GRAPHS

A Picture is worth a thousand data points

Set up your answer page in your science notebook:

• Analyzing Graphs:• 1. a.• b.• 2. a.• b.• 3. a.• b.• c.• 4.

Analyzing Graphs:1.A Day 1: In the first 7 minutes, how

do you know the jogger moved at a CONSTANT speed?

1.b. How far has she run in 5 min?

Write your answer in your notebook

2.a. Day 2: What could the jogger have been doing during segment 2?

2.b. How do you know?

3a. The graph below shows the motion of a remote control car. During which segment is the car moving the fastest? 3.b. The slowest? 3.c. How do you know?

4. The graph below shows the speed graph for a runner moving at a constant 200 m/min. What could the runner do to make the slope of the line rise?

Speed to Bathroom

0

10

20

30

40

50

60

70

0 5 10 15 20 25 30 35

Time (s)

Dis

tan

ce

(m

)

5. Did this girl really have to go to the bathroom?

6. How do you know?

Speed from bathroom

0

10

20

30

40

50

60

70

0 10 20 30 40 50 60

Time (s)

Dis

tan

ce

(m

)

7. Was this student concerned about what she was missing in

class?

How do you know?

My son and I went for a drive. This is the speed graph for that drive. The distance is in miles and the time is in

seconds.

8. During the drive we had to wait for several deer to cross the road. When did that happen? Explain.

9. When were we going downhill? Explain.10. When did we stop at a stop sign? Explain.11. When did we have to slow down to make a U-turn?

Explain.

Check your answers:1. a. Because the rate/slope does not change; she is still running 200 m/min1. b. 1000 meters2. Stopped to breath; take a drink; rest, etc.3. a. From 0-4 min; the speed is equal to 1m/sec b. the last segment the speed is only .66 m/sec c. rate/slope is less in the last segment 4. Run faster 5. yes!6. Because her speed is increasing at the end, so she is speeding up to get there faster; rate/slope is increasing

7.no; because her speed is slowing down; rate/slope is decreasing

Stop Here