Quiz Submission - Formative Quiz #1 Forces

Question 1 0 / 1 point Which position-time graph represents an object with an increasing velocity moving in a westward direction? a) b) c) d) Question 2 0 / 1 point Average velocity is the velocity of an object at a specific instant in time. True False Question 3 0 / 1 point In motion with uniform acceleration, the velocity of an object changes at a constant rate. True False Question 4 0 / 1 point Bryce leaves his home and walks 600 m due west to the library. He then walks 200 m due east and stops at the pharmacy. Which equation represents Bryce’s total displacement? a) 600 m [W] + 200 m [E] = 800 m [W] b) 600 m [E] + 200 m [E] = 800 m [E] c) 600 m [W] - 200 m [E] = 400 m [E] d) 600 m [W] - 200 m [W] = 400 m [W] Question 5 0 / 1 point Motion with non-uniform velocity is motion at a constant speed in a straight line. True False Question 6 0 / 1 point 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 Question 7 0 / 1 point Which of the following is an example of a vector quantity? a) mass b) acceleration c) density d) time Question 8 0 / 1 point How do you determine velocity from a position–time graph? a) Find the area. b) Read information from the graph. c) Take the slope. d) none of the above Question 9 0 / 1 point An acceleration-time graph is a graph describing motion of an object, with acceleration on the vertical axis and time on the horizontal axis. True False Question 10 0 / 1 point Acceleration is the rate of change of velocity. True False Question 11 0 / 1 point How do you determine acceleration from a velocity–time graph?