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Questions and Answers
A sound wave traveling through air has a frequency of 500 Hz. If the air temperature increases, what will happen to the wavelength of the sound wave?
A sound wave traveling through air has a frequency of 500 Hz. If the air temperature increases, what will happen to the wavelength of the sound wave?
- The wavelength will decrease.
- The wavelength will remain the same.
- The frequency will increase.
- The wavelength will increase. (correct)
Sound waves travel faster in a vacuum than they do in air.
Sound waves travel faster in a vacuum than they do in air.
False (B)
Describe the relationship between the amplitude of a sound wave and the perceived loudness of the sound.
Describe the relationship between the amplitude of a sound wave and the perceived loudness of the sound.
The amplitude of a sound wave is directly related to the perceived loudness of the sound. A larger amplitude corresponds to a louder sound, while a smaller amplitude corresponds to a quieter sound.
The distance between two consecutive compressions in a longitudinal wave is called the _______.
The distance between two consecutive compressions in a longitudinal wave is called the _______.
Match the following wave characteristics with their corresponding properties:
Match the following wave characteristics with their corresponding properties:
Flashcards
Sound
Sound
Energy produced by vibrating objects, travels in waves.
Longitudinal Waves
Longitudinal Waves
Waves where particles move parallel to wave direction, featuring compressions and rarefactions.
Compression
Compression
Area of high pressure in a longitudinal wave where particles are closely packed together.
Frequency
Frequency
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Speed of Sound
Speed of Sound
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Study Notes
Sound
- Form of energy made when an object vibrates
- Longitudinal waves
Parts of a Longitudinal Wave
- Compression: Region of high pressure, particles are closely packed
- Rarefaction: Region of low pressure, particles are loosely packed together
- Wavelength: Distance between two compressions or rarefactions
- Amplitude: Maximum displacement moved by a particle
Characteristics of Sound Waves
- Frequency: How fast a wave vibrates, measured in Hertz (Hz), determines the pitch of the sound
- Amplitude: Height of the wave, tells the loudness of the sound
- Sound needs a medium to travel
- Sound travels faster in warmer temperatures
Speed of Sound
- 331 m/s at 0°C
- 343 m/s at 20°C
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