SOUND PRAC - GR 9 by Lizelle Swanepoel https://padlet.com/lizellexs/pgjxtn0gbg03e8ev en-us 2021-05-24 20:08:19 UTC 2026-01-24 12:06:49 UTC hello@padlet.com https://padlet.net/icons/png/1f399.png SPEED OF SOUND PRAC lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555221777 2021-05-24 20:09:10 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555221777 lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555222427 2021-05-24 20:09:26 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555222427 SOUND WAVES lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555240313 Sound waves are pressure waves.
  • Pressure is force per unit area.
  • Hence, sound causes matter to vibrate.
  • Illustrated in video below:
]]> 2021-05-24 20:16:25 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555240313 Singing Rijke Tubes lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555241847 2021-05-24 20:17:00 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555241847 Build a Ruben’s Tube lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555247677 2021-05-24 20:19:17 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1555247677 RUBEN'S TUBE BUILD! lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562981141 2021-05-26 21:08:38 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562981141 lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562982313 2021-05-26 21:09:13 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562982313 lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562985334 2021-05-26 21:10:46 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562985334 lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562996623 2021-05-26 21:16:30 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562996623 lizellexs https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562999466 2021-05-26 21:17:57 UTC https://padlet.com/lizellexs/pgjxtn0gbg03e8ev/wish/1562999466