Omega (8th grade) Physics | Sreeja

June

Force and Pressure

  • Force - Pull or Push
  • Effects of force
  • Contact forces
  • Non-contact forces
  • Pressure
  • Atmospheric pressure

Energy

  • Energy conservation law
  • Sources of energy
  • Renewable and non-renewable energy sources
  • Judicious use of energy

July

Matter

  • Solids
    • Cohesive force
    • Arrangement of molecules
  • Liquids
    • Surface tension
    • Liquid meniscus
    • Conduction and Convection
    • Fluid pressure
    • Archimedes principle
  • Gases
    • Atmospheric pressure
    • Vacuum
    • Vacuum pump
    • Lift pump

August

Friction

  • Force of Friction
  • Factors affecting friction
  • Friction - necessary evil
  • Ways of increasing and reducing friction

Sound

  • Sound produced by vibration
  • Sound needs a medium for propagation
  • Human ear
  • Amplitude and frequency
  • Loudness and pitch
  • Infrasonic and ultrasonic sounds
  • Noise and music
  • Noise pollution

September

Static electricity

  • Charged atoms
  • The electroscope
  • Induction of charges
  • Electrical conductors and insulators
  • Lightning
  • Applications of static electricity

Magnetism

  • Recap of poles, attraction and repulsion
  • Multiple tiny magnets lining up model

October, November

Effects of electric current

  • Electrolysis and electroplating
  • Electromagnets
  • Electromagnetic induction
  • Heating effect

December

Structure of earth

  • Composition of different layers
  • Earth’s magnetism
  • Natural phenomena (lightning, earthquake, volcanoes)

January

Light

  • Laws of reflection
  • plane mirrors with ray diagram
  • Convex and concave mirrors without ray diagrams
  • Pinhole camera with ray diagram
  • Refraction (qualitative)
  • Dispersion

February

Star formation and planet formation

  • Life cycle of stars
  • Accretion disk model of planet formation

March

  • Revision
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