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Vocab Light & Sound

Vocabulary for light and sound unit

The term describing sounds with frequencies higher than 20,000 Hz Ultrasonic
A disturbance that transmits energy through matter or space Wave
A mirror that curves out toward you, like the back of a spoon Convex mirror
The transfer of energy carried by light waves to particles of matter Absorption
The entire range of electromagnetic waves Electromagnetic spectrum
A substance through which a wave can travel Medium
A wave that can travel through space or matter and consists of changing electric and magnetic fields Electromagnetic wave
A wave in which the particles of the medium vibrate back and forth along the path that the wave travels Longitudinal wave
Matter that can transmit light, but also scatters the light as it passes through the matter Translucent
The process of using reflected sound waves to find objects Echolocation
A curved, transparent object that forms an image by refracting light Lens
The number of waves produced in a given amount of time Frequency
Occurs when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate Resonance
The term describing sounds with frequencies lower than 20 Hz Infrasonic
A wave that forms a pattern in which potions of the wave do not move and other potions move with a large amplitude Standing wave
a wave interaction that occurs when two or more wave overlap and combine Interference
The law that states tat the angle of incidence is equal to the angle of reflection Law of reflection
A lens that is thinner in the middle than at the edges Concave lens
The speed at which a wave travels Wave speed
A wave in which the particles of the wave’s medium vibrate perpendicularly to the direction the wave is traveling Transverse wave
Matter that does not transmit any light Opaque
The emission of energy in the form of electromagnetic waves Radiation
The distance between one point on a wave and the corresponding point on an adjacent wave in a series of waves; for e3xample, the distance between two adjacent crests or compressions Wavelength
Matter that light can be easily transmitted Transparent
The maximum distance a wave vibrates from its rest potion Amplitude
A reflected sound wave Echo
The most common unit used to express loudness Decibel
A material that gives a substance its color by absorbing some colors of light and reflecting others Pigment
The release of light energy by particles of matter that have absorbed energy Scattering
The bending of waves around barriers or through openings Diffraction
How high or low a sound is perceived to be Pitch
The passing of light through matter Transmission
A mirror with a flat surface Plane mirror
A mirror that is curved inward like the inside of a spoon Concave mirror
The bending of a wave as it passes at an angle from one medium to another Refraction
The bouncing back of a wave after it strikes a barrier or an object Reflection
A lens that is thicker in the middle than at the edges Convex lens
The apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound Doppler effect
How loud or soft a sound is perceived to be Loudness
Created by: weathersbee
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