9671716
Description
Flashcards by Angel Antopina, updated more than 1 year ago
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Created by Angel Antopina
over 7 years ago
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| Question | Answer |
| Ordinary matter consisting of protons, electrons and neutrons | Baryonic Matter |
| Matter that has gravity but does not emit light | Dark Matter |
| Source of Anti-Gravity | Dark Energy |
| Early stage in the formation of a star | Proto-star |
| a nuclear fision reaction responsible for the energy produced by stars | Thermonuclear reaction |
| stars that fuse hydrogen atoms to form helium | Main Sequence Stars |
| The universe is ________ old | 13.8 billion years old |
| The Solar System is _______ old | 4.5 - 4.6 billion years old |
| The universe is composed of | dark energy, dark matter, baryonic matter |
| Baryonic Matter is _____ % | 4.60% |
| Dark Matter is _________% | 24% |
| Dark Energy is ________% | 71.40% |
| The three most abundant elements | Hydrogen, Helium, Lithium |
| The building blocks of the universe | Stars |
| A cluster of billions of stars | Galaxy |
| Diameter of the universe | 91 billion light years |
| Ways by which Astronomers estimate the age of the universe | by estimating the age of the oldest stars, by measuring the rate of expansion of the universe explorating back to the universe |
| This theory proves that the galaxies are moving away | RedShift Theory |
| Redshift theory is discovered by | Edwin Hubble |
| This theory states that the frequency or pitch of receeding source decreases as it moves away | Doppler Effeect |
| Cosmic Microwave Background is discovered by | Arno Prenzias and Robert Widrow Wilson |
| They believed that the universe arose from an infinite sea at the first rising of the sun | Ancient Egyptians |
| They believed that the universe is vomitted by Mbomba. | Kuba people of Central Africa |
| They believed that the universe came from the sacrificed Purusha's Body | India |
| They believed that there is a supreme being that created the universe | Monotheistic religion, Christians,Judaism,and Islams |
| This theory stated that new matter is created as the universe expands thereby maintaning its density | Steady State Theory |
| Steady State Theory is theorized by | Bondi, Gould, and Hoyle |
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