A2L Item 010

  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.

Using a stopwatch to measure the time for a ball to fall a distance of 1 meter, and based upon 3 measurements of the time, a student obtained a value for the gravitational constant of g = 9.4 +/- 0.2 m/s2. What can be done to improve the accuracy of the data?

  1. Take more data
  2. Allow the ball to fall a larger distance
  3. Use a digital timer
  4. Allow the ball to roll down a slope rather than freefall
  5. Use a heavier ball
  6. More than one, but not all, of the above would improve the accuracy
  7. All of the above would improve the accuracy
  8. None of the above would improve the accuracy
  9. Cannot be determined