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Ch. 29 Questions
Study 4 Test
| Question | Answer |
|---|---|
| Where can you see the Northern Lights? | North Pole |
| In the equation (E=mc2) what does C mean? | Speed of Light |
| What do you call dark spots on the sun’s photosphere? | Sunspots |
| What does Einstein’s equation explain? | It explains how mass converts to energy |
| What is another name for the northern lights? | Aurora Borealis |
| Where a planet’s orbit is closest to the sun? | Perihelion |
| An ancient greek classification system that is based on how bright a star appears | Apparent Magnitude |
| The energy output of a star’s surface per second | Luminosity |
| Apparent change in position by the observer | Parallax |
| What does stellar mean? | Properties of a star |
| Visible light recorded according to wavelength | Electromagnetic Radiation |
| How bright would an object be if it was placed at a distance of 10 parsecs? | Absolute Magnitude |
| The planet’s distance from the sun | Astronomical Unit |
| Eruptions from the sun’s surface | Solar Flare |
| An arc of flaming gas from the chromosphere | Prominence |
| A group of stars that form a pattern | Constellation |
| Diagonal group of stars in the H | R Diagram: 90 % of the stars are? |
| Star cluster not densely packed | Open |
| Densely packed stars | Globular |
| Hot condensed dense object at center where star collapsed | Protostar |
| Dense cloud of interstellar cloud | Nebula |
| Dense, small remains of star where no light gets out | Black Hole |
| What is the brightest thing in the universe? | Most Luminous Galaxies |
| What are 3 ways to classify stars? | Composition, Brightness, Size |
| What are magnetic fields caused by? | Movement of gas in convection zone |
| What is a prominence? | An arc of flaming gas on the sun’s chromosphere |
| Energy produced in the sun’s core is created by? | Nuclear fusion |
| What is the hottest layer of the Sun’s atmosphere? | Corona |
| What is the first step in the formation of a star? | Nebula |
| In the Hertz Sprung Diagram, where are the large, hot stars found? | Upper left corner |
| The Sun consists of what? | Hydrogen (70.4%) and Helium (28%) |
| What are the 3 types of spectrums? | Continuous, Absorption, Emission |
| What spectrum are dark bands found in? | Absorption |
| Where can matter be converted into energy in the Sun? | Core |
| When hydrogen fuses into helium, what happens? | It explodes so energy is released |
| When are Northern Lights seen? | During the winter after solar flares |
| What are 3 types of flares on the sun? | Prominence, Solar Flare, and Coronal Mass Ejection |
| How long do sunspots last? | They last 11.2 years and if doubled 22.4 years |
| How many constellations do they have? | 88 constellations |
Created by:
mjys02
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