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Stars & EM Spectrum
| Question | Answer |
|---|---|
| Apparent Magnitude | a property that describes how bright the star looks to an observer on Earth |
| Blue Star | This is the hottest type of star |
| Absolute magnitude | describes the true brightness of a star, if they were all viewed from the same distance |
| Yellow Star | This is type of star has a medium temperature |
| Radiation Zone | part of the Sun where energy travels from the center of the sun to the surface |
| Convection Zone | The surface layer of the Sun where hot gas rises to the surface, then cools and sinks |
| Core | The part of the Sun where nuclear fusion combines hydrogen atoms into helium. |
| Red Star | This is the coolest type of star. |
| Corona | A part of the Sun's atmosphere that is visible during an eclipse. |
| Solar Flare | A bright sudden eruption of hot hydrogen gas in the sun's atmosphere. |
| Sun Spot | A relatively cool area on the sun's photosphere |
| Prominence | A glowing loop of gas which erupts from the surface of the sun. |
| Electromagnetic Spectrum | The way we classify wavelengths of energy |
| Radio wave | The weakest wave, with the longest wavelength. Used for Wifi. |
| Microwave | Used to send cell-phone signals and cook food |
| Infrared | Heat. Used in thermal photography |
| Visible Light | The wavelengths of energy that you can see. Red, orange, yellow, green, blue, indigo, & violet. |
| Ultra Violet | The rays from the sun that can give you sunburn, skin cancer, & cataracts |
| X-Rays | These waves pass through skin and muscle, allowing us to take pictures of bones. |
| Gamma Rays | The strongest waves with the shortest wavelength. Given off by nuclear reactions. |