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Comprehensive IGCSE Study Notes for Mathematics, Chemistry, Physics, and Economics
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In-Depth IGCSE Study Notes These comprehensive study notes are created to help you excel in your IGCSE exams. They cover key subjects including Mathematics, Chemistry, Physics, Economics, and more. Here’s what you’ll find in these notes: Detailed Summaries: Each topic is explained clearly...

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Document information

  • September 7, 2024
  • 2
  • 2024/2025
  • Lecture notes
  • Mr.sim
  • All classes

Subjects

  • revision
  • class notes
  • igcse
  • gcse
  • exam preparations
  • physics
  • practice questions
  • study guide

Written for

  • Secondary school
  • IGCSE Physics
  • 1
All documents for this subject (3)

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Energy Resources and Energy Transfer: A
Comprehensive Guide
1. Types of Energy

● Kinetic Energy: Energy of motion (e.g., a moving car)
● Potential Energy: Stored energy (e.g., gravitational potential energy, chemical
energy)
● Thermal Energy: Heat energy (due to particle motion)
● Electrical Energy: Energy from electric charges
● Light and Sound Energy: Forms of radiant energy

2. Conservation of Energy

● Principle: Energy cannot be created or destroyed, only transformed.
● Example: A falling object converts gravitational potential energy to kinetic energy.

3. Energy Transfer

● Conduction: Heat transfer through solids (e.g., touching a hot stove)
● Convection: Heat transfer in fluids (e.g., boiling water)
● Radiation: Heat transfer through electromagnetic waves (e.g., sunlight)

4. Work Done and Energy Transfer

● Work Done: The transfer of energy due to a force acting over a distance.
● Formula: Work Done = Force × Distance
● Unit: Joules (J)

5. Power and Efficiency

● Power: The rate at which energy is transferred.
● Formula: Power = Work Done / Time
● Unit: Watts (W)
● Efficiency: The ratio of useful energy output to total energy input.

6. Energy Resources

● Renewable Energy: Resources that can be replenished (e.g., solar, wind,
geothermal, tidal, hydroelectric)
● Non-Renewable Energy: Resources that cannot be replaced (e.g., fossil fuels,
nuclear energy)

7. Thermal Energy and Insulation

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