如果某一对象的移动性被设置为 Movable （可移动）且它已设置简单碰撞，您可以勾选 Physics Rollout （物理展示）内的 Simulate Physics （模拟物理表现），这样该对象会在您按下 Simulate in Editor （在编辑器中模拟）或 Play in Editor （在编辑器中播放）时进行物理表现的模拟。
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Welcome to the new Unreal Engine 4 Documentation site!
We're working on lots of new features including a feedback system so you can tell us how we are doing. It's not quite ready for use in the wild yet, so head over to the Documentation Feedback forum to tell us about this page or call out any issues you are encountering in the meantime.
We'll be sure to let you know when the new system is up and running.