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Item NG035003: The heating coils on an electric stove give off energy in the form of electromagnetic radiation at all temperatures, not just when they are hot.


When do the heating coils on an electric stove transfer energy by electromagnetic radiation?

  1. Only when they are too hot to touch
  2. Only when they are so hot that they are glowing
  3. The coils transfer energy by electromagnetic radiation at all temperatures.
  4. The coils do not transfer energy by electromagnetic radiation at any temperature.
Distribution of Responses
Chart showing distrubtion of responses for Item 035003
Scale Score for Item Difficulty
(200[Easy]-800[Difficult])
498
Students Responding Correctly
Group Correct Total Percent
Overall 511 1162 44%
Grades
  4–5N/AN/AN/A
  6–8 273 651 42%
  9–12 238 511 47%
Gender
  Male22852943%
  Female27161144%
Primary Language
  English451101444%
  Other4812339%

View data table