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Physical World

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Physics Part I

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Physics

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Attempt to formulate your ‘moral’ views on the practice of science. Imagine yourself stumbling upon a discovery, which has great academic interest but is certain to have nothing but dangerous consequences for the human society. How, if at all, will you resolve your dilemma ?

In our view a type of discovery which is of great academic interest but harmful for human society should not be made public because Science is for the society, society is not for science. 

Any discovery that is being made by the researchers should be brought to the public only if the discoveries will not have any further consequences if used by the common man in the society. 
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Name some of the popular branches of science.

Some of the popular branches of science are:
  1. Physics
  2. Chemistry
  3. Botany
  4. Zoology
  5. Geology
564 Views

What is Physics?

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

882 Views

What is science?

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.



943 Views

What do you understand by matter? What are its different phases? 

Any thing that possesses weight and occupies space is called matter.

The three phases of matter are: 

  1. Solid state
  2. Liquid state
  3. Gaseous state
483 Views

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

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. 
455 Views