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Wave Behaviors

Dive deep into the behaviors of waves in this unit, from refraction and diffraction to reflection and transmission. Understand how waves can interact through interference and learn about the impact of sound waves on perception. Engage in a hands-on recap activity to reinforce your understanding.

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Wave Behaviors

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  1. Wave Behaviors Unit 2: Waves

  2. What can waves do once they are traveling? • Waves can bend: Refraction • Usually caused by speed changes when moving from one medium to another. • The greater the speed change the greater the bend.

  3. What can waves do once they are traveling? • Diffraction:  occurs when waves bend around small obstacles, or when waves spread out after they pass through small openings • Example: Prisms

  4. What can waves do once they are traveling? • They can bounce back and turn around: reflection. • This happens when it meets a surface that does not absorb the energy of the wave. • All waves can do this. • Echoes: reflection of sound waves • Mirrors: reflection of light waves

  5. What can waves do once they are traveling? • They can simply pass through a given point or the medium: Transmission. • Sometimes not all the energy is transmitted. This is mainly seen when dealing with light waves.

  6. What can waves do once they are traveling? • They can absorbed by the medium. • This happens when the wave is not transmitted or reflected by the medium.

  7. Sometimes, waves can interfere with each other: • They can interfere constructively. This means that when two crests meet then they get added together to make a bigger crest. The same is said for when two troughs meet, when two compressions meet, and when two rarefactions meet.

  8. Sometimes, waves can interfere with each other: • They can interfere destructively. This is when a crest and a trough meet or compression and rarefaction meet, the interference will cause the two to cancel out or lesson in amplitude.

  9. Interference and Sound • Sound waves interfere with each other and can ultimately change what you hear. • Destructive interference makes sounds quieter; Constructive interference makes sounds louder. • Sound waves reflect in tubes or some musical instruments to produce standing waves which reinforce sound through constructive interference to make the sound louder.

  10. Recap

  11. Activity • You will be divided into groups of 2 or 3. There are 9 stations set up around the room. You are to go to each station and tell which behavior you are looking at and why you believe it is that behavior. • Work will be completed on a hand out and turned in when you are done.

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