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Questions and Answers
What type of wave is sound in physics?
What type of wave is sound in physics?
- Longitudinal wave (correct)
- Electromagnetic wave
- Gravitational wave
- Transverse wave
What is the unit of frequency?
What is the unit of frequency?
- Meter per second
- Newton per second
- Joule per second
- Hertz (correct)
What is the characteristic of sound waves that refers to the number of complete waves that pass through a point per unit time?
What is the characteristic of sound waves that refers to the number of complete waves that pass through a point per unit time?
- Frequency (correct)
- Amplitude
- Periodic time
- Wavelength
What type of wave propagates perpendicular to the direction of vibration?
What type of wave propagates perpendicular to the direction of vibration?
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What is the condition necessary for mechanical waves to propagate?
What is the condition necessary for mechanical waves to propagate?
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Study Notes
Definition of Sound in Physics
- Sound is defined as longitudinal mechanical waves.
- Mechanical waves require a material medium to propagate.
- Longitudinal waves vibrate in the same direction as their propagation.
Characteristics of Sound Waves
- Frequency is the number of complete waves that pass through a point per unit time.
- Frequency is equivalent to the reciprocal of periodic time.
- Frequency is measured in hertz (Hz), where 1 Hz = 1/second.
- Wavelength is a characteristic of sound waves.
- Amplitude is a characteristic of sound waves.
- Periodic time is a characteristic of sound waves.
Types of Waves
- Transverse waves propagate perpendicular to the direction of vibration.
- Examples of transverse waves include water waves.
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