FORCES II HONORS PHYSICS

SOUND II
AP PHYSICS 'C'

TEXTBOOK: Chapter 15; Section 15.7 to 15.12; pages 471 - 485.

OBJECTIVES:

State the four criteria sound must have to be considered a wave phenomenon; describe how sound meets these criteria.
Describe the conditions necessary for beats to be produced; calculate the beat frequency of two sound sources.
Describe what is meant by natural frequency.
Describe the conditions for resonance and explain what occurs in resonance.
Relate a fundamental frequency to its overtones in terms of frequency.
Given a drawing of a standing wave, specify the number of wavelengths and which overtone is represented.
Given the length of a tube or stretched string and for a tube told whether it is open or closed; and told the particular harmonic or overtone being sounded, to determine its frequency.
Describe what is meant by the quality of a musical instrument.

ACTIVITIES:

TYPE	DESCRIPTION	DATE
DEMONSTRATION	Interference and Diffraction with Speakers
EXPERIMENT	Interference of Sound Waves
EXPERIMENT	Standing Waves on a Vibrating String
DEMONSTRATION	Natural Frequency and Resonance
MULTI-MEDIA	Tacoma Narrows Bridge
HOMEWORK	Read Section 15.7 (pages 471 - 472) and Section 15.11 (pages 479 - 480); do problems page 490; # 31, 33, 35, 36, 55.
EXPERIMENT	Speed of Sound in Aluminum
EXPERIMENT	Resonance of Air Columns
MULTI-MEDIA	Resonance and Breaking Glass
HOMEWORK	Read Section 15.8 to 15.9; pages 472 - 477; do problems page 491; # 37, 39, 40, 42, 45.
IN-CLASS ACTIVITY	Worksheet: Name That Frequency I
IN-CLASS ACTIVITY	Worksheet: Name That Frequency II
HOMEWORK	Worksheet: Name That Frequency III
HOMEWORK	Read Section 15.10 (pages 472-479) and Section 15.12 (pages 481 - 482) and complete Conceptual Worksheet - Sound II
EXPERIMENT	Tones, Vowels, Phones
TEST	Sound II