Physics can do that...

If I though a solid ball through a glass window with the speed of light then the ball will pass through the glass window without breaking the window. Is it possible? Yes, it is possible. According to the Einstein's famous Mass-Energy relation equation. Mass can be converted to energy if the speed of the mass is comparable to the speed of light. Amazing....

Physical Quantities

The foundation of physics rests upon quantities in terms of which the laws of physics are expressed. Therefore, these quantities have to be measured accurately. Among these mass, time, length, velocity, force. density, temperature, electric current, and numerous others.

Physical quantities are often divided into two categories: base quantities and derived quantities. Derived quantities are those whose definitions are based on other physical quantities.Velocity, Acceleration and Force etc are usually viewed as derived quantities. Base quantities are not defined in terms of other physical quantities. The base quantities are the minimum number of those physical quantities in terms of which other physical quantities can defined. Typical examples of base quantities are length, mass and time.

Major Braches of Physics

Some Major fields of Physics are:

• Mechanics
• Electronics
• Nuclear Physics
• Plasma Physics
• Astro Physics
• Bio Physics
• Spectroscopy
• Solid State Physics
• Low Temperature Physics
• Quantum Physics

Simple Defination of Physics

Physics is that branch of science which deals with the properties of matter and energy along with the interaction between them. It is based on experiments, observations and quantitative measurements.

 

اردو: طبیعات سائنس کی وہ شاخ ہے جو مادہ اور توانائی کے بارے میں بحث کرتی ہے مزید یہ کہ طبیعات مادہ اور توانائی کے درمیان پائے جانے والی قوتوں اور قوانین کے بارے میں بھی بحث کرتی ہے ۔