## Item EG004004: A car has the most motion energy when it is traveling at the highest speed.

A man is driving a car. He slows down to stop at a stop sign.

When does the car have the most motion energy (kinetic energy)?

- When the car's speed is 30 miles per hour
- When the car's speed is 15 miles per hour
- When the car's speed is 0 miles per hour
- The car's motion energy is the same the whole time.

- Distribution of Responses

- Students Responding Correctly

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

Overall | 2003 | 3116 | 64% |

Grades | |||

6–8 | 1233 | 1948 | 63% |

9–12 | 761 | 1157 | 66% |

Gender | |||

Male | 983 | 1509 | 65% |

Female | 983 | 1551 | 63% |

Primary Language | |||

English | 1812 | 2742 | 66% |

Other | 154 | 305 | 50% |