# Unit 11 Packet

Regular Physics
To optimize your use of this resource, click on the links for individual questions in your unit packet. The link will bring you to online help related to that question. Carefully read the resource material and procede to answer the questions in your unit packet. Answers and complete solutions to the Supplementary Challenges section can also be reviewed.

Objective 1

Sound

Objective 2

Guitar Strings Simulation

Resonance

Objective 3

Resonance and Standing Waves

Resonance Tubes Lab

Objective 4

I Can't Hear You Lab

### Sound (pp. 1-2)

#1 Nature of a Sound Wave

#2 Pitch and Frequency

#3 - #5 The Doppler Effect

#7 Wavelength of a Pressure Wave

#8 Compressions and Rarefactions

#9 Factors Effecting the Speed of Sound Waves

#10 - #12 Speed, Distance, Time Relationship

#13 Frequency

The Wave Equation

#14 Intensity of Sound and the Decibel Scale

### Guitar Strings (pp. 3-6)

Standing Waves

Standing Wave Patterns

 1st Harmonic 2nd Harmonic 3rd Harmonic

Frequency and Period

Fundamental Frequency and Harmonics

Nodes and Anti-nodes

### Resonance (pp. 7-8)

#1 Resonance

#2 Resonance and Standing Wave Patterns

Wavelength Relationships for Harmonics

Frequency Relationships for Harmonics

#4 Resonance and Standing Wave Patterns

 1st Harmonic 2nd Harmonic 3rd Harmonic

#5 Resonance and Standing Wave Patterns

The Wave Equation

### Resonance and Standing Waves (pp. 9-10)

#1 - #4 Mathematics of Guitar String Instruments

 1st Harmonic 2nd Harmonic 3rd Harmonic

# 5 - #8 Mathematics of Open-End Air Columns

#9 - #12 Mathematics of Closed-End Air Columns

### Resonance Tubes Lab (pp. 11-12)

Standing Wave Patterns for Closed-End Air Columns

Mathematics of Closed-End Air Columns

The Wave Equation

Speed of a Sound Wave

### I Can't Hear You Lab (pp. 13-14)

Interference

Two Point Source Interference Patterns

### Supplementary Challenges

See answers and accompanying solutions to all odd-numbered problems.

Additional resources for physics students are available through links on the GBS Physics Home Page. Such resources include the Multimedia Physics Studios , a collection of animations and movies which illustrate key physics concepts and the Shockwave Physics Studios, a collection of interactive Shockwave exercises.