1. Frequency & Wavelength
Unit 5
Chapter 20 … Section 2

2. Frequency & Wavelength
Warm-Up
Frequency & Wavelength
Textbook p. 594: #1, #2, & #3 (Passage-1) and #1 & #2 (Passage-2)

3. Frequency & Wavelength
definition (review): the distance from any point on a wave to an identical point on the next wave
use the Greek symbol lambda

4. Frequency & Wavelength
definition (review): the number of waves passing a given point in an amount of time (per 1 second)
measured by Hertz (Hz) units
use an “f” symbol

5. Wave Speed (v) velocity (speed) = wavelength x frequency
Frequency & Wavelength
(v) velocity (speed) = wavelength x frequency
Remember the Boyles & Charles Laws?
Indirect relationships and Direct relationships

6. Frequency & Wavelength
Practice
Frequency & Wavelength
Guided and Student practice:
Textbook p. 582: “Math Focus”
All: Determine the wave speed of a wave that has a wavelength of 5m and a frequency of 4Hz.
Students: work on Q’s #1 & #2

7. Frequency & Wavelength
Exit Ticket
Textbook p. 583:
answer these four questions (10 pts)
#2 (1 pt.)
#4 (3 pts)
#5 (3 pts)
#6 (3 pts)