Sound

Sound

1. Properties of sound

   • Transmission
     • Sound travels through different mediums in different directions
   • Reflection
     • When an object does not transmit the sound it is reflected back and heard again by our ears.
       • This is called echo.
   • Absorption
     • Sound can be absorbed by different objects.

2. Characteristics of sound

   • Intensity
     • Strong sounds. Weak sound
   • Pitch
     • Helps us to distinguish where the sound comes from.
   • Tone
     • High tones.Low tones.

3. What is sound?

   • https://www.youtube.com/watch?v=3-xKZKxXuu0
   • Sound originates from the vibration of objects.

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