9AmplitudeThe maximum distance the wave vibrates from its rest position.(large amplitude= more energy)
10Loudness of sound is related to amplitude. Amplitude of SoundLoudness of sound is related to amplitude.
11WavelengthThe distance between any two adjacent crests or compressions in a series of waves.
12Frequency The number of waves produced in a certain amount of time. (the higher the frequency, the shorter the wavelength)Higher frequency means more energyFrequency is measured in Hertz (Hz) waves per second.
13Frequency of SoundFrequency of sound is called pitch. This determines how high or low a sound is.