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Universe/Galaxies
Questions for the Galaxy unit
| Question | Answer |
|---|---|
| What is the approximate age of the universe? | 13.7 Billion years old |
| What was formed 3 minutes after the big bang? | Hydrogen fused into Helium three minutes after the big bang. |
| What happens to atoms during fusion? | During Fusion atoms smash together. |
| What type of waves can we still detect in the universe? | We can still detect microwaves as evidence of cosmic background radiation. |
| After the big bang, when did stars and galaxies begin to form? | Stars and galaxies begin to form 300 million years after the big bang. |
| What is the universe always doing? | The universe is always expanding. |
| What is the most abundant element in the universe? | Hydrogen is the most abundant element in the universe. |
| what are the remaining waves from the big bang called? | The remaining waves from the big bang are called background radiation. |
| What color will space objects appear as they move further away from you? | Red |
| What is the law explaining that the universe is always expanding? | Hubble's Law |
| According to the Doppler Effect, what type of wavelength will things moving farther away from have? | longer wavelength |
| What is the name for the distance from a star where liquid water can exist on a planet? | The distance from a star to where liquid water can be found is known as the habitable zone. |
| What is Einstein's Theory of Relativity? | E=mc2. |
| How many astronomical unit wide is our solar system? | 80 astronomical unit across. |
| What measurement do we use to measure distance OUTSIDE the solar system | Light Year |
| What is used to measure objects in our own solar system. It is measured as the distance between the sun and the earth...approximately 93,000,000 mi. | Astronomical Unit |
| What is 200,000 light years wide? | Universe |
| Why is hydrogen significant? | It is the most abundant element and the simplest element and did not need strong Nuclear force to hold it's nucleus together. |
| What is one light year? | 6 trillion miles |
Created by:
nprincilus
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