5.93. References http://www.ck12.org
- Zachary Wilson. Schematic of a warm water heating system. CC BY-NC 3.0
- Zachary Wilson. Warm air heating system. CC BY-NC 3.0
- John Loo. Thermostats help regulate temperature. CC BY 2.0
- Christopher Auyeung. Diagram illustrating how a refrigerator works. CC BY-NC 3.0
- Christopher Auyeung. Diagram illustrating how an external combustion engine works. CC BY-NC 3.0
- Christopher Auyeung. Diagram illustrating the operation of an internal combustion engine. CC BY-NC 3.0
- Zachary Wilson. Diagram illustrating transverse, longitudinal, and surface waves. CC BY-NC 3.0
- Christopher Auyeung. Diagram of a longitudinal wave. CC BY-NC 3.0
- Zachary Wilson. Crests and troughs of a transverse wave. CC BY-NC 3.0
- Christopher Auyeung. Secondary waves are transverse waves. CC BY-NC 3.0
- Christopher Auyeung. Diagram of a longitudinal wave. CC BY-NC 3.0
- Christopher Auyeung. Primary waves are longitudinal waves. CC BY-NC 3.0
- User:Vargklo/Wikipedia, modified by CK-12 Foundation. Particle in a traveling water wave. Public Domain
- Top: U.S. Geological Survey; Bottom: Flickr: Axion23. Wave breaking on shore. Top: Public Domain;
Bottom: CC BY 2.0 - Christopher Auyeung. Transverse and longitudinal waves. CC BY-NC 3.0
- Zachary Wilson. Amplitude of a transverse wave. CC BY-NC 3.0
- CK-12 Foundation. Longitudinal waves with varying amplitudes. CC BY-NC 3.0
- Zachary Wilson. Wavelength of a transverse wave. CC BY-NC 3.0
- Zachary Wilson. Wavelength of a longitudinal wave. CC BY-NC 3.0
- Christopher Auyeung. Waves with short and long wavelengths. CC BY-NC 3.0
- Christopher Auyeung. High frequency and low frequency transverse waves. CC BY-NC 3.0
- Courtesy of NASA. Relationship between frequency and energy. Public Domain
- Zachary Wilson. Diagram illustrating reflection. CC BY-NC 3.0
- Zachary Wilson. Diagram illustrating refraction. CC BY-NC 3.0
- Student: Flickr:MaxTorrt; Radio: Flickr:Kansir. Diagram illustrating diffraction. CC BY 2.0
- Zachary Wilson. Diagram illustrating diffraction through a slit. CC BY-NC 3.0
- Christopher Auyeung. Diagram illustrating constructive interference. CC BY-NC 3.0
- Christopher Auyeung. Diagram illustrating destructive interference. CC BY-NC 3.0
- Guitar string photo by Flickr:jar(); illustration by Christopher Auyeung (CK-12 Foundation). Vibrating guitar
string. CC BY 2.0 - S.L. Ratigan. Drums creating sound. CC BY 2.0
- Christopher Auyeung. Relationship between decibel level and intensity. CC BY-NC 3.0
- Christopher Auyeung. Sound wave intensity in relation to distance from source. CC BY-NC 3.0
- Piccolo: U.S. Navy photo by Chief Mass Communication Specialist David Rush; Tuba: Bob Fishbeck. The
frequency of a sound wave determines the pitch that we hear.. Public Domain
71.. Bats can detect sounds with very high frequencies. Public Domain - Zachary Wilson. Diagram illustrating how the Doppler effect works.. CC BY-NC 3.0
- Original by Chittka L, Brockmann A; modified by CK-12 Foundation. Diagram of the ear. CC BY 2.5
- S. Heller and K. Oshima. Hair cell under a microscope. Public Domain
- Christopher Auyeung. Loudness scale. CC BY-NC 3.0
- Sign: Rae Allen; Construction: Photo by John Messina for the Environmental Protection Agency; Lawn-
mower: Elliot Brown; Snowmobile: Chris Costes; composite by CK-12. Sources of loud noises. Sign,
Lawnmower, Snowmobile: CC BY 2.0; Construction: Public Domain - Earplugs: Kevin Dooley; Diagram by Christopher Auyeung (CK-12 Foundation). Hearing protectors help
protect hearing. Earplugs: CC BY 2.0; Diagram: CC BY-NC 3.0 - Xylophone: Oliver Hallman; Clarinet: Flickr:Infrogmation; Violin: Danny Hope. The three categories of
musical instruments. CC BY 2.0 - Christopher Auyeung, using bat image by User:Rugby471/Wikimedia Commons. Bats use echolocation to
identify the location of objects. CC BY-NC 3.0 (bat image available under public domain) - Zachary Wilson. Sonar is used to locate underwater objects. CC BY-NC 3.0