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22 Cards in this Set
- Front
- Back
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This sparkling glass separates light by the wavelengths.
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Prism
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Scattering of light by colloidal particles
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Tyndall effect
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Causes clouds to appear white, even though water droplets are transparent
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Scattering
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A lens that produces an image that is real, inverted, and larger than the actual object
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Concave Lens
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A lens that produces an image that is virtual, upright, and smaller than the actual object
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Convex
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The frequency of sound decreases as the source of the sound approaches the listener
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Doppler effect
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As the distance from the source of a sound increases, this decreases.
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Pitch
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Process by which animals emit sound to detect prey.
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Echolation
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These waves are used to monitor certain types of heart disease and to treat cancer.
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Ultrasonic waves
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Sound waves consist of densely packed areas called compressions and loosely packed areas called ____.
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rarefactions
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Because they vibrate at right angles to the direction that the waves travel, EM waves are called ______.
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transverse waves
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Electromagnetic waves are made of these vibrating fields.
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electric and magnetic
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All object emit EM waves because they contain electric charges that are always in ___.
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motion
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EM waves sometimes behave as these particles.
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photons
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EM waves are different from sound waves because they can travel through this.
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Space (or a vacuum)
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Our skin uses these EM waves to produce Vitamin D.
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Ultraviolet (UV)
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These EM waves are used by airport security to screen passengers.
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X-rays
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These EM waves are used for radiation therapy
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Gamma waves
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These EM waves are used for the telegraph, phonograph, and MRI's.
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Radio waves
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These EM waves are used for communication, satellite signals, and cooking.
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Microwaves
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Energy from these EM waves provide heat from a fire-place
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Infrared waves
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These EM waves consist of all colors we can see.
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Visible light waves
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