Unit Plan
CK-12 Foundation

Ck 12: Transmission of Sound

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students explore how mechanical waves are transmitted., and find out what is meant by interference and intensity of sound waves.
Handout
Georgia State University

Georgia State University: Hyper Physics: Refraction of Sound

For Students 9th - 10th
A discussion of refraction and its application to sound waves. Using analogies, graphics and real-life applications, this page and those that accompany it explain why and when sound waves bend.
Activity
Science Buddies

Science Buddies: Extreme Sounds: Lessons in a Noisy World

For Students 9th - 10th
Just how loud does a sound have to be for us to hear it? And how loud is too loud for our ears? Learn to measure levels of sound in this project, and discover the amazing auditory range your ears can detect in the noisy world around you.
Activity
Science Buddies

Science Buddies: Frequency Dependent Sound Absorption

For Students 9th - 10th
Want to start a garage band, but Mom or Dad won't let you because it will make too much noise? This is a good project for someone who is interested in acoustics and likes to build things. The objective of this project is to determine if...
Article
Khan Academy

Khan Academy: Test Prep: Mcat: Physical Processes: Sound Is a Longitudinal Wave

For Students 9th - 10th
Discusses the physics of how sound travels. Includes a video of a volcanic eruption that demonstrates the speed of sound waves.
Unit Plan
Physics Classroom

The Physics Classroom: Sound Is a Mechanical Wave

For Students 9th - 10th
This physics tutorial invites users to discover that sound is a mechanical wave. Be sure click on the animation for further study.
eBook
Physics Classroom

The Physics Classroom: Sound Waves and Music: Open End Air Columns

For Students 9th - 10th
Through illustrated diagrams and interactive practice examples, students explore the physics of sound in open-end air column musical instruments.
eBook
Physics Classroom

The Physics Classroom: Sound Waves and Music: Standing Wave Patterns

For Students 9th - 10th
Elaborate on the essential characteristics and the causes of standing wave patterns and relate these patterns to the vibrations of musical instruments.
Unit Plan
CK-12 Foundation

Ck 12: Resonance and Sound Waves

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students investigate the conditions for resonance, and then solve problems with strings and pipes using the condition for resonance.
eBook
Physics Classroom

The Physics Classroom: Waves: Waves and Wavelike Motion

For Students 9th - 10th
Here is an introduction to the concept of waves and wavelike motion people experience anywhere and everywhere.
Unit Plan
Physics Classroom

The Physics Classroom: Boundary Behavior

For Students 9th - 10th
Educational tutorial features a physics tutorial on the behavior of sound waves specifically focusing upon boundary behavior. Be sure to view the attached animations for further understanding.
eBook
Physics Classroom

The Physics Classroom: Sound Waves and Music: Guitar Strings

For Students 9th - 10th
A guitar string has a number of frequencies at which it will naturally vibrate. These natural frequencies are known as the harmonics of the guitar string. Students work through several example problems.
Activity
Science Buddies

Science Buddies: How Does Color Affect Heating by Absorption of Light?

For Students 9th - 10th
Light is an example of an electromagnetic wave. Electromagnetic waves can travel through the vacuum of interstellar space. They do not depend on an external medium-unlike a mechanical wave such as a sound wave which must travel through...
Handout
Other

Byju's: Physics: Reflection of Waves

For Students 9th - 10th
Explains what happens to a wave when it hits a fixed end or a free end.
Unit Plan
Physics Classroom

The Physics Classroom: Standing Wave Patterns

For Students 9th - 10th
Educational tutorial highlights standing wave patterns. Discover more about them and be sure to click on the animations for additional study.
Unit Plan
Physics Classroom

The Physics Classroom: Resonance and Standing Waves

For Students 9th - 10th
Educational tutorial features a physics classroom tutorial on natural frequency.
Website
Other

Mostly Music: Music Physics

For Students 9th - 10th
A discussion of a variety of physics topics related to music and sound. Topics include vibrations, sound waves, frequency and pitch, resonance and overtones.
Unit Plan
Physics Classroom

The Physics Classroom: Forced Vibration

For Students 9th - 10th
This physics tutorial explores forced vibration. Includes links to natural frequency, standing wave patterns and fundamental frequency and harmonics.
Activity
Science Buddies

Science Buddies: Guitar Fundamentals: Wavelength, Frequency, & Speed

For Students 9th - 10th
This is a rockin' project for guitarists with an interest in the physics behind music. If you have ever wondered why the pitch of the note changes when you fret the string, this project will help you understand by applying basic...
Article
University of New South Wales (Australia)

University of New South Wales: Introduction to Acoustics of Brass Instruments

For Students 9th - 10th
Discover the acoustical properties of brass instruments from this well researched site provided by the University of New South Wales. Everything from lip control to bell shape is discussed as it applies to frequencies and harmonics.
Article
Famous Scientists

Famous Scientists: Ernst Mach

For Students 9th - 10th
Read about the life and work of this Austrian physicist and philosopher, known for his contributions to physics with the Mach number and the study of shock waves.

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