ASPhysicsOCR4. Electrons, Waves & Photons

4. Electrons, Waves & Photons (OCR AS Physics)

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4.1 Charge & Current

  1. 4.1.1 Electric Current & Charge
  2. 4.1.2 Electric Current & Electron Flow
  3. 4.1.3 Kirchhoff's First Law
  4. 4.1.4 Current in a Current Carrying Conductor
  5. 4.1.5 Conductors, Semiconductors & Insulators
  6. 4.1.6 Circuit Symbols & Diagrams

4.2 Resistance & Resistivity

  1. 4.2.1 Resistance
  2. 4.2.2 Ohm's Law & I-V Characteristics
  3. 4.2.3 Investigating Electrical Characteristics of Components
  4. 4.2.4 The Light-Dependent Resistor (LDR)
  5. 4.2.5 Resistivity
  6. 4.2.6 Determining the Resistivity of a Metal
  7. 4.2.7 Thermistors

4.3 Series & Parallel Circuits

  1. 4.3.1 Power
  2. 4.3.2 Electrical Energy
  3. 4.3.3 Kirchhoff's Second Law
  4. 4.3.4 Kirchhoff's Laws in Circuits
  5. 4.3.5 Resistors in Series & Parallel Circuits
  6. 4.3.6 Series & Parallel Circuits
  7. 4.3.7 Circuits with Multiple Sources of e.m.f

4.4 EMF & Internal Resistance

  1. 4.4.1 E.m.f & Internal Resistance
  2. 4.4.2 Calculating E.m.f
  3. 4.4.3 Determining Internal Resistance
  4. 4.4.4 E.m.f & Potential Difference
  5. 4.4.5 Energy Transfer

4.5 Potential Dividers

  1. 4.5.1 Potential Divider Circuits
  2. 4.5.2 Variable Resistance Components
  3. 4.5.3 Investigating Potential Divider Circuits

4.6 Longitudinal & Transverse Waves

  1. 4.6.1 Progressive Waves: Longitudinal & Transverse
  2. 4.6.2 Calculating Frequency
  3. 4.6.3 The Wave Equation
  4. 4.6.4 Graphical Representations of Transverse & Longitudinal Waves
  5. 4.6.5 Intensity of a Wave

4.7 EM Waves

  1. 4.7.1 The Electromagnetic Spectrum
  2. 4.7.2 Polarisation

4.8 Refraction & Reflection

  1. 4.8.1 Refraction
  2. 4.8.2 Total Internal Reflection
  3. 4.8.3 Wave Phenomena

4.9 Superposition & Stationary Waves

  1. 4.9.1 Superposition
  2. 4.9.2 Graphical Representation of Superposition
  3. 4.9.3 Interference
  4. 4.9.4 Two-Source Interference
  5. 4.9.5 Young Double-Slit Experiment
  6. 4.9.6 Determining the Wavelength of Light
  7. 4.9.7 Stationary Waves
  8. 4.9.8 Stationary vs Progressive Waves
  9. 4.9.9 Nodes & Antinodes
  10. 4.9.10 Determining the Speed of Sound in Air in a Resonance Tube
  11. 4.9.11 Harmonics

4.10 The Photoelectric Effect

  1. 4.10.1 The Photoelectric Effect
  2. 4.10.2 Demonstrating the Photoelectric Effect
  3. 4.10.3 The Photoelectric Equation
  4. 4.10.4 Work Function & Threshold Frequency
  5. 4.10.5 Maximum Kinetic Energy & Intensity

4.11 Photons & Wave-Particle Duality

  1. 4.11.1 The Photon
  2. 4.11.2 The Electronvolt
  3. 4.11.3 Determining the Planck Constant
  4. 4.11.4 Electron Diffraction
  5. 4.11.5 The de Broglie Equation

4.1 Charge & Current

  1. Multiple Choice Questions

4.2 Resistance & Resistivity

  1. Multiple Choice Questions
  2. Structured Questions

4.3 Series & Parallel Circuits

  1. Multiple Choice Questions
  2. Structured Questions

4.4 EMF & Internal Resistance

  1. Multiple Choice Questions
  2. Structured Questions

4.5 Potential Dividers

  1. Multiple Choice Questions
  2. Structured Questions

4.6 Longitudinal & Transverse Waves

  1. Multiple Choice Questions
  2. Structured Questions

4.7 EM Waves

  1. Multiple Choice Questions

4.8 Refraction & Reflection

  1. Multiple Choice Questions
  2. Structured Questions

4.9 Superposition & Stationary Waves

  1. Multiple Choice Questions
  2. Structured Questions

4.10 The Photoelectric Effect

  1. Multiple Choice Questions
  2. Structured Questions

4.11 Photons & Wave-Particle Duality

  1. Multiple Choice Questions
  2. Structured Questions
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