2016年Physics Bowl物理碗真题PDF下载
1.Which one of the following choices represents the smallest amount of time?
(A) 1 day (B) 1 minute (C) 1 second (D) 1 week (E) 1 year
2.The position vs. time graph of an object moving on a horizontal line is shown. At what time(s) is the object moving with its greatest speed?
(A) At time
你可能还关注