1. Characteristics of Waves

2. Period
Frequency
Frequency-period
Wave Speed

3. Period
The time required for one full wavelength of a wave to pass a certain point. Represented as T and expressed in seconds.

4. Frequency
The number of wavelengths that pass a point in a given time interval. Represented as f and expressed in Hertz (Hz)

5. Frequency to period
The more vibrations in a second, the less time each takes therefore:

6. Wave Speed
The speed of a wave is equal to wavelength divided by period or to frequency multiplied by wavelength

7. SPEED OF LIGHT m/s
SPEED OF SOUND m/s

8. A tuning fork has a frequency of 280 Hz, and the wavelength of sound produced is 1.5 meters. What is the velocity of the wave?
𝑣=𝑓𝜆 𝑣=280 𝐻𝑧 𝑥 1.5 𝑚 420 m/s

9. 2.0 m 𝑣=𝑓𝜆 (5.0 m/s) =(2.5 𝐻𝑧) 𝜆 𝜆 = 5.0𝑚/𝑠 2.5𝐻𝑧
A wave is moving toward shore with a velocity of 5.0 m/s. If its frequency is 2.5 Hz, what is its wavelength?
𝑣=𝑓𝜆
(5.0 m/s) =(2.5 𝐻𝑧) 𝜆
𝜆 = 5.0𝑚/𝑠 2.5𝐻𝑧
2.0 m