9 AmplitudeThe maximum distance the wave vibrates from its rest position.(large amplitude= more energy)
10 Loudness of sound is related to amplitude. Amplitude of SoundLoudness of sound is related to amplitude.
11 WavelengthThe distance between any two adjacent crests or compressions in a series of waves.
12 Frequency 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.
13 Frequency of SoundFrequency of sound is called pitch. This determines how high or low a sound is.