Waves Study Guide – Flashcards
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Visible Spectrum
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Part of the electromagnetic spectrum we can see
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Hertz
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unit we use to measure frequency
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Amplitude
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distance from resting position to the crest
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Resting position
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another name for this is "line of equilibrium."
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Trough
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lowest part on a wave
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Frequency
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measure of how many wavelengths occur in ONE second
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Wavelength
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distance from 1 corresponding point to the next corresponding point
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Wavespeed
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Distance a wave travels in ANY amount of time
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Crest
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highest point on a wave
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Oscillation
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back and forth motion (vibration)
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Electromagnetic Spectrum
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full range of electromagnetic waves
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ROY G. BIV
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the order of the light spectrum: Red, Orange, Yellow, Green, Blue, Indigo, Violet
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Reflection
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light bouncing off a surface AT THE SAME ANGLE it hits
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Refraction
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Light bending when traveling from one medium to another. EXAMPLE: spoon in a cup of water
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Absorption
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the reason objects look colored. The color we see is reflected, not "soaked in"
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Transparent
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matter that allows light to pass through easily. EXAMPLE: glass
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Translucent
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allows some, but not all light through. EXAMPLE: wax paper
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Opaque
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light does not pass through at all EXAMPLE: desktop
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Sound
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vibrations that travels through air or other materials (mediums)
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Amplitude of a sound wave
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This part of the wave affects the volume of a sound
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Frequency of a sound wave
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This property or part of the wave affects the pitch of a sound
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CFL Bulb
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produce less heat, use less energy, visible spectrum has distinct bars, cost more at the store but less on your bill, lasts longer, slightly more durable
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Incandescent Bulb
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produce more heat, use more energy, light spectrum is blended, color, cost less at the store but more on your bill, does not last as long
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Solid
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The state of matter that sound travels through the easiest.
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Empty Space
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Sound can not travel through this.
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vibration
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a rapid oscillation of a particle, back and forth across a central point
