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Quinn science O1

The Energy of Waves

QuestionAnswer
medium a substance through which a wave can travel
transverse wave a wave in which the particles of the wave's medium vibrate perpendicular to the direction the wave is traveling, light waves, electromagnetic wave
longitudinal wave a wave in which the particles of the medium vibrate back and forth along the path that the wave travels, sound waves, mechanical waves
amplitude the maximum distance a wave vibrates from its rest position
wavelength the distance between one point on a wave and the corresponding point on an adjacent wave
frequency the number of waves produced in a given amount of time
wave a disturbance that transmits energy through matter or space
wave speed the speed at which a wave travels, speed = wavelength times frequency, m/s
reflection the bouncing back of a wave after it strikes a barrier or an object
refraction the bending of a wave as it passes at an angle from one medium to another
diffraction the bending of waves around a barrier or through an opening, depends on wavelength and size of barrier or opening the wave encounters
constructive interference interference that results in a wave that has a greater amplitude than that of the individual waves, crest meets with a crest
destructive interference interference that results in a wave that has a smaller amplitude than that of the individual waves, crest meets with a trough
standing wave a wave that forms a stationary pattern in which portions of the wave do not move an other portions move with large amplitudes,
resonance occurs when an object vibrating at or near resonant frequency of a second object causes the second object to vibrate
hertz unit used to express frequencey, one hertz is one wave per second, Hz
echo a reflected sound wave
resonant frequency the frequencies at which standing waves are made
mechanical wave wave that requires a medium in order to transmit energy, sound is an example
electromagnetic waves waves that do not require a medium in order to transmit energy, light is an example
perpendicular at right angles
compression section of a longitudinal wave where the particles are crowded together
rarefaction section of a longitudinal wave where the particles are less croweded together or spread apart
crest highest point of a transverse wave
trough lowest point of a transverse wave
Created by: cquinnd15.org