第八课:热Heat
rè yǔwēndù
· 热与温 度(Heat and temperture)
rè duì wùzhì de yǐngxiǎng
· 热对 物质 的 影 响(Effects of heat on matter)
wēndù wùzhìshòurè hòuwēndù shàngshēng wùzhìsanrè hòuwēndù xiàjiàng
[1]温 度:(A)物质 受热后 温度 上升。 物质 散热后 温度下降。(When matter is heated temperature rises, when cooled temperature drops)
cè liangwēndù cèliangyí qì wēndùjì biāozhǔndānwèi shèshìdù
[2]测量 温度:(A)测量仪器:温度计(thermometer) (B)标准单位:摄氏度(’C)(Standard unit for temperature is degree Celcius)
rè duìwùzhìde yǐngxiǎng
[3]热对物质的 影响(Effects of heat on matter):
wùzhìshòurè péngzhàngwùzhì yùlěngshōusuō
(A)物质受热 膨胀。物质遇冷 收缩。(When matter is heated, it expands; when cooled, it contracts)
rèzhànglěngsuō yuánlǐ zàishēnghuózhōngde yingyòng
(B)热胀冷缩 原理在生 活中 的应用:
"受热膨胀,遇冷收缩"
huǒchētiěguǐzhī jiānliú yǒudekōngxì
· 火车铁轨之间 留有 的空隙(gaps in railway tracks)
diànxiàngānshàngsōngchí de diànxiàn
· 电线 杆上 松弛的 电线(more sagging during hot day)
wēndùjì lǐ yètǐ de shēngyǔjiàng
温度计 里液体的 升与降(Liquid in a thermometer rises and falls)
Metal expands when heated.
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Reference:
[.] 铁腕遇热膨胀:
Metal expands when heated.
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[.] What is temperature?
原来“热”这单元时很有趣又容易!
ReplyDelete谢谢分享。 加油。
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ReplyDeleteSimplifying the learning method also find http://www.kidsfront.com/academics/class/11th-class.html
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