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Chapter 1 Interactions of waves
Key Terms Reflection Refraction Interference Constructive interference Standing wave Antinode Law of reflection Diffraction Node Resonance
Reflection The bouncing back of an object or a wave when it hits a surface through which it cannot pass
Refraction The bending of waves as they enter a new medium at an angle.
Interference The interaction between waves that meet.
Constructive Interference The interference that occurs when waves combine to make a wave with a larger amplitude.
Destructive Wave The interference that occurs when two waves combine to make a wave with a smaller amplitude.
Antinode A point of maximum amplitude on a standing wave.
Law of Reflection The rule that the angle of reflection equals the angle of incidence.
Diffraction The bending of waves as they move around a barrier or pass through an opening.
Node A point of zero amplitude on a standing wave.
Resonance The increase in the amplitude of a vibration that occurs when external vibrations match an objects natural frequency.
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