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Test 2
Ch 14 BLACK HOLES
8
Astronomy
Undergraduate 1
10/18/2009

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Cards

Term
What is the speed of light? List a property
Definition
300,000 km/sec (or 186,000 miles/sec); fastest speed known; always constant in vacuum.
Term
Results of Einstein Theory
Definition
length contraction, time dilation, increase in mass.
Term
What are black holes? Why aren't they visible to the naked eye?
Definition
Regions out of which no matter or any form of electromagnetic radiation can leave are black holes. NO electromagnetic radiation is able to escape from it is the reason why we can't not see them
Term
Singularity
Definition
General relativity predicts that in creating a black hole matter compresses to infinite density and zero volume
Term
Schwarzchild radius
Definition
The distance from the center of the black hole to its event horizon
Term
Event Horizan
Definition
Boundary of a black hole the point of no return
Term
There are two types of black holes Kerr Black Holes and Schwarzchild Black Holes which one rotates?
Definition
Kerr Black Holes
Term
How do you find a black hole?
Definition
by looking for the effects of gravity of black holes by their surroundings like star orbiting a unseen massive area
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