KS4 Physics Electricity

Contents

Permanent and induced magnetism, magnetic forces and fields

Magnetism

• Magnets
  • Poles
• Permanent Magnet
• Induced Magnet
• Magnetic Field
  • Magnetic Flux Density
  • Tesla
• Compass
• Earth's Magnetic Field

Magnetic effects of currents and the motor effect

• Wire
• Solenoid
• Electromagnets

Higher

• Motor Effect
• Fleming's Left Hand Rule
• D.C. Motor

Induced potential, transformers and the national grid

• Generator Effect
• Lenz's Law
• Alternator
• Dynamo
• Transformers

Microphones and speakers; oscillating currents in detection and generation of radiation

• Microphone
• Speaker