Returning Students: Course Login
California Driver's Permit, Drivers Education, Lessons, Tests
LOGIN

4. Physics and Natural Laws

Page 1 of 19 Next » Back to Lessons   Quiz  

72
13. Stopping Distance

Because friction is increased by the weight of your vehicle, a fully-loaded truck has more stopping power than does an empty one because it is heavier. The weight aides in stopping the vehicle by producing more friction between the tires and the road surface.


But this is true only if we disregard momentum. Because of the greater momentum of the loaded truck, it will actually have less stopping power.


Click on pictures to see full-size image




Lesson Summary


  

Lesson 4 Quiz


You will now answer 5 questions to test what you learned during this lesson. You must answer all questions correctly to receive completion credit for this lesson. You may answer the questions as many times as necessary to get them right.

You should review the lesson material if you don't do well on the quiz.

  1. According to the formula for stopping distance, how many feet will it take you to stop, from 60 mph?


    1.   
    2.   
    3.   
    4.   


  2. Centrifugal force:


    1.   
    2.   
    3.   
    4.   


  3. The best way to maximize the traction of your tires is to:


    1.   
    2.   
    3.   
    4.   


  4. The primary factor in decreasing the Kinetic Energy of an object is to:


    1.   
    2.   
    3.   
    4.   


  5. Gravity:


    1.   
    2.   
    3.   
    4.   



  

Page 1 of 19 Next »  Back to Lessons  Quiz  




Start Now! Get your California Drivers Ed Certificate