Science in Focus: Force and Motion
About the Workshops
1. Making an Impact
2. Drag Races
3. When Rubber Meets the Road
5. Keep on Rolling
6. Force Against Force
7. The Lure of Magnetism
MouseLab
Questionnaire
Supplemental Resource List

Channel-Talk

To post a question or reply, you can send an email to channel-talkforce@learner.org.

From: MTweedy@aol.com
Date: Thu Jun 27 2002 - 17:55:35 EDT

  • Next message: MTweedy@aol.com: "[Channel-talkforce] force and motion questionnaire"

    A particpant who teaches 9th grade science has questioned the correct answers
    to the pretest for item numbers: 2, 8, and 9.

    He says item # 2.'s answer should be d. - that none of the above are correct;
    # 8.'s answer should be a. - that the windshield exerts a greater force on
    the bug than the bug exerts on the windshield, and that # 9.'s answer should
    be that the small car exerts a greater force on the truck than the truck
    exerts on the car.

    Please explain the correct answer choices.

    Thanks, Mary Tweedy