Wavelength, Frequency, Speed and Amplitude

Wavelength: This represents the distance between two successive identical points in a wave. It is usually measured in metres.
Frequency: This measures how many waves pass a point in a specific amount of time. Often, the amount of time is one second and the units of frequency are hertz (Hz).
Speed: The speed of a wave is influenced by the medium through which it travels. In air, sound travels at approximately 343 metres per second. Light and other electromagnetic waves travel at a speed of approximately 300,000 kilometres per second in a vacuum.
Amplitude: The amplitude of a wave is the maximum displacement of a point on the wave from its undisturbed position. In a sound wave, this may be the maximum compression or maximum rarefaction.

Velocity of Waves

Velocity of a wave is given by the equation: wave speed = frequency x wavelength. Speed is usually given in metres per second, frequency in hertz, and wavelength in metres.
Waves lose energy due to absorption, reflexion or transmission at a boundary.

Remember, grasp the understanding of these features. This will help you understand the properties of waves and their behaviours.