Chapter 1 Interactions of waves. Key Terms Reflection Refraction Interference Constructive interference Standing wave Antinode Law of reflection Diffraction.

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Presentation transcript:

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.