## Item EG078001: When comparing two cars traveling at the same speed, the car that has more motion energy weighs more than the car that has less motion energy.

Two cars are traveling down a road at the same speed. Car 1 has more motion energy (kinetic energy) than Car 2. Does Car 1 weigh more than, less than, or the same as Car 2?

- Car 1 weighs more than Car 2.
- Car 1 weighs less than Car 2.
- Car 1 weighs the same as Car 2.
- More information is needed to compare the weights of the cars.

- Distribution of Responses

- Students Responding Correctly

Group | Correct | Total | Percent |
---|---|---|---|

Overall | 1166 | 3276 | 36% |

Grades | |||

6–8 | 592 | 1907 | 31% |

9–12 | 572 | 1359 | 42% |

Gender | |||

Male | 612 | 1590 | 38% |

Female | 529 | 1621 | 33% |

Primary Language | |||

English | 1037 | 2850 | 36% |

Other | 96 | 334 | 29% |