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Assistant General Science

Physics – 01

സയൻസിൽ നിന്ന് മൊത്തത്തിൽ പ്രതീക്ഷിക്കാവുന്നത് പത്ത് മാർക്കിനുള്ള ചോദ്യങ്ങളാണ്. ഫിസിക്‌സ്, കെമിസ്ട്രി, ബയോളജി എന്നീ വിഷയങ്ങളിൽ നിന്ന് കൂടിചേർന്നാണ് ഈ പത്ത് ചോദ്യങ്ങൾ വരുന്നത്.

ഒരു വിഷയത്തിൽ നിന്ന് കൂടിപ്പോയാൽ നാല് മാർക്കേ വരാൻ സാധ്യത ഉള്ളൂ എങ്കിലും ആ മാർക്കിന് വളരെയധികം പ്രാധാന്യമുണ്ട്. ഇനി അടുത്ത പതിനഞ്ച് ദിവസം സയൻസിൽ നിന്നുള്ള പാഠങ്ങൾ പഠിക്കാം. ആദ്യം ഫിസിക്സിൽ നിന്നും തുടങ്ങുന്നു.

ദ്രവ്യം, അളവുകൾ, യൂണിറ്റുകൾ തുടങ്ങിയവയാണ് ആദ്യ പാഠത്തിൽ ഉൾപ്പെടുത്തിയിരിക്കുന്നത്.

  • States of matter are

(1) Solid, (2) Liquid, (3) Gas, (4) Plasma, (5) Bose Einstein Condensate, (6) Fermionic Condensate, (7) Quark Gluon Plasma

 

  • At ultra high temperature matter exist in

Plasma state

 

  • Molecules are seen in most irregular form in

Plasma state

 

  • 99% of matter in the universe exist in

Plasma state

 

  • As per the Standard model, Elementary particles are divided into

Fermions and Bosons

 

  • As per the Standard model, Fermions are divided into

Quarks and Leptons

 

  • As per the Standard model, Bosons are divided into

Gauge Bosons and Higgs Boson

 

  • No of elementary fermions in Standard model

12

 

  • Particle made up of Quarks and Gluons are called

Hadrons

 

  • Hadrons are categorized into

Mesons and Baryons

 

  • Particles made up of quark-antiquark pair are called

Mesons

 

  • Particles made up of 3 quarks are called

Baryons

 

  • Most stable form of hadrons are

Protons and Neutrons

 

  • The term ‘God Particle’ was first coined by

Leon Lederman

 

  • The term ‘Boson’ was first coined by

Paul Dirac

 

  • Bose-Einstein condensate was first predicted by

Satyendra Nath Bose and Albert Einstein

 

  • Pure Bose-Einstein condensate was first created by

Eric Cornell and Carl Wieman

 

  • Superfluid phase formed by bosonic atoms is known as

Bose-Einstein condensate

 

  • Superfluid phase formed by fermionic atoms is known as

Fermionic condensate

 

  • Equipment used to create Higgs boson and other particles for study

Large Hadron Collider (LHC)

 

  • World largest and highest-energy particle accelerator

LHC at Geneva (Switzerland)

 

  • LHC is operated by

CERN

 

  • Energy carriers in the matter are known as

Bosons

 

  • Bosons which carry electromagnetic force

Photons

 

  • Particle which gives the property of mass to the matter is

Higgs Boson

 

  • Fundamental particle which is known as ‘God Particle’

Higgs Boson

 

  • Particle which is considered as building blocks of all life

Higgs Boson

 

  • Higgs Boson was discovered in

4th July 2012 at CERN

 

  • Unit of which fundamental quantity is same in all measuring systems

Time (Unit : Second)

 

  • Globally approved form of unit system

SI System

 

  • No of basic units in SI system

7

 

  • 7 basic units in SI system

Length : Metre (m), Mass : Kilogram (kg), Time : Second (s), Electric current : ampere (A), Temperature : Kelvin (K), Amount of substance : Mole (mol), Luminous intensity : Candela (cd)

 

  • CGS units for fundamental quantities Length, Mass and Time

Centi Meter, Gram and Second

 

  • FPS units for fundamental quantities Length, Mass and Time

Foot, Pound and Second

 

  • Parsec is a unit of

Length (1 Parsec=3.26 light year)

 

  • A physical quantity which has the only magnitude but no direction

Scalar quantity

 

  • Examples of a Scalar quantity

Mass, Length, Time, Volume, Speed, Energy, Work, Pressure, Density etc

 

  • A physical quantity which has both magnitude and direction

Vector quantity

 

  • Examples of a Vector quantity

Velocity, Momentum, Force, Acceleration, Displacement, Torque etc

 

  • Unit of Plane angle

Radian (Rad)

 

  • Unit of Solid angle

Steradian (Sr)

 

  • Unit of Celcius temperature

Degree Celcius

 

  • Unit of Energy, Work, Heat

Joule (J)

 

  • Unit of Force

Newton (N)

 

  • Unit of Power, Radiant flux

Watt (W)

 

  • Unit of Illuminance

Lux (Lx)

 

  • Unit of Electric charge

Coulomb (C)

 

  • Unit of Resistance

Ohm

 

  • Unit of Conductance

Siemens (S)

 

  • Unit of Capacitance

Farad (F)

 

  • Unit of Inductance

Henry (H)

 

  • Unit of Pressure, Stress

Pascal (Pa)

 

  • Unit of Magnetic flux

Weber (Wb)

 

  • Unit of Radioactivity

Becquerel (Bq)

 

  • Unit of Frequency

Hertz (Hz)

 

  • Unit of Electric Potential Difference, EMF

Volt (V)

 

  • Unit of Magnetic flux density

Tesla (T)

 

  • Unit of Luminous flux

Lumen (Lm)


                                                                                                         (To be Continued…)