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Questions and Answers
What is the time period of a wave with a frequency of 5 Hz?
What is the time period of a wave with a frequency of 5 Hz?
- 5 seconds
- 2 seconds
- 0.5 seconds (correct)
- 0.2 seconds
How is the speed of sound affected when it moves from one medium to another?
How is the speed of sound affected when it moves from one medium to another?
- Speed decreases, resulting in a change in wavelength
- Frequency changes, while speed remains constant
- Speed increases, and frequency changes
- Speed changes and so does the wavelength, but frequency remains the same (correct)
If a wave has a frequency of 400 Hz, what is its time period?
If a wave has a frequency of 400 Hz, what is its time period?
- 0.0025 seconds (correct)
- 0.025 seconds
- 0.25 seconds
- 2.5 seconds
What is the wave speed if the frequency is 50 Hz and the wavelength is 6 m?
What is the wave speed if the frequency is 50 Hz and the wavelength is 6 m?
Determine the wave speed for a wave with a frequency of 0.2 Hz and a wavelength of 25 m.
Determine the wave speed for a wave with a frequency of 0.2 Hz and a wavelength of 25 m.
What characterizes sound as a wave?
What characterizes sound as a wave?
Flashcards
Time Period of a Wave
Time Period of a Wave
The time it takes for one complete wave cycle to pass a given point.
Frequency of a Wave
Frequency of a Wave
The number of complete wave cycles that pass a given point in one second.
Wavelength
Wavelength
The distance between two consecutive corresponding points on a wave.
Wave Velocity
Wave Velocity
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Mechanical Wave
Mechanical Wave
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Electromagnetic Wave
Electromagnetic Wave
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Study Notes
Wave Energy Transfer
- Waves transfer energy, but not matter.
- Both mechanical and electromagnetic waves transfer energy.
Wave Period Calculation
- Wave period (T) can be calculated using the equation: T = 1/f, (where f is frequency)
- The time period of a wave with a frequency of 5 Hz is 0.2 seconds.
- The time period of a wave with a frequency of 400 Hz is 0.0025 seconds.
Wave Velocity Calculation
- Wave velocity (v) can be calculated using the equation: v = fλ, (where f is frequency and λ is wavelength)
- Wave speed for a frequency of 50 Hz and wavelength of 6 meters is 300 meters/second.
- Wave speed for a frequency of 0.2 Hz and a wavelength of 25 meters is 5 meters/second.
Sound Waves
- Sound is a mechanical longitudinal wave.
- Sound is passed on by collisions between particles.
- Sound wave speed depends on the density of the particles.
- When sound moves between mediums, a change in speed causes a change in wavelength, but frequency remains constant.
- Wavelength is proportional to wave velocity when the frequency is constant.
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