Term
| Describe the Big Bang Theory |
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Definition
| Implosion of concentrated matter and energy. |
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| When celestial bodies move toward each other, the electromagnetic waves are bunched together, resulting in a blue shift Doppler effect. |
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Definition
| any object in the universe outside of Earth's atmosphere, including moons, comets, plants, stars and galaxies. |
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Definition
| the apparent wavelength shifting of electromagnetic energy. |
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Definition
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| the large groupings of millions or billions of stars and other forms of mass held together by gravitation; our galaxy is called the Milky Way. |
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Definition
| an attractive force that exists between any two objects in the universe. |
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Term
| Describe Irregular Galaxy |
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Definition
| no orderly shape, less common than the other galaxies, closest to the Milky Way Galaxy. |
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Definition
| The actual brightness of a star. |
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Definition
| A spiral shaped galaxy which has over 200 billion stars, our solar system is part of this galaxy. |
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Definition
| The combining of the nuclei of smaller elements to form the nuclei of larger elements with some of the mass beng converted into energy. |
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Definition
| When celestial bodies move apart, the electromagnetic waves spread out causing a red shift Doppler effect. |
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Definition
| A large ball of gas held together by gravity that produces tremendous amounts of energy and shines. |
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Definition
| Everything that exists in any place - all the space, matter, and energy in existence. |
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Term
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Definition
| Ellipitical, Irregular , and Spiral |
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Term
| Which type of galaxy contains very little dust and gas? |
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Definition
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Term
| Which Galaxy has no orderly shape? |
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Definition
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Term
| Which type of Galaxy is shaped like a pinwheel and has huge spiral arms? |
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Definition
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Term
| Which shift moves away from the Earth...blue or red? |
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Definition
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Term
| Which shift moves toward the Earth...red or blue? |
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Definition
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Term
| Which shift supports the Big Bang Theory? |
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Definition
| Red shift - moving away from Earth - supports the Big Bang Theory. |
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Term
| How many contellations are in the Northern Hemisphere? |
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Definition
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Term
| What makes up a constellation? |
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Definition
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Term
| What causes constellations to move? |
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Definition
| Constellations change position with the seasons because the Earth revolves around the Sun. |
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Term
| What is the other name for the North Star? |
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Definition
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Term
| What is the difference between an astronomical unit (Au) and a light year? |
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Definition
| An Au = 150 million km; Light year = the time it takes light to travel in one year. |
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Term
| When did the Big Bang occur? |
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Definition
| 15 to 20 billion years ago. |
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Term
| What type of Galaxy is our solar system located in? And what is our Galaxy called? |
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Definition
| Spiral Galazy called the Milky Way Galaxy. |
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Term
| What are the different types of stars? |
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Definition
1. Red Giants;
2. Super Giants;
3. Dwarf Stars |
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Term
| What causes the daily motion of the stars around Polaris (North Star)? |
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Definition
| The Earth rotates on it's axis. |
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Term
| What color are the coolest stars? |
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Definition
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Term
| What color are the warmest stars? |
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Definition
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Term
| Which star classification contains about 90% of all stars? |
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Definition
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Term
| What group of stars does our Sun belong to? |
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Definition
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Term
| What is the luminosity of a star that has a temperature of 6000 degrees C? |
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Definition
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Term
| Which is brighter: a white dwarf or blue supergiant? Explain. |
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Definition
| Super giant because both the absolute magnitude and the luminosity are highest for supergiant stars. |
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Term
| What is absolute magnitude? |
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Definition
| The brightness of a star if placed the same distance from Earth as other stars. |
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Term
| What evidence do we use to prove the Big Bang Theory? |
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Definition
| The background radiation or left over energy from the implosion. |
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Term
| What is the explosion of a massive star at the end of it's life called? |
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Definition
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Term
| List in order of size from smallest to largest: Sun, Universe, Milky Way Galaxy, Solar System? |
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Definition
| Sun, Solar System, Milky Way Galaxy, Universe. |
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Term
| Where in the galaxy are stars born? |
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Definition
| Stars are born in the nebulae. |
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Term
| Name the only star in the sky to remain stationary as the other stars go around it? |
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Definition
| Polaris aka the North Star. |
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Term
| Based on the Red Shift, the universe is currently expanding or contracting? |
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Definition
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Term
| Which Doppler shift shows a lengthening of wavelength? |
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Definition
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Term
| Which Doppler shift shows a shortening of wavelengths? |
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Definition
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