motion - the action or process of moving or being moved., Friction - the resistance that one surface or object encounters when moving over another., gravity - the force that attracts an object toward the center of the earth, applied force - a force that is applied to an object by a person or another object. , push - a force on something to move it away, pull - a force that causes it to move toward oneself.,

Force & Motion

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？