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Astronomy Vocabulary
Vocabulary for the upcoming test
| Question | Answer |
|---|---|
| Spectroscopy | The study of light depending on its wavelength |
| Incandescent | To omit light when hot |
| Corona | Crown or gas in the atmosphere |
| Continuous Spectrum | Rainbow, produced by incandescent solid, liquid or gas under high pressure |
| Bright Line Spectrum | Produced by hot incandescent gas under low pressure |
| Dark Line Spectrum | Sun is a giant ball of incandescent gas, gives off continuous spectrum but mercury in the corona leaves a black line if you pull out any color. |
| Doppler Shift | The change in the frequency or wavelength of sound or light due to the source moving. |
| Flourescent | Doesn't give off complete spectrum just gives off mercury and heat. |
| Incandescent | Gives off light when hot and a continuous spectrum |
| Rarefractions | Compressions make rarefractions become compressed and creates more compressions |
| Compressions | Where the medium is bunched together They lose energy as quickly as heat and soundwave dies out |
| Frequency | The number of compressions in a unit of time |
| Infrasonic | Too few compressions so you can't hear |
| Ultrasonic | A range most people can hear. |
| High Frequency | A lot of compressions in a given unit of time |
| Low Frequency | Low but large compressions more energy and lasts a lot longer |
| Wavelength | Distance between two adjacent troughs or crests |
| Amplitude | Half a wavelength |
| Frequency | Number of waves that pass a certain point at a given time |
| Water waves | Wind blows over and they are created |
| Wavebase | Half the wavelength and the point where you stop feeling energy of wind |
| Fetch | How long the wind can blow unobstructed, makes big waves |
| Roaring 40's | No land on fourty degrees south |
| Swells | Waves that are dying down |
| Whitecaps | White on top of waves from strong waves |
| Long shore current | Water runs along the shore crashing in. |
| Riptide | Water returning to the ocean |
| Tsunami | Harbour wave caused by either meteor impact, underwater landslides, earthquakes |
| Lumineferous ether | Medium between two waves Einsteins theory that light has a duel nature light has the ability to travel as a wave and a particle at the same time. |
| Photon | Partical that light is traveling as, a packet of light energy |
| Light | Electromagnetic Radiation |
| Spectrum | Radio Infared Visible UV xrays gammarays |
Created by:
Arielle Gelb
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