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chapter 1-3 vocab
vocab test
Question | Answer |
---|---|
Diffraction | The change in direction of a wave when it encounters an obstacle or edge. |
Refraction | The bending of waves as they pass from one medium to another at an angle |
Standing Wave | A pattern of vibration that resembles a stationary wave. |
Reflection | the bouncing back of a wave when it meets a surface or a boundary. |
Constructive interference | Interference that increases amplitude. |
Destructive interference | -Interference that decreases amplitude. |
Principle of superposition | Method of adding Crests and Troughs of Interfering waves to describe a new wave. |
Beats | Sounds produced by the interference of waves that are used to tune Piano Strings. |
Interference | the combination of two or more waves that result in a single wave. |
Nodes | -Point in a standing wave that have no vibration due to destructive interference. |
Sound | is produced when matter vibrates. |
Pitch | depends on the frequency of a wave. |
Infrasonic | A sound that is below the range of human hearing. |
Ultrasonic | A sound that is above the range of human hearing. |
Doppler | Is the change in frequency/pitch of a sound. |
Acoustics | The science of sound. |