What produces sound? Sound is made by..., Vibration, Source, Which medium travels sound the fastest? Solid, liquid, or gas?, Solid, Gas, Can sound travel in an empty space or a vacuum room?, No, Yes, If you give more energy to a vibration, what happens to the sound? Does it become louder or softer?, Louder, Softer, A fast vibration makes a... pitch? High pitch or low pitch?, High pitch!, Low pitch!, In our experiment today, which medium travels sound the slowest? The string, the water, or the balloon?, The balloon / Gas / Air., The water/liquid, What happens if the vibration stops? Can we still hear the sound?, No! No vibration, no sound., Yes! Of Course!, When the Muadzin calls for Adhan, does he use big energy or small energy to make a loud sound?, Big energy!, Small energy!, A Qori can change his voice from heavy to high and melengking. What property of sound is that? Loudness or Pitch?, Pitch!, Loudness, During the string telephone experiment, what happens to the sound if the string is loose or not tight?, Faint / We cannot hear it clearly., Yes, we can.

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