Learning Path Questions and Exell MULTIPLE CHOICE QUESTIONS 2.1 DISTANCE AND SPE

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Learning Path Questions and Exell MULTIPLE CHOICE QUESTIONS 2.1 DISTANCE AND SPEED: SCALA R QUANTITIES 2.2 ON E-DIMENSIONAL DISPLACEMENT AND AND VELO CITY: VECTOR QUANTITIES 1. A scalar quantity has (a) only magnitude, (b) only direc- tion, (c) both magnitude and dirrection. 2. Which of the following is always true about the magni- tude of the displacement: (a) It is greater than the dis- tance traveled; (b) it is equal to the distance traveled (c) it is less than the distance traveled, or (d) it is less than or equal to the distance traveled? 3. A vector quantity has (a) only magnitude, (b) only direc- tion, (c) both direction and magnitude. 4. What can be said about average speed relative to the magnitude of the average velocity? (a) greater than, (b) equal to, (c) both a and b 5. Distance is to displacement as (a) centimeters is to meters, (b) a vector is to a scalar, (c) speed is to velocity, (d) distance is to time. 2.3 ACCELERATION 6. On a position-versus time plot for an object that has a constant acceleration, the graph is (a) a horizontal line, (b) a nonhorizontal and nonvertical straight line, (c) a vertical line, (d) a curve. 7. An acceleration may result from (a) an increase in speed, (b) a in speed, (c) a change of direction, (d) all of the preceding 8. Anegative acceleration can cause (a) an increase in speed, (b) a decrease in speed, (c) either a or b. 9. The gas pedal of an automobile is commonly referred to as the accelerator. Which of the following might also be called an accelerator: (a) the brakes, (b) the steering wheel, (c) the gear shift, or (d) all of the preceding? Explain.

Explanation / Answer

1a 2d 3c 4c 5c 6d 7d 8b 9c 10b 11c 12c 13c 14d 15b 16d 17a 18c 19a 20b

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