Item CL083002: At any time during a day there is only one point on the surface of the earth where sunlight strikes at a 90° angle.

Which of the following statements is TRUE about where and when sunlight strikes the surface of the earth at a 90° angle over the course of one day?

  1. At any time during a day there is only one point on the surface of the earth where sunlight strikes at a 90° angle.
  2. There are certain times during a day when sunlight strikes many points on the surface of the earth at a 90° angle.
  3. There are certain times during a day when sunlight strikes one point on the surface of the earth at a 90° angle, and there are some times that it does not strike anywhere at a 90° angle.
  4. Over the course of a day, sunlight never strikes any point on the surface of the earth at a 90° angle.

Distribution of Responses

Chart showing distrubtion of responses for Item CL083002

Percent of students responding correctly

Overall25%
Grades 6–824%
Grades 9–1226%
Male25%
Female25%
Primary Language is English25%
Primary Language is not English31%

View data table