| Definition | Term |
|---|
| in optics, a system that consists of two or more plane surfaces of a transparent solid at an angle with each other | |
| an image from which light rays appear to diverge, even though they are not focused there; cannot be projected on a screen | |
| a transparent object that refracts light waves such that they converge or diverge to create an image | |
| a wave in hich the particles of the medium move perpendicularly to the direction the wave is traveling | |
| a phenomenon that occurs when two objects naturally vibrate at the same frequency | |
| the distance from any point on a wave to an identical point on the next wave | |
| the highest point of a transverse wave | |
| sound navigation and ranging, a system that uses acoustic signals and echoes to determine the location of objects or to communicate | |
| the lowest point of a transverse wave | |
| a wave that requires a medium through which to travel | |
| the combination of two or more waves that results in a single wave | |
| a pattern of vibration that simulates a wave that is standing still | |
| in physics, the time that it takes a complete cycle or wave oscillation to occur | |
| any sound wave with frequencies higher than 20,000 Hz | |
| a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening | |
| a wave in which the particles of the medium vibrate parallel to the direction of wave motion | |
| slow vibrations of frequencies lower than 20 Hz | |
| the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through | |
| point of highest pressure in a longitudinal wave | |
| a physical environment in which phenomena occur | |
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