Transcript Monday May 4 Save the World game

NOTES
Tuesday May 19
Sound!
Warm up:
What TYPE of wave is a sound wave?
(look in yesterday’s notes)
Ans: 0.91 sec
=
Due Today
– Nothing
Homework
– Book work (Ch 26)
• (due tomorrow)
NOTES
Vocab
• Pitch – same as FREQUENCY
• Infrasonic – sounds with f < 20 Hz
–Below what we can hear
• Ultrasonic – sounds with f > 20,000 Hz
–Above what we can hear
What can YOU hear?
Raise your hand. Put it down
when you stop hearing a tone.
http://plasticity.szynalski.com/tone-generator.htm
What affects your hearing?
Noise
Age
Ear Wax
Medications
Ear infections
Injury to ears or head
Ans: 12 m/s
NOTES
Work Time!
Book work
Chapter 26: Sections 26.1-26.4