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Science Chapter 1
vocabulary words for science (light and energy) chapter 1
| Term | Definition |
|---|---|
| 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
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