Waves, Light, & Sound: Vocabulary and Concepts
Chapter 14/15
Vocabulary
Waves, Light, & Sound
Amplitude
The maximum distance that the
particles of a wave’s medium
vibrate from their rest position
Crest
The highest point of a wave
Diffraction
A change in the direction on a
wave when the wave finds an
obstacle or an edge, such as an
opening
Doppler Effect
An observed change in the
frequency of a wave when the
source or observer is moving
Electromagnetic Wave
A wave that consist of oscillating
electric and magnetic fields, which
radiate outward at the speed of
light
Frequency
The number of cycles or vibrations
per unit of time
Interference
The combination of two or more
waves of the same frequency that
results in a single wave
Longitudinal Wave
A wave in which the particles of
the medium vibrate parallel to the
direction the wave is traveling
Mechanical Wave
A wave that requires a medium
through which to travel
Medium
The matter through which a wave
travels
Photon
A unit or quantum of light
Pitch
A measure of how high or low a
sound is perceived depending on
the frequency of sound waves
Reflection
The bouncing back of a ray or wave
when it hits a surface that it does
not go through
Refraction
The bending of a wave front as the
wave front passes between two
substances in which the speed of
the wave differs
Sound Wave
A longitudinal wave that is caused
by vibrations and that travels
through a material medium
Standing Wave
A pattern of vibration that
simulates a wave that is standing
still
Transverse Wave
A wave in which the particles of
the medium move perpendicular
to the direction the wave is
traveling
Trough
The lowest point of the wave
Wave
A periodic disturbance in a solid,
liquid or gas as energy is
transmitted through a medium
Wavelength
The distance from any point on a
wave to an identical point on the
next wave
This chapter covers essential vocabulary and concepts related to waves, light, and sound, including amplitude, crest, diffraction, Doppler effect, electromagnetic wave, frequency, interference, longitudinal wave, mechanical wave, medium, photon, pitch, reflection, refraction, sound wave, standing wave, transverse wave, trough, and wavelength.
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Presentation Transcript
Chapter 14/15 Vocabulary Waves, Light, & Sound
Amplitude The maximum distance that the particles of a wave s medium vibrate from their rest position
Crest The highest point of a wave
Diffraction A change in the direction on a wave when the wave finds an obstacle or an edge, such as an opening
Doppler Effect An observed change in the frequency of a wave when the source or observer is moving
Electromagnetic Wave A wave that consist of oscillating electric and magnetic fields, which radiate outward at the speed of light
Frequency The number of cycles or vibrations per unit of time
Interference The combination of two or more waves of the same frequency that results in a single wave
Longitudinal Wave A wave in which the particles of the medium vibrate parallel to the direction the wave is traveling
Mechanical Wave A wave that requires a medium through which to travel
Medium The matter through which a wave travels
Photon A unit or quantum of light
Pitch A measure of how high or low a sound is perceived depending on the frequency of sound waves
Reflection The bouncing back of a ray or wave when it hits a surface that it does not go through
Refraction The bending of a wave front as the wave front passes between two substances in which the speed of the wave differs
Sound Wave A longitudinal wave that is caused by vibrations and that travels through a material medium
Standing Wave A pattern of vibration that simulates a wave that is standing still
Transverse Wave A wave in which the particles of the medium move perpendicular to the direction the wave is traveling
Trough The lowest point of the wave
Wave A periodic disturbance in a solid, liquid or gas as energy is transmitted through a medium
Wavelength The distance from any point on a wave to an identical point on the next wave
