average speed - total distance an object traveled by the total time it has traveled, displacement - difference between the starting position and the final position of an object that has moved, motion - change of an objects position over time, speed - measure of distance traveled per unit of time, velocity - speed in a particular direction, balanced forces - forces that produce a net force equal to zero, net force - the sum of all the forces acting on an object, Newtons first law  - law that states an object at rest willstay at rest and an object in motion will stay in motion unless a force acts on the object, unbalanced forces - forces that produce a net force other than zero,

排行榜

快閃記憶體卡是一個開放式範本。它不會為排行榜生成分數。

視覺風格

選項

切換範本

恢復自動保存: ?