We are now in our 2nd week on our sound unit. Last week was pretty chaotic with testing and events disrupting planned activities. As such the homework that WAS due on Friday, December 5 is due on Tuesday, December 9. So the homework description and due dates are as follows:
Tuesday, December, 9: Some towns have installed sound speakers outside to purposely annoy teenagers who gather together in public areas. The sounds are usually the mosquito frequencies we discussed or classical music. Do you think this should be allowed? Why or why not? Do teenagers have the right to gather in public places in large groups? Is it legal to target specific groups as the sound speakers do? Do a brief internet search for towns that have done this. Your answer should be a 6-8 sentence paragraph.
Friday, December 12:
- What does "infrasound" mean? What range of hertz covers infrasound (remember, humans hear hertz from about 20-20,000)? What animals use infrasound to communicate? You can find answers to these questions at http://en.wikipedia.org/wiki/Infrasound.
- What does "ultrasound" mean? What range of hertz covers ultrasound (remember, humans hear hertz from about 20-20,000)? What animals use ultrasound to communicate? You can find answers to these questions at http://en.wikipedia.org/wiki/Ultrasound.
