1. Changes in Waves Essential Question:
How do changes in one part of a wave affect other parts of a wave? (S8P4a,f)
Instructional Approach(s): The teacher should introduce the essential question and the standard that aligns to the essential question

2. Use the PowerPoint to fill in the Changes in Wave Properties Notes
Instructional Approach(s): The teacher should give each student the Waves Notes sheet to use to record important information throughout the lesson

3. Review: Parts of a Transverse Wave
The amplitude is the peak (greatest) value (either positive or negative) of a wave. The distance from the undisturbed level to the trough or crest.
Instructional Approach(s): The teacher should present the information on the slide while the students record the important information on their notes

4. Larger amplitude = More Energy
Less Energy Transferred
More Energy Transferred
Instructional Approach(s): The teacher should present the information on the slide while the students record the important information on their notes

5. The wavelength is the distance…
Review: Parts of a Wave
The wavelength is the distance…
between the crests or troughs of two consecutive transverse waves
Instructional Approach(s): The teacher should present the information on the slide as a review for parts waves.
from compression to compression or rarefaction to rarefaction in a compressional wave

6. Frequency is the number of wavelengths that pass a point in a given amount of time.
Low Frequency
Instructional Approach(s): The teacher should present the information on the slide while the students record the important information on their notes
High Frequency

7. Wavelength and Frequency are inversely related.
If a wave is traveling at the same speed, as the frequency of a wave increases, its wavelength decreases.
The same is true in reverse. As the wavelength of a wave increases, its frequency decreases.

8. Low Frequency
High Frequency
Long Wavelength
Short Wavelength

9. Wavelength, Frequency, and Energy
Shorter Wavelength = Higher Frequency = More Energy
Longer Wavelength = Lower Frequency = Less Energy
Instructional Approach(s): The teacher should present the information on the slide while the students record the important information on their notes

10. Summarizing Strategy: Complete the Changes in Properties of Waves: Sorting Activity
Instructional Approach(s): Each student should complete the summarizer. The teacher should use the summarizer to determine the level of student mastery and if differentiation is needed.