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Science Chapter 1

vocabulary words for science (light and energy) chapter 1

TermDefinition
Wave A disturbance involving the transfer of energy from place to place.
Energy In science, it is defined as the ability to do work.
Medium The material through which a wave travels.
Mechanical waves Waves that require a medium to travel.
Transverse wave A wave that vibrates the medium at right angles, or perpendicular, to the direction in which the wave travels.
Longitudinal wave A wave that vibrates the medium in the same direction in which the wave travels.
Compression An area where the coils are close together.
Rarefaction An area where the coils are spread apart.
Crest A high point on a transverse wave.
Trough A low point on a transverse wave.
Surface waves Waves that are a combination of transverse and longitudinal waves. This type of wave travels along a surface that separates two mediums.
Amplitude The maximum distance the medium vibrates from the rest position.
Wavelength The distance between two corresponding parts of a wave.
Frequency The number of waves that pass a given point in a certain amount of time.
Speed How far a wave travels in a given amount of time.
Reflection An interaction with a surface, in which a wave hits a surface and any part of the wave the cannot pass through the surface bounces back.
Refraction The bending of waves due to a change in speed.
Diffraction A wave interaction, in which a wave moves around a barrier or through an opening in a barrier, then bends and spreads out.
Interference The interaction between waves that meet.
Constructive interference Interference in which waves combine to form a wave with a larger amplitude than any individual wave's amplitude.
Destructive interference Interference in which two waves combine to form a wave with a smaller amplitude than either original wave had.
Standing wave A wave that appears to stand in one place, even though it is two waves interfering as they pass through each other.
Node In a standing wave, destructive interference produces points with zero amplitude.
Antinodes Points of maximum amplitude on a standing wave are called antinodes.
Resonance An increase in the amplitude of a vibration that occurs when external vibrations match an object's natural frequency.
Created by: KiraZ22