Schottenbauer Publishing

Showing posts with label double. Show all posts
Showing posts with label double. Show all posts

Tuesday, September 23, 2014

Real Ice Skating Data from Child Double Runner Skates!

Easy access to the science of ice skating is provided by several book series from Schottenbauer Publishing! Books contain graphs, data, and diagrams of ice skating, figure skating, and hockey.

The graphs below are excerpted from Volume 1 of Glide, Spin, & Jump: The Science of Ice Skating, as well as a free pamphlet from the publisher. These graphs show a child's double-runner skate being pulled along a piece of real ice with a force meter, while position, velocity, and acceleration are measured by a motion detector from the back.






Discussion Questions

  1. For each graph, describe the motion of the skate in words. 
  2. How far does the skate travel in each graph?
  3. What is the maximum force on the skate?
  4. Is the force on the skate similar to the forces incurred during real skating?
  5. From these two graphs, can you determine the mass of the skate?
  6. How much physical work is occurs during the movement of the skate? 
  7. In which graph is the friction greater?
  8. Can the friction be calculated from these graphs?
  9. How accurate are these graphs? What is the margin of error, if any?
  10. Are these graphs relevant for real skaters? If so, how? 

Additional free graphs are available in a free pamphlet from the publisher's webpage. 

The following books from Schottenbauer Publishing contain similar types of graphs and data pertaining to the science of ice skating, figure skating, and hockey:

Graphs & Data for Science Lab: Multi-Volume Series
  • The Science of Ice Skating, Vol. 1-8
  • The Science of Hockey, Vol. 1-3
Anthologies of 28 Graphs
    • The Science of Figure Skating
    • The Science of Ice Hockey
    • The Science of Winter Olympic Sports

    In addition, the following books are suitable for younger children learning geometry:

    • The Geometry of Figure Skating
    • The Geometry of Winter Olympic Sports 

    Wednesday, August 13, 2014

    Ice Skate Comparison

    Ice skates are not all the same! Two extremes are hockey and figure skates. Because hockey skates have a smooth, curved blade on the front and the back, they can feasibly be tilted almost to a right angle while still gliding across the ice! In comparison, the blade of a figure skate has grooved teeth on the front, and a flat back blade. These features prohibit tilting of the figure skates during gliding. 

    What are the angles of maximum tilt for each of these skates?


    Hockey Skate (Left) and Figure Skate (Right)





    Two additional types of skates are shown below: bob skates and child double-runner skates. These skates are for children and are not traditionally sharpened, so they do not glide over the ice. How far could these skates rotate upwards to the front or back, before hitting the plastic or tipping over?  


    Bob Skate




     Child Double-Runner Skate



    Additional information on the science of ice skating is available on the Schottenbauer Publishing website. Books include the following:

    Geometry Series
    • The Geometry of Winter Olympic Sports
    • The Geometry of Figure Skating
    Graphs & Data for Science Lab (Book Series)
    • The Science of Ice Skating
    • The Science of Hockey
    Anthologies of 28 Graphs
    • The Science of Winter Olympic Sports
    • The Science of Figure Skating
    • The Science of Ice Hockey


    Additional Information

    Schottenbauer Publishing