Wave Behavior Project

by Ashley Benoit


Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Example: of reflection is light, sound and water waves.


Physics 11.1.1b - The Law of Reflection


Refraction: the change in direction of a wave passing from one medium to another caused by its change in speed. Example: waves in deep water travel faster than in shallow

Online Article: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0ahUKEwi1y6SK897KAhUIVyYKHeiDCXQQFghLMAc&url=http%3A%2F%2Fwww.britannica.com%2Fscience%2Frefraction&usg=AFQjCNHToohuqHia13FK2118MNqaJvz_bg

Bending of Light by refraction | Light | Physics


Diffraction: A bending of waves around obstacles and openings

Example: The radio waves bend around the building and the reception is still good on the opposite side

Physics - Waves - Diffraction

Constructive Interference

Constructive interference: is the interference of two or more waves of equal frequency

Example: loud areas from speakers (sound waves).

constructive interference

Destructive Interference

Destructive Interference: Is the interference of two waves of equal frequency with opposite phase.

Example: Noise canceling headphones (sound waves)

destructive interference


Resonance: when one object vibrating at the same natural frequency of a second object forces that second object into vibration motion.

Example: acoustic resonances of musical instruments and our vocal cords


Doppler Effect

Doppler Effect: is the change in frequency of a wave for an observer moving relative to its source.

Example: When an emergency vehicle passes by you it's frequency of the sirens are higher than normal when it passes you and then moves away.

The Doppler Effect: what does motion do to waves?

Beats (sound waves only)

Beats: an interference pattern between two sounds of slightly different frequencies.
Beats Physics