Position vs time graphs Of an object at
Position vs time graphs Of an object at rest Objective: Determine when and where an object stopped at on a p -t graph
If an object is staying in the same position for a time interval then it is… at rest. stopped. not moving. still. has a speed or velocity of 0 m/s, 0 m. p. h. What does this look like?
Describe what the object is doing at 1 second, 2 seconds, 3 seconds, etc. ? position 5 m 4 m At 1 seconds the object is located 4 meters from the origin 3 m 2 m 1 m 0 m 0 s 1 s 2 s time 3 s 4 s 5 s
Describe what the object is doing at 1 second, 2 seconds, 3 seconds etc. ? position 5 m 4 m At 2 seconds the object is located 4 meters from the origin 3 m 2 m 1 m 0 m 0 s 1 s 2 s time 3 s 4 s 5 s
Describe what the object is doing at 1 second, 2 seconds, 3 seconds etc. ? position 5 m From 0 to 5 seconds the object is located 4 meters from the origin 4 m 3 m 2 m 1 m 0 m 0 s 1 s 2 s time 3 s 4 s 5 s
• On a position vs. time graph, an object at rest is represented by a horizontal line.
• Number your whiteboards from 1 to 5 and answer the question about the graphs
1) When and where is the object at rest? position 10 m 8 m 6 m 4 m 2 m 0 m 0 s 1 s 2 s time 3 s 4 s 5 s
2) When and where is the object not moving? position 5 m 4 m 3 m 2 m 1 m 0 m 0 s 2 s 4 s time 6 s 8 s 10 s
3) When and where is the object still? +3 m position +2 m +1 m 0 m -1 m -2 m 0 s 5 s 10 s time 15 s 20 s 25 s
4) When and where does the object experience a speed = 0 m/s position +15 m +10 m +5 m 0 m -5 m -10 m 0 s 1 s 2 s time 3 s 4 s 5 s
5) When did the object stop the closest to the reference point? +6 m position +4 m +2 m 0 m -2 m -4 m 0 s 10 s 20 s time 30 s 40 s 50 s
1) When and where is the object at rest? position 10 m From 2 to 4 seconds the object is located 6 meters from the origin 8 m 6 m 4 m 2 m 0 m 0 s 1 s 2 s time 3 s 4 s 5 s
2) When and where is the object not moving? From 0 to 4 seconds the object is not moving at 4 meters away position 5 m 4 m From 8 to 10 seconds the object is not moving at 3 meters away 3 m 2 m 1 m 0 m 0 s 2 s 4 s time 6 s 8 s 10 s
3) When and where is the object still? +3 m From 15 to 25 seconds the object is located -1 meters from the origin position +2 m +1 m 0 m -1 m -2 m 0 s 5 s 10 s time 15 s 20 s 25 s
4) When and where does the object experience a speed = 0 m/s position +15 m +10 m From 1 to 3 seconds, at the 10 m mark +5 m 0 m -5 m -10 m 0 s 1 s 2 s time 3 s 4 s 5 s
5) When did the object stop the closest to the reference point? +6 m From 40 to 50 seconds, it is at rest 2 meters behind the reference point position +4 m +2 m 0 m -2 m -4 m 0 s 10 s 20 s time 30 s 40 s 50 s
• What would a position- vs- time graph look like of your desk as measured from the chalkboard -for the entire class period? • How would your graph be similar, different from your classmates?
- Slides: 20