1. __________ __________ On Monday I rode a RipStik at 1.53 meters per second. At that speed, how far could I go in 131 seconds?
  2. __________ __________ On Monday I rode a RipStik at 1.53 meters per second. At that speed, how many seconds for me to travel 100 meters?
  3. __________ __________ On Wednesday I ran and juggled (joggled) 30 meters in eight seconds. What was my speed in meters per second?
  4. __________ __________ Based on either your own walking speed or those you heard calculated on Wednesday, what would be a typical walking speed for an SC 130 Physical Science student?
  5. On Wednesday evening I ran 4184 meters (2.6 miles) in 1907 seconds (31:47 min:sec).
    1. _____________ _________ What was my speed in meters per second?
    2. _____________ _________ I have run 122,954 meters (76.4 miles) since January first. I have 37,981 meters (23.6 miles) to run to reach a hundred miles of running in January. Based on my speed above, how much longer do I have to run at that speed to reach 100 miles? Give your answer in minutes - they are easier for me to work with when running than seconds!
  6. A ball was rolled at three different velocities (speeds). The data was plotted on the graph seen below.
    Three lines on a chart
    1. __________ __________ Calculate the velocity (speed) for the bottom (solid) line on the graph.
    2. __________ __________ Calculate the velocity (speed) for the the middle (dashed) line one the graph.
    3. __________ __________ Calculate the velocity (speed) for the highest (dotted) line on the graph.
    4. __________ Which ball roll is the fastest: the solid, dashed, or dotted line?
    5. __________ Which ball roll was the slowest: the solid, dashed, or dotted line?
    6. __________ __________ If the ball with the dotted line rolls for five seconds, how far will the ball roll in meters?
    7. __________ __________ How long in seconds for the ball with the dashed line to roll 20 meters?
  7. In laboratory two on a graph of time versus distance for a rolling ball, what physical quantity did the slope represent?
  8. For laboratory two, rolling balls, which measurement is likely to be the greater source of error and why - the time measurement or the distance measurement?

slope= ( y2 − y1 ) ( x2 − x1 )

distance d = velocity ѵ × time t

ѵ= Δd Δt