How do you measure amplitude and wavelength from a wave diagram, and how can you calculate frequency from these measurements?
Understand the Problem
The question is asking about wave measurements, specifically how to measure amplitude and wavelength from a provided wave diagram. It suggests illustrating and calculating the frequency based on these measurements.
Answer
Amplitude is peak height; wavelength is peak-to-peak distance; frequency is cycles per second.
The amplitude is measured from the rest position to a peak. Wavelength is the distance between two peaks. Frequency can be determined by counting cycles within a second or using the formula Frequency = Wave Speed / Wavelength.
Answer for screen readers
The amplitude is measured from the rest position to a peak. Wavelength is the distance between two peaks. Frequency can be determined by counting cycles within a second or using the formula Frequency = Wave Speed / Wavelength.
More Information
Amplitude is typically measured vertically, whereas wavelength is a horizontal measurement. To find frequency, knowing wave speed and wavelength allows use of formulas.
Tips
A common mistake is confusing amplitude with wavelength. Ensure measurements are consistent, using the same units for all calculations.
Sources
- Frequency, wavelength, amplitude and wave speed - BBC - bbc.co.uk
- The Anatomy of a Wave - The Physics Classroom - physicsclassroom.com
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