chapter 23 Vocabulary Assessment – Flashcards
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is a travelling oscillation.
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wave
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Its formula is the inverse of the formula for frequency.
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period
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refraction is when waves bend when they enter another material and diffraction is when waves bend around an object or outward after exiting a hole.
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refraction and diffraction
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The note A in the musical scale has a frequency of 220 Hz.
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frequency
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A pendulum is a kind of oscillator in that it has repeating cycles of motion.
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oscillator
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When the periodic force matches the natural frequency of an object, the object experiences resonance.
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resonance
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If you disturb water in a single point, circular waves will be created.
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circular wave
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Water waves are an example of this kind of wave: transverse wave.
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transverse wave
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To have a high amplitude on a swing, your friend needs to push you with a large periodic force.
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amplitude and periodic force
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One unit of harmonic motion is called a cycle.
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cycle
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The process of a wave bouncing off a surface is called reflection.
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reflection
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The harmonic motion of a boy on a swing is like the motion of a pendulum
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pendulum
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The amplitude of two waves gets larger when constructive interference occurs.
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constructive interference
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The distance from one crest to the next is a wave's wavelength.
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wavelength
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This kind of force pulls a system back to equilibrium: restoring force.
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restoring force
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Sound waves are an example of this kind of wave: longitudinal wave.
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longitudinal wave
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The amplitude of two waves will cancel when destructive interference occurs.
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destructive interference
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absorption is the process of the amplitude of a wave diminishing as it enters another material.
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absorption
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The motion of a girl running is called linear motion and the motion of a girl riding a Ferris wheel is called harmonic motion.
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linear motion and harmonic motion
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One hertz equals one cycle per second.
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hertz
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The wave front of a plane wave is perpendicular to the direction of motion of this wave.
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wave front
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The crests of plane waves look like parallel lines.
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plane waves
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When I hit a drum, it will vibrate at its natural frequency.
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natural frequency
