Physics archive | Science | Khan Academy

Khan Academy Physics Archive Topics

• Classical Mechanics:
  • Newton's laws of motion
  • Normal force and contact force
  • Inclined planes and friction
• Waves and Sound:
  • Introduction to mechanical waves
  • Sound properties
  • The Doppler effect
• Electromagnetism and Batteries:
  • Discovery of magnetism and magnetic fields
  • Measuring magnetic fields
  • Battery Experiments (Zinc-Copper Cell):
    • Measurement techniques (galvanometer/battery meter)
    • Variables tested: Number of turns, electrolyte type (water, vinegar, acid, salt), electrode polarity, electrode distance, electrode surface area, and electrolyte temperature.
    • Standard cell construction and electrolyte volume requirements.
    • Relationship between batteries and electromagnetism.