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
  • The Doppler effect
• Electromagnetism:
  • Discovery of magnetism and magnetic fields
  • Measuring magnetic fields
• Battery and Electrochemical Experiments:
  • Discovery of batteries (Zinc-copper reduction-oxidation cells)
  • Measurement techniques using galvanometers
  • Experimental variables: electrolyte type (acid, salt, water, vinegar), electrode distance, electrode surface area, and temperature
  • Polarity and electrode reversal
  • The relationship between batteries and electromagnetism