1. Prof. Marlon Flores Sacedon
Energy in Wave Motion
Prof. Marlon Flores Sacedon
Department of Mathematics and Physics
College of Arts and Sciences
Visayas State University, Visca
Baybay City, Leyte, Phiippines

2. Speed of a Transverse Wave
Every wave motion has energy associated with it.
Energy we receive from sunlight and the destructive effects of ocean surf and earthquakes bear this out.
To produce any of the wave motions, we have to apply a force to a portion of the wave medium; the point where the force is applied moves, so we do work on the system.

3. Speed of a Transverse Wave
motion
Wave
motion a

4. Speed of a Transverse Wave
motion a
The wave propagates, each portion of the medium exerts a force and does work on the adjoining portion. In this way a wave can transport energy from one region of space to another.

5. Speed of a Transverse Wave
motion
The magnitude of the horizontal component 𝐹 𝑥 equals the tension 𝐹 in the undisturbed string. Note that 𝐹 𝑥 𝐹 is equal to the negative of the slope of the string at a, and this slope is also given by 𝜕𝑦 𝜕𝑥 . a

6. Speed of a Transverse Wave
motion a

7. Speed of a Transverse Wave
motion a

8. PROBLEMS SET

9. PROBLEMS SET

10. PROBLEMS SET

11. PROBLEMS SET

12. PROBLEMS SET

13. Answers to odd numbers

14. eNd