Test 1 Flashcards
What is physics about
Physics is about nature.
What does physics deal with
behaviour and structure of matter
What does Physics see
Wverything physics around us like physical bodies and appearanced
what does physics mean
It comes from greek from word fyzis=nature
how is physics devided
into classical physics and modern physics
example of classical physics
force,optics,motion,electricity,energy,mamagnetism,….
example of modern physics
atomic physics,nuclear physics,theory of relativity,…
What is physical quantity
it is a property of physical boda which we can mesure
what does each physical quantity have
own symbol,own unit
name some physical quantities
mass,density,force,volume,lenght,time
what is The international system of units
its set on unit agreed on upon by international covention
its used by many coubtries in world
how is The international system of units devided (4)
base units
derived units
multiplied and partial units
supplementary units
how are derived units formed
by combianting basic units
we make them with help of physical formulas (m qubed)
name radiant and steradiant angles
radian-plane angle
steradian-solid angle
