Name:_______________________________ Period: ______ Date: _____/_____/_____ MCAS Mechanics Graphs 1.3 Create and interpret graphs of 1-dimensional motion, such as position vs. time, distance vs. time, speed vs. time, velocity vs. time, and acceleration vs. time where acceleration is constant. 1. (MCAS Physics, 2014, #43) The graph below represents the motion of a car. Based on the graph, which of the following statements describes the motion of the car? A. The car initially travels at a constant speed and then stops. B. The car starts from rest and then travels at a constant speed. C. The car starts from rest and then accelerates at a constant rate. D. The car is initially moving and then accelerates at a constant rate. 2. (MCAS Physics, 2013, #5) An object is traveling in a straight line. The graph below shows the object’s velocity over time. Which line segment shows the object traveling with a constant, positive acceleration? A. segment W B. segment X C. segment Y D. segment Z 3. (MCAS Physics, 2013, #24) The graph below represents the motion of an object over four time intervals, W, X, Y, and Z. Over which time interval is the object moving the fastest? A. interval W B. interval X C. interval Y D. interval Z 4. (MCAS Physics, 2013, #41) The graph below illustrates the motion of a toy car during time intervals X, Y, and Z. The toy car is initially at rest. It is then pushed and released. Kinetic friction is acting on the toy car during which of the following time intervals? A. interval X only B. interval Y only C. intervals X and Z D. intervals Y and Z 5. (MCAS Physics, 2012, #38) The graph below represents the motion of a car as it moves along a straight road for 20 s. Which statement best describes the motion of the car over the 20 s? A. The car is initially at rest and then backs up for 10 s. B. The car moves 20 m in the first 10 s and then stops. C. The car travels at a constant speed for 10 s and then decelerates until it stops. D. The car travels at a constant speed of 20 m/s and then decelerates until it is traveling at a constant speed of 15 m/s. 6. (MCAS Physics, 2011, #31) The graph below shows the distance an object traveled over time. Which line segment represents the time interval during which the object was moving at a positive constant speed? A. segment W B. segment X C. segment Y D. segment Z 7. (MCAS Physics, 2010, #42) The graph below shows the speed of an object during a 10 s time interval. In which of the following time intervals is the speed of the object decreasing? A. between 0 s and 2 s B. between 2 s and 4 s C. between 6 s and 8 s D. between 8 s and 10 s 8. (MCAS Physics, 2009, #27) The graph below shows velocity measurements made as a car moved north for 25 s. How far did the car move during the first 15 s of the trip? A. 20 m B. 25 m C. 300 m D. 500 m 9. (MCAS Physics, 2008, #18) The graph below illustrates the position and time for a dog that runs to catch a stick and then returns with it. The dog caught the stick after 2 s. What was the dog’s average speed as he returned with the stick? A. His average return speed was 0.7 m/s. B. His average return speed was 0.9 m/s. C. His average return speed was 2 m/s. D. His average return speed was 4 m/s. 10. (MCAS Physics, 2007, #37) The graph below relates velocity to time. The graph would most likely apply to which of the following events? A. A soccer ball that is at rest is suddenly kicked. B. A ball is thrown upward and returns to the ground. C. A person who is running at a constant speed decides to run faster. D. A car traveling at a constant speed applies its brakes and comes to a stop.

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