1. Think, Pair, Share Activity
Think about different types of Waves you have seen in your life time.
Pair up with your partner.
Partner on the right (of me) Share your experiences with different types of waves with your partner. (30 seconds)
Partner on the left Share your experiences with differing waves with your partner. (30 seconds)

2. Physical Science Waves
Water Waves
Radio Waves
Human Waves!!?

3. Waves transmit (transfer) energy
1. What do waves do?
Waves transmit (transfer) energy

4. 2. Mechanical Waves
Mechanical Waves are waves that transfer energy through a medium.
Created when a source of energy causes a vibration to travel through a medium.

5. 3. What is a Medium? Material through which a wave travels
Solids, liquids, and Gases
Examples:
waves on a pond?
Sound from stereo?
Earthquakes?
Liquid
Gas
Solid

6. 4. Two main types of Waves : Transverse and Longitudinal

7. 5. Longitudinal waves
Wave travels parallel to the particle motion (Same Direction)
Example – Sound Waves and Primary Waves
Sound waves traveling in air compress and expand the air in bands

8. LONGITUDINAL WAVE MOTION
Direction of wave

9. Surface Wave

10. 6. Transverse Waves
A transverse wave causes the particles to vibrate perpendicular to the direction of its motion.
Water waves are transverse waves
Direction of wave propagation.

11. TRAVERSE WAVE MOTION
Direction of wave

12. Types of Waves Longitudinal wave oscillations are in the
direction of motion
(parallel to the motion)
Transverse Wave
oscillations are perpendicular
to the direction of Motion

13. 7. Wave Parameters Wavelength (l) length or size of one oscillation
Amplitude (A) strength of disturbance (intensity)
Frequency (f) repetition / how often they occur per second

14. 8. Using your notes, answer the review questions!