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Class 7 Physics

Exploring fundamental physics principles and phenomena. Learn about motion, electricity, light, heat, and natural weather phenomena through interactive examples and experiments.

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Motion and Time

Understanding different types of motion, time measurement, and speed calculations

Key Concepts

  • •Types of Motion (Uniform and Non-uniform)
  • •Speed and its Units
  • •Time Measurement Devices
  • •Distance-Time Graphs
  • •Average Speed and Instantaneous Speed

Examples

  • 💡Calculating speed of a moving car
  • 💡Reading time from different clocks
  • 💡Drawing distance-time graphs
  • 💡Understanding uniform motion

Hands-on Experiments

  • 🧪Measuring time using stopwatch
  • 🧪Creating distance-time graphs
  • 🧪Observing different types of motion
  • 🧪Calculating average speed
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Electric Current and its Effects

Understanding electric current, its effects, and basic electrical concepts

Key Concepts

  • •Electric Current and its Direction
  • •Heating Effect of Electric Current
  • •Magnetic Effect of Electric Current
  • •Chemical Effect of Electric Current
  • •Electric Circuit Components

Examples

  • 💡Heating of electric bulb
  • 💡Making electromagnet
  • 💡Electroplating process
  • 💡Simple electric circuit

Hands-on Experiments

  • 🧪Making a simple electromagnet
  • 🧪Demonstrating heating effect
  • 🧪Electroplating experiment
  • 🧪Building electric circuits
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Light

Properties of light, reflection, refraction, and optical phenomena

Key Concepts

  • •Properties of Light
  • •Reflection of Light
  • •Refraction of Light
  • •Dispersion of Light
  • •Formation of Images

Examples

  • 💡Reflection in mirrors
  • 💡Refraction through glass
  • 💡Rainbow formation
  • 💡Image formation by lenses

Hands-on Experiments

  • 🧪Demonstrating reflection
  • 🧪Observing refraction
  • 🧪Creating rainbow with prism
  • 🧪Image formation experiments
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Heat

Heat transfer, temperature measurement, and thermal effects

Key Concepts

  • •Heat and Temperature
  • •Heat Transfer (Conduction, Convection, Radiation)
  • •Thermal Expansion
  • •Thermometers and Temperature Scales
  • •Effects of Heat

Examples

  • 💡Heat transfer in daily life
  • 💡Thermal expansion of materials
  • 💡Temperature measurement
  • 💡Heat effects on matter

Hands-on Experiments

  • 🧪Demonstrating heat transfer
  • 🧪Observing thermal expansion
  • 🧪Using different thermometers
  • 🧪Heat effects experiments
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Winds, Storms and Cyclones

Understanding atmospheric phenomena, wind patterns, and weather systems

Key Concepts

  • •Air Pressure and Wind
  • •Formation of Storms
  • •Cyclones and their Effects
  • •Weather Patterns
  • •Safety Measures

Examples

  • 💡Wind formation and direction
  • 💡Storm formation process
  • 💡Cyclone effects and damage
  • 💡Weather prediction

Hands-on Experiments

  • 🧪Demonstrating air pressure
  • 🧪Wind direction experiments
  • 🧪Storm formation simulation
  • 🧪Weather observation

Practice Problems

  • 📝Calculate the speed of a bicycle traveling 5 km in 20 minutes
  • 📝Draw distance-time graph for uniform motion
  • 📝Explain heating effect of electric current

Important Formulas

  • 📐Speed = Distance ÷ Time
  • 📐Average Speed = Total Distance ÷ Total Time
  • 📐Power = Voltage × Current

Learning Tips

  • 💡Practice drawing graphs regularly
  • 💡Conduct simple electrical experiments
  • 💡Observe natural phenomena around you