Nov. 7, 2017 You need: Clean paper / pencil Motion notes HW: Lightning McQueen and Christy’s trip to the zoo…graphs. Warm Up: Why does the marble at the top of the ramp have POTENTIAL energy? I CAN: analyze and illustrate speed through graphs. Today we review metrics quickly – and then go back to MOTION. On Friday we did a little “inquiry” about spheres – and how to describe them. The goal was to work on truly describing the motion – and then whittling it down to description of the motion.

Conversion in the METRIC system… NAME! RIGHT Kilo Hecto km Deka hm dkm deci LEFT centi Meter Liter Gram dm milli cm mm

How can we describe motion? Motion can be described by: DISTANCE (how far did it travel?) TIME (how long did it travel?) SPEED (how fast did it travel?) DIRECTION (which way did it go?) ACCELERATION (does the motion change?)

In math terms… Distance Speed = Time A “change in position over time” is the same as saying: Distance Speed = Time

D S T Speed = Distance Time Time = Distance Speed Distance = Speed x Time D S T

Speed vs. Velocity SPEED – tells you have fast or slow something is moving (changing position). Example = 25 km/h VELOCITY – tells you speed AND DIRECTION! (changing position in a certain direction) Example = 25 km/h EAST

Leg 3 Leg 2 Leg 5 Leg 4 Leg 1 A. The car stopped for 1 min.

A. The car stopped for 1 min. B. The car drove about ¼ meters per minute.

A. The car stopped for 1 min. B. The car drove about ¼ meters per minute. C. Lightning went 3 meters in 5 minutes.

C. Lightning went 3 meters in 5 minutes. A. The car stopped for 1 min. B. The car drove about ¼ meters per minute. D. The car traveled 2 meters/min.

D. The car traveled 2 meters/min. C. Lightning went 3 meters in 5 minutes. A. The car stopped for 1 min. B. The car drove about ¼ meters per minute. E. This shows the fastest speed Lightning went all day.

E. This shows the fastest speed Lightning went all day. D. The car traveled 2 meters/min. C. Lightning went 3 meters in 5 minutes. A. The car stopped for 1 min. B. The car drove about ¼ meters per minute.

Leg 1 A. Sandy walked to track practice in 30 minutes. The track was 4 km away. B. Sandy went to track practice 3 km away in 15 minutes. C. Sandy ran to track practice in 3 minutes. D. Sandy walked to track practice in 10 minutes. The trip was 3 km.

Christy Christy wanted to visit the zoo, which is 20 kilometers from her house. To help her get there, her mother drove her to the bus stop 5 kilometers away from home and toward the zoo. The trip took 5 minutes. She had to wait for the bus for 5 minutes. Christy was reading on the bus and missed her stop. She finally got off the bus 10 minutes later at the next stop 1 kilometer past the zoo. It took Christy 15 minutes to walk back to the zoo.

Now you try to build a graph. Choose a table of data from the choices at your table. Copy it onto your paper. Looking over your data, hypothesize about which Time Graph you think would be the best match to your data. (Be sure to write the letter of the graph you’ve chosen – and sketch it).

Hypothesis Actual You build a graph…cont’d. 3. Now graph the data from your data table. Actually draw out the graph onto graph paper. 4. Does your actual graph match the one that you THOUGHT was a match? Why or why not? Hypothesis Actual

You build a graph…cont’d. 5. Now, find the story or “interpretation” that you think would best match your data table and graph. 6. Write at least three sentences explaining why you think this is the best match.