Black Holes: Escape Velocity and the Singularity

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

How big does a star's core need to be to form a black hole?

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1. The initial velocity an object requires to break free from a celestial body's gravitational field is called the:

2. This is a point of zero volume and infinite density into which matter in a black hole falls into:

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About This Quiz & Worksheet

In some ways, black holes are as mysterious today as they were when Reverend John Mitchell first conceived of them. Use this quiz/worksheet combo to test your understanding of the terminology and concepts associated with black holes, including escape velocity and singularity.

Quiz & Worksheet Goals

In this astronomy assessment you'll be tested on:

  • An infinitely dense point with zero volume
  • Velocity needed to break free from a gravitational field
  • Formation of black holes

Skills Practiced

  • Critical thinking - apply relevant concepts to examine information about black holes in a different light
  • Defining key concepts - ensure that you can accurately define main phrases, such as gravitational pull, escape velocity, and singularity
  • Information recall - access the knowledge you've gained regarding the collapse of a star's core and the formation of black holes

Additional Learning

The accompanying lesson, Black Holes: Escape Velocity and the Singularity, covers the following objectives:

  • Define singularity and explore its relationship to black holes
  • Define escape velocity and its relevance to the speed of light
  • Discover the process by which black holes are created
  • Compare and contrast black holes and other celestial bodies, such as white dwarves
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