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Physics

DC Electricity

  • Potential and potential difference
  • Electrostatics
  • Lighting
  • Charge, circuits and current
  • Kirchoff’s laws
  • Resistance, Ohm’s law, resistivity, I=nAvq

AC Electricity and Electronics

  • Introduction to the theory of alternating currents.
  • Kirchhoff’s laws revisited
  • Overview of an AC generator
  • Frequency and periodicity
  • Sinusoidal voltages and currents
  • Angular frequency
  • Phase angle and phase difference
  • Average value of a sine wave
  • The effective value of a sine wave
  • Resistance, inductance and capacitance in a.c. circuits
  • The pure resistive circuit
  • The pure inductive circuit.
  • Inductive reactance
  • Inductive susceptance
  • The pure capacitive circuit.
  • Capacitive reactance
  • Capacitive susceptance
  • Series and parallel AC circuits
  • Impedance and admittance
  • Principles of the transformer
  • Derivation of V1/V2 = N1/N2
  • Rectification: Half wave & full wave

Operational Amplifiers

  • Examples of integrated circuits
  • Difference amplifiers
  • Large Open-loop gain
  • Large input resistance circuits
  • Power supply configuration
  • Schematics
  • Inverting and non-inverting input designs
  • Inverting amplifiers
  • Non-inverting amplifier
  • Unity gain amplifier
  • Saturated output
  • Definition of gain and the principles of negative feedback
  • Instability and frequency response
  • Comparator circuits
  • Timer applications
  • Offset control.
  • Use of relays.

Atoms Particles and Radioactivity

  • Plum pudding model
  • Evidence for subatomic particles
  • Properties of alpha and beta radiation
  • Radioisotopes
  • The nature of radioactive decay
  • Half-life and the decay constant
  • Rutherford’s alpha scattering experiment
  • The nucleus
  • Comparison of protons and neutrons
  • Evidence for quark structure
  • Definition of leptons and baryons
  • Antiparticles
  • Neutrinos
  • Gamma radiation
  • Strange and heavy particles
  • The search for new particles
  • Models for the electron
  • Energy transitions, E=hf
  • Subatomic transitions
  • The use of baryon and lepton numbers
  • Nuclear power, cases for and against
  • The Chernobyl incident

Materials

  • Solids, Liquids and Gases
  • Elasticity: Hooke’s Law, Stress, Strain and Young’s Modulus.

Mechanics

  • Linear motion with constant acceleration
  • Scalar and Vector quantities
  • Projectile Motion
  • Conservation of Linear Momentum
  • Work, Energy, Power and Efficiency
  • Use of Dimensions
  • Principle of Moments
  • Centre of Mass
  • Equilibrium

Mechanics 2

  • Dynamics
  • Circular motion, satellites, tides
  • Angular Momentum
  • Oscillation and waves, SHM
  • Diffraction
  • Fields: gravitational, electric and magnetic

Thermal Physics

  • Heat and temperature
  • Kinetic theory
  • Basic thermodynamics.

Method of Assessment: End of unit written exam