044 SC 130 Physical science • Name:

d = ѵt | GPE = mgh | KE = ½mѵ² | momentum = mѵ

Mathematical models on the half shell background rectangle major grid lines axes x-axis and y-axis a square root path a quadratic path data points as circles linear regression line data points as rectangles data points as diamonds text layers Mathematical relationships x-axis labels A B C

  1. _____ Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a RipStik moving at a constant linear velocity with no acceleration.
  2. _____ Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a RipStik moving at an increasing velocity at a constant acceleration.
  3. _____ Identify by the letter which of the mathematical relationships on the graph represents the height versus velocity relationship for a marble rolling from a height h down a banana leaf and onto a flat table.
  4. ____________________ A marble with a mass of 5 grams rolls 30 centimeters in 0.60 seconds. Calculate the momentum of the marble.
  5. ____________________ Calculate the gravitational potential energy relative to the floor for a 30 kilogram child standing on a table one meter high. Use 9.8 m/s² for the acceleration of gravity g.
  6. ____________________ Calculate the kinetic energy for a 30 kilogram child traveling at a velocity of 0.7 m/s on a RipStik.
  7. ____________________ A marble is rolled from a height h of 20 cm on a banana leaf marble ramp. Use the theoretic equation ѵ=44.2h   to calculate the velocity of the marble at the bottom of the ramp.
  8. The actual marble speed in class for a marble rolled from a height of 20 cm was less. Why?
  9. Marbles on ruler track Suppose two five gram marbles hit a line of five marbles that each have a mass of five grams. How many marbles will be "kicked out" from the end of the line of marbles? Why?
  10. In the first diagram a marble of slightly larger mass hits a line of marbles with a marble of slightly less mass on the end. In the second diagram a slightly less massive marble hits a line with a marble of slightly more mass on the end. Researchers Ben and Mihkel noted that a single marble was "kicked out" in both cases. What does this suggest about relationship between mass and the number of marbles kicked off the end of the line? Marbles on ruler track
  11. In the first diagram a slow moving marble hits the line of marbles. In the second diagram a fast moving marble hits the line of marbles. In both instances a single marble is kicked out. What facts were found to be true for the marbles that were kicked out in these instances? Marbles on ruler track