1. Warm-Up 11/12/13 Complete the Practice/Pre Test
Grab a copy off of the front desk.
Put answers on a lined sheet of paper.
When done, hold on to it!

2. The Nature of Waves
Section 17.1
11/12/13

3. What Are Waves?
Wave= a repeating disturbance or movement that transfers ENERGY through matter or space
Matter is NOT transported

4. Repeating
Matter not transported

5. Making Waves Created by a vibrating source
Up and down or
Back and forth
Waves stop when there isn’t more energy being added

7. Mechanical Waves Mechanical Waves: require a medium to travel through
Medium=solid, liquid, gas, combination

8. Types of Mechanical Waves
Transverse
Matter moves back and forth at right angles to the direction that the wave travels
Transverse
Matter moves back and forth at right angles to the direction that the wave travels
Compressional
Matter moves back and forth along the same direction that the wave travels

9. Transverse

10. Compressional

11. Non-Mechanical Waves Do not require a medium
Examples: light and radio waves
(Will cover in more detail later in the unit)

12. Examples of Mechanical Waves

13. Directions for Videos/Pictures:
Take notes on the following:
The situation/scenario sketch
The medium
Type of mechanical wave

14. 1.) Video

15. 2.) Picture

16. 3.) Picture

17. Your Job
Complete the vocabulary cross word. If you get stuck, the words are from 17.1 in the book! Not all of them are from our notes.