Physics Curriculum for Quiz – Level 1
1. Light
- Reflection: Laws of reflection, plane mirror image characteristics (virtual, erect, laterally inverted).
- Human Eye: Parts (cornea, iris, lens, retina), vision process, and defects (night blindness).
- Optical Phenomena: Dispersion (rainbows), kaleidoscopes, and Braille for the visually challenged.
2. Combustion and Flame
- Combustion: Conditions required (fuel, air, heat), ignition temperature, and types (rapid, spontaneous, explosive).
- Flame: Zones of a candle flame (luminous/non-luminous).
- Fire Safety: Principles of fire extinguishers (water, carbon dioxide).
- Fuels: Calorific value and environmental impact (global warming, acid rain).
3. Force and Pressure
- Force: Effects (change in speed/shape), contact forces (friction, muscular), and non-contact forces (magnetic, gravitational).
- Pressure: Relationship between force and area.
- Fluid Pressure: Atmospheric pressure and pressure exerted by liquids.
4. Friction
- Mechanism: Interlocking of surfaces.
- Types: Static, sliding, and rolling friction.
- Application: Advantages (walking, gripping) vs. disadvantages (wear, heat).
- Control: Methods to increase (treads) or decrease (lubricants, streamlining) friction.
5. Sound
- Propagation: Needs a medium (solid, liquid, gas); cannot travel in a vacuum.
- Characteristics: Amplitude (loudness), frequency (pitch), and time period.
- Human Ear: Structure (outer, middle, inner) and mechanism of hearing.
- Noise: Audible range (20-20,000 Hz), noise pollution, and control measures.