Method

  1. All the apparatus was collected.
  2. The retort stands, boss clamps, light-gates and metal ramp were set up as shown in figure \ref{733451}
  3. A mark was drawn on the side of the ramp every \(\SI{10}{\centi\meter}\).
  4. The first light-gate was moved to the bottom of the ramp and the second to the tom.
  5. The ball was rolled from the top to test that the light-gates were functional.
  6. The data-logging software was initiated.
  7. The first light-gate was moved to the \(\SI{10}{\centi\meter}\) mark.
  8. The ball was rolled from the top five times.
  9. The first light-gate was moved down \(\SI{10}{\centi\meter}\).
  10. Steps 8-9 were repeated until \(\SI{90}{\centi\meter}\).
  11. The data was recorded in a table