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Physical World

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Question
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What is science?

Solution

The word Science originates from the Latin verb Scientia meaning 'to know'. 

Science is a systematic attempt to understand natural phenomena in as much detail and depth as possible, and use the knowledge so gained to predict, modify and control phenomena. Science is exploring, experimenting and predicting from what we see around us.



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Name some of the popular branches of science.

Solution

Some of the popular branches of science are:

  1. Physics
  2. Chemistry
  3. Botany
  4. Zoology
  5. Geology

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What is Physics?

Solution

Physics is that branch of science which deals with the study of properties of matter, energy and their interactions.

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In Physics, matter and energy are used together in an equation. What is the relation between them?

Solution

Yes, the mass of an object is a measure of its energy content. 

The relation between mass-energy is given by, 
                              E =mc2

where, 
m = Mass of an object
c  = Speed of Light


This equation is also known as Mass-Energy Equivalence relation. 

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