sound waves cause air particles to vibrate back and forth; ripples cause water particles to vibrate up and down. A longitudinal wave is one in which the vibrations of the particles are parallel to ...

Amplitude, wavelength and frequency - CCEA Reflection and refraction of waves - CCEA Echoes and sonar - CCEA Electromagnetic waves and radar - CCEA ...

Most of us love a good splash in the waves at the beach. Whether we're swimming, bodyboarding, surfing, or simply watching the waves break over our feet, it's the definition of summer (or winter ...

Bikers are in a club of their own even if they don't know each other and that club includes private waves. It's called the biker wave and it's pretty simple with four total. The wave with two fingers ...