This is the Best Physics Demonstrations Website I have Found: Loaded with Videos, this Site Shows that Physics Really can be for Everyone

Here is a truly amazing site for physics experiments.  I could go on and on about how much is here, but rather than do that, I'm just going to list them all.  I encourage you to visit this site.  I am not a scientist, but I found the videos very informative.  Here is the complete list:

• Astronomy: eye model, lunar eclipse
• Electricity and Magnetism
  
  • Coulomb Force: pith balls, volta's hailstorm
  • Induction: induced current, eddy currents, rail gun 
  • Lenz's Law: induced current, rail gun
  • Lorentz Force: eddy currents, bending electron beam, electron charge-over-mass ratio
  • Magnetic Fields: electron charge-over-mass ratio, rail gun
  • Magnetic Field Lines: field line demonstrators 
  • Static Charge: Van de Graaf Sparks, hair raising, volta's hailstorm 
  • Van de Graaf Machine: hair raising, ion wind, Van de Graaf Sparks, volta's hailstorm
• Fluid Dynamics 
  
  
  • Bernoulli Effect: Bernoulli floating ball 
  • Buoyancy: archimedes' principle
  • Pressure: air cannon. Bernoulli floating ball, Boyle's law, imploding pop can, Magdeburg hemispheres, pressure head, radiometer, water rocket 
  Mechanics 
  • Acceleration: centripetal force, spinning ball, timed free fall, waiter's tray
  • Circular motion: centripetal force, spinning ball, waiter's tray
  • Collisions: double ball drop, happy and sad balls, newton's pendulum 
  • Energy: happy and sad balls, newton's pendulum, the nose crusher 
  • Forces: centripetal force, force table, friction coefficient, kinetic friction, spinning ball, spring constant, static friction 
  • Friction: friction coefficient, kinetic friction, static friction 
  • Momentum: double ball drop, newton's pendulum, water rocket 
  • Newton's Laws: force table, kinetic friction, spinning ball, static friction 
  • Projectiles: air cannon, the monkey and the hunter, water rocket 
  • Vectors: force table 
• Modern Physics
  • Alpha Particles: alpha particles in a cloud chamber
  • Atoms: electron standing waves, spectral lines 
  • Cloud Chamber: alpha particles in a cloud chamber 
  • Nuclear Reactions: alpha particles in a cloud chamber, mousetrap reactor 
  • Relativity: Einstein Revealed 
• Optics 
  • Absorption: radiometer 
  • Interference: soap film interference, spectral lines 
  • Lenses: eye model 
  • Reflection: mirage mirror, internal reflection 
  • Refraction: internal reflection 
• Oscillations and Waves 
  • Standing Waves: electron standing waves, standing waves and resonance, standing waves in a spring 
  • Coupled Oscillations: coupled oscillator, Wilberforce pendulum 
  • Doppler Shift: doppler shift 
  • Interference: wave interference 
  • Longitudinal Waves: transverse and longitudinal waves 
  • Reflection:  impedance matching, wave reflection 
  • Resonance: coupled oscillator, resonant strips, standing waves and resonance, standing waves in a spring 
  • Simple Harmonic Motion: simple harmonic oscillator 
  • Superposition Principle: wave interference 
  • Transverse Waves: impedance matching, transverse and longitudinal waves, wavelength and frequency, wave speed 
• Thermodynamics 
  • Conduction: heat conduction 
  • Phase Transisions: excessive pressure buildup, imploding pop can 
  • Kinetic Theory: Brownian Motion, diffusion, motion of molecules in a gas, radiometer, solids and liquids, temperature of a gas 
  • Gas Equations: Boyle's law, excessive pressure buildup 
  • Radiation: radiometer