Summary: Astronomy
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Read the summary and the most important questions on Astronomy
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Astronomy- Midterm Review
This is a preview. There are 17 more flashcards available for chapter 08/03/2017
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What are the two main elements combined to make a star?
Hydrogen and Helium -
The life span of a star depends on its
mass or size -
________ occurs when 4 numbers of hydrogen atoms are squeezed together to make 1 Helium atom for energy.
Nuclear Fusion -
Our Sun is an example of a Yellow Star. True or False?
True -
A force that is causing the expansion of the universe to accelerate:
Dark Energy -
The astroid-like bodies that formed the building blocks of the planets:
Planetesimal -
Leftover thermal energy from the big bang:
Cosmic background radiation -
A large cloud of gas and dust, such as the one that formed our solar system
Solar nebula -
A theory that the universe formed in a huge explosion:
Big Bang -
Matter that can be detected only by its effects on the motion of objects around it
Dark matter
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