1 / 19

Wave Behaviors: Reflection, Refraction, Diffraction, Interference, Standing Wave

Explore the different manners in which waves behave when they come in contact with matter or other waves. Learn about reflection, refraction, diffraction, interference, and standing waves.

rameriz
Télécharger la présentation

Wave Behaviors: Reflection, Refraction, Diffraction, Interference, Standing Wave

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Wave BehaviorsWe will discuss different manners in which a wave can behave when it comes in contact with matter or other waves!

  2. 1. Reflection • REFLECTION – occurs when a wave strikes an object or surface and bounces off • Examples – mirrors, seeing colors • All types of waves – SOUND, WATER, and LIGHT can be reflected • ECHO – when a sound wave hits another object which reflects it back to you

  3. 1. Reflection • INCIDENT BEAM – the beam striking a reflective object • REFLECTED BEAM – the beam that bounces off a reflective object • NORMAL – line drawn perpendicular to the surface of the reflective object • ANGLE OF INCIDENCE (i) –angle formed by the incidence beam and normal

  4. 1. Reflection • ANGLE OF REFLECTION (r) – angle formed by the reflected beam and normal • LAW OF REFLECTION – the angle of incidence is equal to the angle of reflection

  5. 1. Reflection

  6. 1. Reflection

  7. 2. Refraction • REFRACTION – the bending of a wave (changes direction) caused by a change in its speed as it moves from one medium to another. The GREATER the change in speed, the MORE the wave bends. • Examples: eye glasses, contact lenses, microscopes, sparkle of a diamond, prism hanging in a window

  8. 2. Refraction

  9. 3. Diffraction • DIFFRACTION – object causes a wave to change direction and bend around it • Examples: ______ waves change direction when they bend around islands (water waves bending), _________ someone from around a corner (sound waves bending)

  10. Refraction vs. Diffraction • A. Both cause waves to BEND • B. Refraction occurs when waves pass THROUGH an object • C. Diffraction occurs when waves pass AROUND an object

  11. 3. Diffraction

  12. 4. Interference • INTERFERENCE – the ability of two or more waves to combine and form a new wave when they overlap • This new wave exists only while the two original waves continue to OVERLAP

  13. 4. Interference • A) CONSTRUCTIVE INTERFERENCE – waves added together as they overlap • A. CRESTS of two waves arrive at the same place at the same time • B. Amplitude of new wave is equal to the SUM of the amplitudes of the original wave

  14. 4. Interference

  15. 4. Interference

  16. 4. Interference • B) Destructive interference – waves subtract from each other as they overlap • A. Crest of one wave meets TROUGH of the other wave • The amplitude of new wave equal to the DIFFERENCE between the amplitudes of the waves that overlapped

  17. 4. Interference

  18. 5. Standing Wave • STANDING WAVE – special type of wave pattern that forms when waves are equal in wavelength and amplitude but travel in opposite directions continuously interfering with each other • Ex: string of a violin is played with a bow, it vibrates and creates standing waves in the string to create a rich tone

  19. 5. Standing Wave

More Related