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1_________ are mechanical waves that need a medium to be propagated 2. Sound can travel in all media but not in_________ 3. Pitch is dependent on the frequency of sound want. The higher the__________ frequency, the higher the of the sound produced 4. Our ears have parts that perform special tasks until the auditory signals reach and are interpreted by our brain Frequencies beyond the audible range are known as____________ (beyond the upper limit) and ______ (below the lower limit). 5. The three characteristics of sound_________, ______ and_______​

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Answer:

1Electro magnetic are mechanical waves that need a medium to be propagated 2. Sound can travel in all media but not in space 3. Pitch is dependent on the frequency of sound want. The higher the wave frequency, the higher the of the sound produced 4. Our ears have parts that perform special tasks until the auditory signals reach and are interpreted by our brain Frequencies beyond the audible range are known as 20 KhZ(beyond the upper limit) and 20Hz (below the lower limit). 5. The three characteristics of sound pitch, loudness and tone.

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