
五年级科学-热(ii)
Authored by TEH Moe
Science
2nd - 3rd Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1)什么是温度?
a)物质的冷热程度
b)存在于物质里的热能
c)物质吸收热能的最高极限
d)用于测量物质的热能的标准单位
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2)上图显示一支水银温度计。
a
b
c
d
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3)上图显示一项实验。小丽把三支匙子同时放入沸水里。5分钟后,小丽触摸匙把。哪项显示小丽的实验结果?
a)木匙最热
b)钢匙最冷
c)钢匙比木匙和塑料匙热
d)塑料匙比钢匙热,但比木匙冷
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4)上图显示伟健把一个被加热了25分钟的铁球放进一杯自来水里。铁球放进自来水后,自来水的温度会有什么变化?
a)水温上升
b)水温下降
c)水温下降后上升
d)水温持续下降至室温
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
5)明辉把一个空铝罐放在阳光下。一个小时后,明辉用手触摸空铝罐。明辉感觉到什么?为什么?
a)冷,因为空铝罐不会吸热
b)冷,因为空铝罐散失热能
c)热,因为空铝罐产生热能
d)热,因为空铝罐吸收了热能
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
6)上图显示在不同温度下的两支温度计。为什么温度计里的酒精会上下移动?
P-酒精被太阳的引力吸引而上升
Q-酒精因地心引力而往下移
R-酒精受热膨胀而上升
S-酒精遇冷收缩而下降
a) P 和 Q
b) P 和 S
c) Q 和 R
d) R 和 S
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7)上图显示一组学生进行的实验。5分钟后,红色水滴往下移动。为什么?
a) 烧瓶遇冷收缩
b) 红色水滴遇冷收缩
c)周围的空气受热后膨胀
d)烧瓶内的空气遇冷后收缩
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