Waves can transfer energy through a medium and come in different types. A longitudinal wave transfers energy through a medium by causing particles to vibrate parallel to the direction of energy transfer, like sound waves. A transverse wave transfers energy through a medium by causing particles to vibrate perpendicular to the direction of energy transfer, like water waves. The key parts of a wave include its amplitude, wavelength, frequency, and period. The speed of a wave can be calculated by multiplying its frequency and wavelength.

1. Waves and Vibrations

28. Wave Speed

30. Wave Speed

31. Wave Speed