I had a great time at Chilton Primary School talking about sound and waves. I was there to talk how sound waves propagate in things and the kids told me about sound as vibrations, waves and that in space you don't hear it. And that to hear the sound from a table vibrating you need air between your ear and the table.
If you missed the session, this video and this page are great. And short.
We SAW sound waves from this brilliant film from NPR (national public radio) (forward to and repeat from minute 2:00): https://goo.gl/images/3Eahng .
And last but not least, I talked a bit about Chladni plates (discovered by the 1780s musician Chladni), which led us to actual hands on activities about sound with Mrs Deacon and Mrs Young. It was great that I did not need to worry too much about translating what the salt and plate were about because they all had done something similar with a surdo and rice a couple terms before!
You can show the plates to your parents in this episode of Physics Girl: https://www.youtube.com/watch?v=wYoxOJDrZzw
No comments:
Post a Comment