问题
填空题
中国跳水队员被人们称为“梦之队”。图所示是跳水运动员跳水时的情景。运动员在离开跳板到落入水中的过程中，若忽略其他能量转化，则动能的变化情况是________________，重力势能的变化情况是 ____________，机械能的变化情况是____________。
答案
先减小后增大；先增大后减小；不变
搜题请搜索小程序“爱下问搜题”
中国跳水队员被人们称为“梦之队”。图所示是跳水运动员跳水时的情景。运动员在离开跳板到落入水中的过程中，若忽略其他能量转化，则动能的变化情况是________________，重力势能的变化情况是 ____________，机械能的变化情况是____________。
先减小后增大；先增大后减小；不变
| 配对阅读。方框内有6条信息，请将这些信息与下面的5个人物配对，并将答案的字母编号填写在 括号内。
| ||||||
| ( )1. Tina is studying the history of China. She wants to see lots of pictures about the old China. ( )2. Mary will celebrate her birthday tomorrow. She wants to go out with her friends. They all enjoy American jazz music. ( )3. Roy is going to buy some CDs about pop music. ( )4. Ted is a teacher who likes playing football. He would like to see any football games next week. ( )5. Sam wants to eat some Chinese food, English food and Japanese food. |