Other Resources

The Laboratory

The Review Session

The Quiz Room

The Physics Classroom

WebAssign

Minds On Physics Internet Modules

Audio Help

Unit 4 Schedule
2013-2014

The following schedule information was prepared at the beginning of the unit.  It is not fixed in stone. It's role is to serve as an organizational tool for students to find both required and helpful resources relevant to daily activities. The schedule is seldom updated as the unit progresses; if we fall behind, then topics or depth of topics will be reduced in order to keep the overall pace required to maximize coverage of the entire curriculum.

 Day "0.5": Friday, October 11 Lesson Plan: Any Unit 3 MOP Codes? Discuss Interference; demonstrations, web animations, pp. 9-10 of Packet Begin unit on Sound: Discuss sound as a mechanical, longitudinal, pressure wave created by a vibrating object with a frequency between 25 Hz and 20000 Hz Finish Lab WM6 - Vibrating Spring Lab Homework: Read/study Lesson 1 of Sound and Music Chapter (TPC) Complete Lab W6  Prepare for Quest Announcements: We will be focusing on the physics of sound waves and music through the month of October. Tricks learned in Unit 3 will be applied in Unit 4. Online Help:

 Day --: Monday, October 14 Lesson Plan: Collect MOP Codes (last chance) Collect Lab Notebooks (Labs W4, W5, W6) Discuss sound as a mechanical, longitudinal, pressure wave created by a vibrating object with a frequency between 25 Hz and 20000 Hz Review the Nature of Sound (p. 1) Unit 3 Quest Homework: Read Lesson 1 of Sound Chapter (TPC) Do MOP: assignment SM1 Complete Lab W6 (to be collected) Announcements: Read Lesson 1 of Sound Chapter (TPC); do page 1 of Unit 4 Packet Complete Lab W6 (to be collected) Online Help:

 Day 2: Tuesday, October 15 Lesson Plan: Check p. 1 of Packet Discuss sound production and propagation - relation between dimensions of instrument and wavelength and frequency; demos Sound properties: frequency, relation to pitch, human range of hearing; speed, variables effecting speed; intensity and relation to distance; p. 2 Get quantitative about the speed of sound: v=d/t and v =f•lambda and vair = 331 + 0.60*T; do p. 3 (selected Qs) Homework: Read Lesson 2 of Sound Chapter (TPC) Do MOP: assignments SM1-SM2 Announcements: Stay on top of your reading on the physics of sound waves and music. Stay on top of your MOPs. Online Help:

 Day 3: Wednesday, October 16 Lesson Plan: Late Arrival - Shortened Periods (35 minutes) Introduction to deciBel system using CRS passageDiscuss deciBel system using page 5 of Packet, #1-3 Homework: Read Lesson 2 of Sound Chapter (TPC) Do MOP: assignments SM1-SM3 Announcements: Unit 4 MOP assignments that are assigned in quarter 1 will be collected near the end of quarter 1 (even though the unit is not over). Online Help:

 Day 4: Thursday, October 17 Lesson Plan: Review deciBel System; laser disc segment; demo with deciBel meter; discuss inverse square law- relate I to R and I to dB; complete p. 6 of packet Do some sample calculations of I and dB using equation. Introduce the Doppler Effect; laser disc segments Homework: Do MOP: assignments SM1-SM4 Do WebAssign: deciBel System Read Lesson 4 (and the Doppler effect of Lesson 3) of Sound Chapter (TPC) Announcements: Unit 4 MOP assignments that are assigned in quarter 1 will be collected near the end of quarter 1 (even though the unit is not over). There will be a Unit 4 Quest at the end of teh quarter. Online Help:

 Day 5: Friday, October 18 Lesson Plan: Review Doppler effect; do p. 4 There will be a lecture/demonstration involving three concepts: natural frequency, forced vibration and resonance. Demonstrations include: Natural frequency - tuning fork, pendulum bobForced vibration and amplification: tuning fork on whiteboard, cabinet glass, table, sound box, and ... mouthForced vibration: inverted pendulum, dual tuning forksResonance: water goblet, pop bottle, slip stick friction on singing Al rod, plastic strawResonance and Standing Waves: Chaldni patterns, lab pole, singing rodsPalm pipe music (maybe)All time favorite: psychic resonance Guidance through selected Qs on pp. 7-8 of Packet Homework: Do MOP: assignments SM1-SM5, SM6(?), SM7(?)Read/study Lesson 4 of Sound Chapter (TPC) Announcements: Unit 4 MOP assignments that are assigned in quarter 1 will be collected near the end of quarter 1 (even though the unit is not over). There will be a Unit 4 Quest at the end of teh quarter. Online Help:

 Day 6: Monday, October 21 Lesson Plan: Mathematics of Guitar Strings: speed on strings equation; review standing wave patterns;  pp. 9-10, Q#1-4 Lab Test (due at end of the period) Homework: Do WebAssign: Waves on Strings Do MOP: assignments SM1-SM7 Announcements: Unit 4 MOP assignments that are assigned in quarter 1 will be collected near the end of quarter 1 (even though the unit is not over). There will be a Unit 4 Quest at the end of teh quarter. Online Help: None.

 Day 7: Tuesday, October 22 Lesson Plan: Review resonance in strings (p. 9); discuss problem-solving schematic; do selected Qs (e.g., #5, 6, 8 on p. 10) Discuss closed-end air columns; demonstrations; develop mathematics on pp. 13-14, Q#1-6 Do Lab S4 - Closed End air column lab (collect data, discuss end-effect corrections, pool speed values) Homework: Do MOP: assignments SM1 - SM7 and SM10 - SM11 Read/study Lesson 5 of Sound Chapter (TPC) Announcements: The links below offer some excellent help understanding resonance and the physics of musical instruments. Online Help:

 Day 8: Wednesday, October 23 Lesson Plan: Analysis of String Instruments: pp. 15-16 Discuss Closed End Air Columns; review problem-solving schematic; discuss v equation for speed of sound in air; complete pp. 13-14 Complete Lab S4 Homework: Do MOP: assignments SM1 - SM7 and SM10 - SM11 Do WebAssign: Physics of String Instruments Read/study Lesson 5 of Sound Chapter (TPC) Announcements: Work on your MOP to get the concepts;  the conceptual understanding will be the basis for your problem-solving.\ MOPs will be collected this Friday. A Quest will be given this Friday. Online Help:

 Day 9: Thursday,  October 24 Lesson Plan: Any MOP Codes? Review Closed End Air Columns and problem-solving schematic; discuss v equation for speed of sound in air; do a p. 14 and/or a p. 17 problem Discuss Open-end air columns; do diagramming and Q#1-5 on p. 11 of packet Do Lab S5 Homework: MOP Codes will be collected (SM1-7 and SM10-11) Read/study Lesson 5 of Sound Chapter (TPC) There will be a Unit 4 Quest tomorrow (~50 points) Announcements: MOPs will be collected tomorrow. A Quest will be given tomorrow. Online Help:

 Day 10: Friday, October 25 Lesson Plan: Hand in MOP Codes Review Open-end air columns and problem-solving schematic; do selected Qs on p. 12  and  pp. 17+ Unit 4 Quest (~50 points) Homework: Do MOP: assignment SM8-SM9 Do WebAssign: Physics of Air Columns #1 Announcements: Course notebooks will be handed in on Tuesday, February 5. There is a Quest on Tuesday, February 5.  Visit The Quiz Room. Online Help:

 Day 11: Monday, October 28 Lesson Plan: Return MOP Code sheet; any MOP Codes:  SM8-SM9? Air Column Resonance: do selected problems from pp. 16+ Lab S8 - Musical Intervals Lab Post-lab S8; investigate the 1.0595n rule of musical notes Homework: Do WebAssign: Physics of Air Columns #2 Read/study Lesson 3b and 5 of Sound Chapter (TPC) Announcements: Tomorrow is the last day of the unit. We will start Unit 5 on Wednesday. Online Help:

 Day 12: Tuesday, October 29 Lesson Plan: Any MOP Codes - SM8, SM9? Lab S10 - Timbre Lab Discuss beats; demonstration; online animation Do Lab S11: Who Can Hear Monte Tone Homework: Prep Lab Notebook for Submission - Labs S4, S5, S8 and S10 Read/study Lesson 3 of Light and Color Chapter (TPC) Announcements: We will start Unit 5 tomorrow. Online Help: