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Vocab Light & Sound
Vocabulary for light and sound unit
| Question | Answer |
|---|---|
| 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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