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 ...

The questions in this quiz are suitable for GCSE physics students studying longitudinal waves, transverse waves, electromagnetic waves, radio waves, microwaves, infrared and visible light and ...

Investigators observed a bidirectional relationship between socially prescribed perfectionism and insomnia symptoms among adolescents.