Science: Wave Review – Flashcards
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The movement of matter in the same direction as a wave travels ( A spring moving back and forth horizontally)
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Compressional
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The highest point of a wave
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Crest
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The bending of a wave as it passes around a barrier
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Diffraction
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How many wavelengths pass a fixed point each second
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Frequency
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When two or more waves overlap and combine to form a new wave
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Interference
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A material which wave transfers energy through it
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Medium
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Decreases
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If the wavelength INCREASES, the frequency...........?
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Decreases
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If the frequency INCREASES, the wavelength..........?
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The spread apart portion (less dense region) of a compressional wave
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Rarefraction
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The bending of a wave as it moves from one medium to another
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Refraction
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Ability of an object to vibrate by absorbing energy at its natural frequency
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Resonance
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When waves continuously interfere with each other
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Standing Wave
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The movement of matter at right angles to the direction that the wave travels
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Transverse
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The lowest point of a wave
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Trough
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A repeating disturbance that transfers energy through matter or space
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Wave
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The distance between one point on a wave and the nearest point just like it
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Wavelength
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When a wave strikes an object and bounces off
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Reflection
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States that the angle of incidence is equal to the angle of reflection
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Law of Reflection
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The measure of energy in a wave
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Amplitude
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Compressional
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Which wave carries more energy and frequency ....a compressional or transverse wave?
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Because the matter in the wave can be traveling at right angles or back and forth
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How do scientists know that seismic waves can be either compressional or transverse?
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Because that means the wave will be bigger.
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Why do surfers like water waves with high amplitudes?
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No it wouldn't because only a trained opera singer can get that high of a pitch to break objects
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Will loud sounds from traffic near a school break glass objects inside the school? Explain.
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It transfers energy through something from one place to another
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What do waves transfer?
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No; Waves CARRY ENERGY through an empty space or medium, but DO NOT transport MATTER
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Do waves carry or transfer matter? Explain.
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A medium
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What must a mechanical wave travel through?
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Wave speed is how fast a wave travels; Speed=Frequency x Wavelength
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What is wave speed and how can you calculate it?
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Because a solid is dense with the molecules closer together; air molecules are farther apart
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Why does a sound wave travel faster in a solid than air?
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The boat rides the waves and the waves go under the boat. This causes the boat to NOT move into a different position.
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What happens when a wave comes in contact with a boat?
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Vibration and Energy
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Waves are created by ______ and carry ______?
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Increases
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If the wavelength INCREASES, the period........?
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Increases
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If the period INCREASES, the wavelength ........?
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Decrease
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If the frequency of the wave INCREASES, the period will.........?
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Decrease
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If the period of a wave INCREASES, the frequency will............?
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The Median
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What can change the speed of a wave?
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A seismic or longitudinal wave
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What is another name for a compressional wave?
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Compressional is where the medium is displaced PARALLEL; Transverse is where the medium is displaced PERPENDICULAR
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What is the major difference between Compressional waves and Transverse waves?
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Because is solid is more dense than air. In air, the molecules are far apart.
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Why does a sound wave travel faster in a solid than in air?
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A louder sound or 'amplitude' carries more energy (takes more energy to be loud)
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What is the difference between amplitude and energy of a sound wave when you shout across the room and when you speak softly?
