Chapter 3 Unit F Properties of sound (Grade 5)
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17 terms
Terms | Definitions |
|---|---|
 What is the order in which you SEE and HEAR thunder and lighting | Lighting is followed by thunder |
| If someone says "Turn it Down" that person means you should DECREASE what part of the SOUND | Amplitude |
| Rarefraction | Is the region where there are fewer particles than normal |
| A high sound is always high because of | Frequency |
| sound travels through cold weather | slower because the paticles take longer to collide |
| sound travels through hot weather | faster because the particle move faster to collide |
| sound travels through metal | faster because there is more matter and the particle are more compact |
| sound can not travel through a vacuum | because there is no matter/air in a vacuum |
| vibrations | are back and forth movements in matter (sound) |
| Crest of a wave represents the | compression of the wave |
| Basic tones mixed together with softer and higher sound | overtones |
| a keyboard is broken up into | Octaves |
| A part of a sound waves where the particles have been pushed closer is | compressions |
| The human voice produces in a wide range | Frequencies |
| The low voices sing a C at 132 hertz - two | Octaves Lower |
| Someone with long think vocal cords may sing tones at even lower | Pitch |
| Three Parts of the Waves used to determine the kind of waves are | Wavelength, Amplitude, Frequency |
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