Waves

• Waves transfer energy by oscillations.
• They can be transverse or longitudinal.
• In transverse waves oscillations are perpendicular to the direction of energy transfer.
• In longitudinal waves oscillations are parallel to the direction of energy transfer.
• When two peaks overlap their displacements are added together.
• When two troughs overlap their displacements are subtracted.
• The wavelength of a wave is the distance between two consecutive peaks or troughs.
• The frequency of a wave is the number of complete waves per second measured in Hz.
• The amplitude of a wave is its maximum displacement from the equilibrium position.