Position - is the location of an object, Distance - The amount of space between two objects, Direction - it tells which way a line points from one object or place to another , Motion - is the process of changing position, speed - is the measure of how fast or slow something moves, statistician - collect and study data to help solve real-world problems., force - is a pull or push, friction - a force that occurs when one object rubs against another., balanced forces - are forces that cancel each other out when acting together on an object, unbalanced forces - forces that do not cancel each other out and that cause an object to change its motion.,

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: ?