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Waves
| Question | Answer |
|---|---|
| Waves | oscillations that carry energy |
| Oscillation | an up-and-down or back-and-forth motion |
| Vacuum | space that has no matter in it |
| Mechanical Waves | Waves that move through matter |
| Types of Mechanical Waves | Waves in water, Sound Waves |
| Electromagnetic Waves | Waves that move through vacuums |
| Types of Electromagnetic Waves | Light Rays, Radio Waves |
| Wave Properties | Amplitude, Wavelength, Frequency, Wave Speed |
| Amplitude | one half of the distance between a crest and a trough |
| Crest | a wave's high point |
| Trough | a wave's low point |
| Resting Point | the center of the wave, where a flat line would be, Amplitude is measured from here |
| Wavelength and Symbol | the distance between a point on on wave to the same point on another |
| Wavelength Units | measured in the Greek Letter Lambda, or ƛ, or measured in meters |
| 3 Ways to Measure Wavelength Are: | Crest to Crest, Trough to trough, or resting point to resting point |
| Frequency | the number of waves that pass a fixed point in a given time. |
| Units for Frequency | hertz (Hz), written as f |
| Wave Speed | the time it takes a waves to move from one point to another |
| Wave Speed Units | m/s |
| Wave Speed Equation | v = fƛ |
| Medium | the material mechanical waves travel in |
| Reflection | when a wave bounces off a surface |
| Law of Refraction | says that when a wave gets reflected, it reflects at the same angle that it bounced off at |
| Reflected Ray | the reflected ray |
| Incident Ray | the ray moving towards a reflection point |
| Refraction | the bending of waves |
| Diffraction | the bending of waves around a barrier or the spreading of waves past a small opening |
| Interference | waves colliding with each other |
| Constructive Interference | waves combing to form a larger wave |
| Destructive Interference | waves interfering and canceling out |
| Absorption | the transfer of energy from a wave to the medium |
| Absorbed Colors | the colors that an object absorbs |
| Reflected Colors | the colors that an object reflects |
| Electromagnetic Spectrum | the varied wavelengths of transverse waves that can travel through a vacuum |
| Visible Light Spectrum | the spectrum of light humans can see |
| Longitudinal Wave | waves that oscillate in the same direction as the wave |
| Expansion | where the waves expands and gets farther apart |
| Compression | where the wave compresses and gets closer together |
| Intensity | how much energy the wave carries past a certain area |
| Units of Sound | decibel (dB) |
| Pitch | the perception of sound wave frequencies |
| Analog Signal | waves that carry information but constantly vary in amplitude and frequency |
| Digital Signal | wave pulses that carry information as a 1 or 0 |
Created by:
NeumaticKarma18
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