I hope everybody had a pleasant and safe Thanksgiving. We are now finished with the food chemistry unit and will start the sound unit tomorrow. The homework and DUE dates are as follows:
Tuesday, December 2: Sound travels at different speeds in different materials. Your homework is as follows:
- Find out the speed of sound in water, air, and steel in miles per hour and put that data into table form.
- I have heard that whales can hear the sounds from other whales hundreds of miles away. Has any research shown that to be true? What has research found?
Friday, December 5: 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? Do a brief internet search for towns that have done this. Your answer should be a 6-8 sentence paragraph.
-Mr. Pfiester
