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Item NG103002: Objects give off energy in the form of electromagnetic radiation at any temperature, and that energy can be transferred between the objects even when they are not touching each other.

Which of the following is true about how energy can be transferred from one object to another by electromagnetic radiation?

  1. Objects must be so hot that they are glowing to give off electromagnetic radiation that can transfer energy to another object.
  2. Objects give off electromagnetic radiation at any temperature, but they must be touching each other in order for energy to be transferred between the objects.
  3. Objects give off electromagnetic radiation at any temperature, and energy can be transferred between the objects even when they are not touching each other.
  4. Most objects do not give off electromagnetic radiation so they cannot transfer energy by electromagnetic radiation to another object.
Distribution of Responses
Chart showing distrubtion of responses for Item EG103002
Scale Score for Item Difficulty
(200[Easy]-800[Difficult])
504
Students Responding Correctly
Group Correct Total Percent
Overall 2507 6293 40%
Grades
  4–5N/AN/AN/A
  6–8 1339 3593 37%
  9–12 1168 2700 43%
Gender
  Male1218298741%
  Female1244318339%
Primary Language
  English2196545240%
  Other25870037%

View data table