What Is a Rem

question 12

Multiple Choice

What is a rem?

• A) A radiation unit that is determined by measuring ionization of air
• B) A device containing a crystal that absorbs radiation energy and discharges it in the form of light when heated
• C) A factor that quantifies the relative health risks of various types of radiation
• D) A radiation unit used to measure dose equivalents for occupational exposure

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Definitions:

Entertainment Function

Media’s role in helping people rest, relax, and escape the pressures of everyday life.

Television

A system for transmitting visual images and sound that are reproduced on screens, primarily used for broadcasting entertainment, news, and information.

Hot Media

Media that contain a great deal of information but involve only a single sensory organ and demand very little from their audience (e.g., newspapers).

McLuhan

A Canadian philosopher best known for his work on media theory, including the concepts of the global village and the medium is the message.