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Choice One Choice Two Choice Three Choice Four

A. B. C. D.

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Choice One Choice Two Choice Three Choice Four

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  1. A B C D Driving a car at in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. A motion diagram is created by illuminating her car with a strobe at 2 second intervals. Which of the following best represents the correct diagram? Mary’s car is represented by a dot. • Choice One • Choice Two • Choice Three • Choice Four

  2. v v v v v v time time time time time time Driving a car in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop at a constant rate of deceleration in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. Which of the following graphs best represents her velocity? • Choice One • Choice Two • Choice Three • Choice Four • Five • six

  3. a a a a time time time time A B C D Driving a car in the positive x direction at 60 MPH, Mary tests her brakes by coming to a complete stop in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. Which of the following best represents her acceleration? • Choice One • Choice Two • Choice Three • Choice Four

  4. Driving a car in the positive x direction at 60 MPH (equivalent to 88 ft/sec), Mary tests her brakes by coming to a complete stop in 4 seconds. Then she resumes speed, taking 8 seconds to return to 60 MPH. What is the value for her acceleration while stopping? • 88 ft/sec2 • 44 ft/sec2 • 22 ft/sec2 • -22 ft/sec2 • -44 ft/sec2 • -88 ft/sec2

  5. These questions exhibited 4 out of the 5 representations of a situation. In physics, you should get used to using all of them. • Verbal • Pictorial • Physical • Graphical • Mathematical

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