UNIT+7+--+WAVES+AND+SOUND

Scientists study and observe many phenomena. In doing so, they build models as ways of explaining their findings. Some of these models are physical (ex. solar system) while some are more abstract or mathematical in nature. As you have seen, Newtonian physics explains our world through the application of mathematical models whereas Darwin's model of evolution is mostly a story with no mathematics. The model of the atom is abstract in nature. Regardless, any model is tested over and over to check for its validity in explaining phenomena.

Humans have, for centuries, been fascinated with sound. What kind of model can we develop that helps explain the properties of sound? The behaviour of waves provides a platform for understanding how sounds interact. As you learn about the behaviour of waves, take note of the behaviour of sound and see how sound can be thought of as being a wave.

Page 207 #1-4 Page 208 #1,2,3,5 || [|Questions on page 207-208.pdf] || Page 211 #1, page 211 #1-8 Read pp. 239-241 Page 241 #1-3 Read page 243 Page 243 #1-4, page 246 #1,2,5-7 Page 257 #1-4 || [|Questions on page 241-143.pdf] [|Questions on page 260 to 264.pdf] [|Questions on page 260.pdf] [|Questions on page 266 and 267.pdf] [|Questions on page 286.pdf] [|Questions on pages 225-230.pdf] [|Questions on pages 232 to 234.pdf] || Page 260 #1-3; Page 260 #4 (blue) || [|Questions on pages 243 and 246.pdf] [|Questions on pages 253, 254, 257, and 258.pdf] || From here you can find the other ripple tank videos that were shown in class. || Read pp. 264-266 p.266 #1-3; p. 267 #5-7 ||  || [|Beats 2] || These links allow you to study the behaviour of beats. || p. 232 #1-3, #1-2 p. 263 #1-3 ||  || and "two point source interference", you will also get video of the real thing. || Read pp. 284-286 p. 229 #1-3, p. 230 #1-3, p. 286 #1,3 (blue) ||  || length of the string, it is destroyed. ||
 * **Assignments / Links** || **Solutions (from a solution manual to the text)** ||
 * Page 198 #2-7 || [|Questions on page 198 and page 201.pdf] ||
 * Page 198 #1, 2 and 4
 * Read pp. 209-211
 * Read pp. 214-218; 258-260
 * [|Refraction of water waves] || This is a link to youtube video showing refraction of water waves in a ripple tank.
 * Read pp. 239-241 p.241 #1,2
 * [|Beats]
 * Read pp. 231-232 and pp. 260-263
 * [|Two point source ripple tank simulation] || This is a simulation of the 2pt source interference pattern. If you Google "ripple tank"
 * Read pp. 226-230 (skip activity)
 * [|Standing waves video] || See how a standing wave is created and, by slightly changing the frequency or the
 * Read pp. 223-225 p. 225 #1-2 ||  ||