Name Pd
UNIT II: Worksheet 3
1. Answer the following questions about the position/time graph to the right.
a) Describe a situation that would fit the graph to the right. (Invent a scenario.)
b) What units will the slope have? How do you know?
c) What are they units of? What is the slope the value of?
2. Answer the following questions about the velocity/time graph to the right.
a) Describe a situation that would fit the graph to the right. (Invent a scenario.)
b) Draw a vertical line from the end of the line on your graph down to the x-axis. How would you calculate the area of that shape?
c) What are the units of the area? How do you know?
d) What is the area the value of?
3. a) How far did the object move in the first 8 seconds? In what direction did it move?
b) How far did the object move in the next 10 seconds? In what direction did it move?
c) How far did the object move in 18s?
d) At the end of the 18 s, how far is the object from where it was at 0 seconds? What direction is it from where it started? (Physicists call how far and what direction displacement.)
e) On the graph below, sketch a position/time graph for the object’s trip. Use the sketch to determine at what time the object was at the same location as the start of the trip. On each axis, label the beginning and endpoints of each line you draw.
The problems on this worksheet are to be solved using graphs, even if you are able to solve them using algebraic equations.
4. Paula Ticks moves from position 180 m to position 85 m in 5.0 s. What was her average velocity?
5. Billy Yunair bikes east for 50 s to his friend’s house at 10.0 m/s. He takes 5.0 s to drop off his Physics data. He then walks west for 80 s at 3.0 m/s. What was his displacement for the trip?
6. The motion of Milly Yunair is shown on the graph to the right.
a) What is Milly’s displacement for the time shown on the graph? (Show each step of your work.)
b) When is she again at the same position as at time = 0 s? How do you know?
c) On the grid to the right, make a quantitative graph for position vs time. (Be sure to number the scale on the position axis.)
d) Check to see if your answer to part b is correct. How can you tell?