physics study questions

phy Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. A horse leaves the stable and trots 350 m due west to the end of a field. The horse then trots 210 m due east back toward the stable. What is the total displace￾ment of the horse? a. 550 m [E] b. 550 m [W] c. 150 m [E] d. 140 m [W] ____ 2. Which position-time graph represents an object that is moving westward at a constant velocity? a. b. c. d. ____ 3. Which statement is true about the type of motion represented by this posi￾tion-time graph? a. The object is moving westward at a constant velocity. b. The object is stationary at a location to the west of the reference posi￾tion. c. The object is stationary at a location to the east of the reference position. d. The object is moving eastward at a constant velocity. ____ 4. What is the average velocity of a baseball that is hit and travels 19.2 m in 14.5 s? a. 0.76 m/s b. 19.2 m/s c. 278.4 m/s d. 1.32 m/s ____ 5. Which of the following is an example of a scalar quantity? a. displacement b. position c. average velocity d. distance ____ 6. You want to determine how long it takes a car to accelerate from 10 m/s [W] to 12.9 m/s [W] if it experiences an average acceleration of 2.1 m/s2 . Which expression would you solve to find this measure of time? a. (12.9 + 10) 2.1 b. (12.9 - 10) 2.1 c. (12.9 - 10) 2.1 d. (12.9 10) 2.1 ____ 7. What is the displacement represented by this graph over the time interval from 0 s to 5 s? a. 50 m [E] b. 100 m [E] c. 100 m [W] d. 50 m [W] ____ 8. Which of the following is an example of a scalar quantity? a. momentum b. force c. displacement d. speed ____ 9. How do you determine velocity from a velocity–time graph? a. Read information from the graph. b. Find the area. c. Take the slope. d. none of the above ____ 10. Which equation would you use to solve a problem for final velocity that does not directly involve displacement? a. b. c. d. ____ 11. Which equation would you use to determine the displacement of an object moving with uniform acceleration given a value for acceleration? a. b. c. d. ____ 12. Which of the following directions is equivalent to [N 15° W]? a. [E 75° N] b. [N 75° W] c. [N 75° E] d. [W 75° N] ____ 13. In which direction does the vector on this compass point? a. [S 25° E] b. [S 65° E] c. [E 25° S] d. [S 65° W] ____ 14. Which of the following vectors correctly represents the sum of the two vec￾tors shown? a. b. c. d. ____ 15. Which of the following vectors represents the vector 7.2 m [N 55° W]? a. b. c. d. ____ 16. Which of the following directions is equivalent to [W 60° S]? a. [S 60° W] b. [S 30° W] c. [W 30° S] d. [S 30° E]