ANSWER
• Constructive interference:, ,two water waves collide to create a larger wave
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• Destructive interference:, ,sound waves from two sources meet and the noise gets dimmer
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• Doppler effect:, ,a source of sound is traveling relative to an observer which causes the observer to hear a lower pitch.
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• Reflection:, a radar wave bounces off a satellite and returns to Earth
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• Diffraction:, ,the sound of a conversation bends around the corner of a building.
Step-by-step explanation
Let's see what these phenomena mean, which will help us match the examples:
• Frequency,: it is the number of cycles the wave makes in 1 second.
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• Wavelength,: it is the distance between any two successive crests of a wave.
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• Reflection,: occurs when a wave hits a surface and bounces back.
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• Refraction,: occurs when a wave traveling through a certain medium enters a new medium and changes its direction.
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• Diffraction,: occurs when a wave passes through an opening in an obstacle - it can be a slit, a hole, a corner, etc.
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• Constructive interference,: occurs when the interference of two waves results in the reinforcement of the waves.
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• Destructive interference,: occurs when the interference of two waves results in the cancelation of a part of the totality of the waves.
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• Doppler effect:, it is the phenomenon when the frequency of a wave changes - increases or decreases, as the observer or/and the source of the wave change their positions relative to the other.