以下哪个是机械能转化为热能的例子?

热声光学 - 第六章

Quiz
•
Physics, Science
•
7th - 10th Grade
•
Hard
Teo Jing Yang
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
绿色植物进行光合作用
汽车燃烧汽油启动
流星划过天空
钟摆不停地摇摆
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
摩擦焊接金属这个过程是把机械能转化为________。
热能
化学能
核能
电能
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小明将活塞向下压时,打气筒的外壁会
发热。原因是什么?这是因为压缩气体______。
体积减少
体积变大
膨胀
做工
4.
MULTIPLE SELECT QUESTION
1 min • 10 pts
空气清新喷雾器持续喷出时,罐体会变凉,这是为什么?(有超过一个答案)
气体对外做工,热能减少,温度降低
气体对外做工,热能增加,温度降低
罐内发生汽化现象,汽化吸热
罐内发生汽化现象,汽化放热
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小华将一段底部封闭的薄金属管固定在桌上,里面放入一些乙醚,用橡皮塞塞紧,将一根绳子绕在管外并迅速来回拉绳子。一段时间后橡皮塞会跳起,这是因为:
绳子与管壁摩擦产生热量做工温度降低,乙醚温度也跟着降低气压下降。
绳子与管壁摩擦产生热量做工温度升高,导致乙醚受热而膨胀气压增高。
金属管动摇而把橡皮塞弹起
橡皮塞因弹性形变而弹起
6.
FILL IN THE BLANK QUESTION
1 min • 5 pts
这是冰岛史托克间歇泉,当泉水喷出的时候,热能转化为_____能。
7.
MULTIPLE SELECT QUESTION
1 min • 5 pts
以下哪项关于能量是正确的?(有超过一个答案)
各形各式能量不能被孤立
能量之间会相互转化
能量不能被摧毁或破坏
能量可被产生
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