19,879
edits
Changes
→Improving Accuracy
====Improving [[Accuracy]]====
: Calculate the [[weight]] added by [[measure|measuring]] its [[mass]] using an [[Electronic Balance|electronic balance]] on a flat, level surface each time and using the equation <math>W=mg</math> with <math>g=9.8</math>. This will give a more [[accuracy|accurate]] knowledge of the [[weight]] rather than relying on the number printed on the [[weight]]s.
: Ensure the glider remains motionless when no [[weight]] is attached. If the glider moves then adjust the feet on the [[Air Track|air track]] until the glider remains stationary.
: [[Lubricate]] the [[pulley]] to reduce the [[force]] of [[friction]] which acts against the [[weight]] added.