liquid then the liquid exerts on that object a force which acts on the object in the vertically upward direction, the magnitude of this force is equal to the weight of the liquid displaced by the object. This force is called the buoyant force of liquid. It is because of this force that many things float on water.
My question to all the students visiting this blog is that "why is Archimedes Principle correct?" Can you explain the mechanism on the basis of which we can expect or predict the generation of buoyant force that a liquid exerts on any object immersed in it?Does gravity play any role in this case? - if yes then explain what role. Will Archimedes Principle be applicable inside a satellite circling the earth?
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For reading my articles on IIT-JEE preparation go to the List of all my articles.