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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
The industrial revolution in England and Western Europe more than two centuries
ago was triggered by some key scientific and technological advances. What were these
advances ?


England and Western Europe invented the steam engine, electricity, the theory of gravitation and the explosives, more than two centuries ago.

Steam engines helped them in the field of heat and thermodynamics, the theory of gravitation in the field of motion and making guns and cannons. These signs of progress brought about the industrial revolution in England and Western Europe.
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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.



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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
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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
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What is Physics?

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?

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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