sample test questions
Multiple Choice Knowledge /10
Identify the choice that best completes the statement or answers the question.
____ 1. Which position-time graph represents an object that is moving westward at a constant velocity?
____ 2. Which position-time graph represents a stationary object at a location to the west of the reference position?
____ 3. A horse is galloping at an average velocity of 5.2 m/s [W]. What is the change in position of the horse after 22 s?
a.|0.24 m [W]|
b.|114.4 m [W]|
c.|158.08 m [W]|
d.|172.22 m [W]|
Three distances were measured: 45.678 m, 78.9 m and 1.23 m. What is the sum of these distances using the correct number of significant digits?
a.|125. 81 m|
d.|1.3 x 102 m|
____ 5. Which position-time graph represents an object with an increasing velocity moving in a westward direction?
____ 6. A car is passing another car on the highway. It increases its velocity from 12 m/s [E] to 21 m/s [E] over a time interval of 10 s. What is the car’s average acceleration?
____ 7. Which of the following is an example of a scalar quantity?
____ 8. Which of the following is an example of uniform velocity?
a.|A skydiver jumps out of an airplane and falls to the ground with increasing speed.|
b.|A truck travels a twisty highway ranging from 40 km/h to 70 km/h.|
c.|A horse trots around a circular track at a constant speed.|
d.|A car travels down a straight highway at a steady 95 km/h.|
____ 9. How do you determine acceleration from an acceleration–time graph?
a.|Read information from the graph.|
b.|Find the area.|
c.|Take the slope.|
d.|none of the above|