Think, Pair, Share Activity

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Presentation transcript:

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)

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

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

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.

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

4. Two main types of Waves : Transverse and Longitudinal

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

LONGITUDINAL WAVE MOTION Direction of wave

Surface Wave

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.

TRAVERSE WAVE MOTION Direction of wave

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

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

8. Using your notes, answer the review questions!