What Keeps Light from Escaping from a Black Hole Is

question 38

Multiple Choice

What keeps light from escaping from a black hole is its

• A) strong electric field.
• B) strong magnetic field.
• C) strong gravitational field.
• D) absorbing atmosphere.

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Definitions:

Cognitive Surplus

The combination of free time and the digital tools that allow people to use that time to engage in collaborative, creative activities online.

Computer Forensics

The practice of collecting, analyzing, and reporting on digital data in a way that is legally admissible, often used in the context of cybercrime investigations.

Computer Literacy

Being familiar enough with computers that a user knows how to use them and understands their capabilities and limitations.

QR Code

A machine-readable optical label that contains information about the item to which it is attached, often used for storing URLs or other data that can be read by camera-equipped smartphones.