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Science Stack
Matthew's Stack
| Term | Definition |
|---|---|
| crest | high point of a wave |
| trough | low point of a wave |
| amplitude | greatest distance from resting position of a wave |
| wavelength | distance between 2 consecutive similar points on a wave |
| frequency | number of waves that pass a certain point in a given amount of time |
| reflection | bouncing back of waves upon reaching another surface |
| refraction | bending of waves due to a change in speed |
| diffraction | bending of waves around the edge of an obstacle |
| interference | interaction of waves that occur at the same place at the same time |
| standing wave | wave that doesn't appear to be moving |
| wave | traveling disturbance that carries energy from one place to another |
| medium | material through which mechanical wave travels |
| surface wave | wave that consists of a combination of transverse and longitudinal waves |
| resonant frequency | frequency at which a standing wave occurs |
| transverse wave | wave in which the motion of the medium is at right angles to the direction of the wave |
| longitudinal wave | wave in which the motion of the medium is parallel to the direction of the wave. |
| infrasound | 20Hz or less |
| ultrasound | 20,000 Hz or more |
| sonar | what is a system for detecting objects under water |
| hertz | unit frequency is measured in |
| constructive interference | 2 waves combining to make a bigger wave |
| destructive interference | 2 waves combining to make a smaller wave |
| ultraviolet | above violet |
| infrared | below red |
| X-ray | an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials |
| vacuum | a space entirely devoid of matter |
| radar | sends a pulse of radio waves which is reflected back to the monitor |
| visible light | the EM waves that you can see. necessary for life on earth |
| gamma rays | highest EM waves. given off by some radioactive materials |
| matthew | macfadden |