Travelling wave

Travelling wave:

1. Waves - phet          Medium          Coupling          Equilibrium          Restoring force          The meaning of the displacement

2. Travelling wave          Profile / shape of a propagating  disturbance in a medium        Direction of  propagation              Displacement  of the particles and  illusion of the motion of the shape

3. Speed of the wave is property of the medium        Periodically oscillating  source          Wavelength

4. Simple harmonic oscillator as source      Amplitude      Frequency         Wavelength        **Velocity of the displacement    

5. Phase difference between two locations