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Item EG012002: A ball has more motion energy than a person when the ball is moving and the person is not moving.

A girl is sitting in a chair and throws a ball. After she throws the ball, she watches the ball move through the air. While the ball is moving through the air, does the girl or the ball have more motion energy (kinetic energy) and why?

  1. The girl has more motion energy because she is alive, and the ball is not.
  2. The girl has more motion energy because she weighs more than the ball.
  3. The ball has more motion energy because it is moving, and the girl is not.
  4. The ball has more motion energy because it is higher off the ground than the girl.
Distribution of Responses
Chart showing distrubtion of responses for Item EG012002
Students Responding Correctly
Group Correct Total Percent
Overall 1914 3086 62%
Grades
  6–8 1164 1923 61%
  9–12 744 1152 65%
Gender
  Male920149162%
  Female960153962%
Primary Language
  English1738271864%
  Other14030047%

View data table