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資源分類
理化-國中7-9年級(四)
過濾條件

搜尋相關的資源 829
黑杯子裡的熱飲更快冷掉? 顏色會偷偷影響溫度?│《科科學會了》把課本的「熱輻射」變有趣!-資源代表圖
熱輻射是什麼?熱除了會透過傳導、對流的方式從高溫處傳播到低溫處,也可以不需要接觸或介質,直接以「電磁波」形式從物體表面向外釋放,這種方式就稱為「熱輻射」,而這些電磁波主要集中在紅外線波段。熱輻射的傳遞方式與光相似,當物體溫度高於環境時,會以紅外線的形式將熱輻射出去;物體溫度低於環境時,會得到環境以紅外線的形式給的輻射熱。舉例來說,當你站在火爐或電暖器前,即使沒有碰到它,也會感到高溫物體透過熱輻射將熱傳到你身上,使你感到溫暖。熱輻射的吸收/ 放出效率會受到物體表面的顏色與材質影響,能力比較如下:顏色與材質:深色霧面 > 深色亮面 > 淺色霧面 > 淺色亮面黑色粗糙霧面物體: 吸收與放出輻射熱的能力最強銀白色光滑亮面物體: 最會反射輻射熱,吸收與放出能力最弱
觀看次數14
修改日期:2025-12-29
2025單元課程示例-國中自然-002-資源代表圖
web 2025單元課程示例-國中自然-002
黃唯芯/新竹縣立自強國民中學國中8年級
運用「因材網 e度AI工具、Google Sheets」導入「探究式教學、建模教學法」,學習「化學反應速率及影響因素、微觀碰撞理論」。
點閱數30
下載數1
修改日期:2025-12-29
ios
時間倒數-資源代表圖
app 時間倒數
洪琮欽/台南市網路中心國小1-4年級,國小6年級~國中9年級
Digital sand timer with artistic design. Time flows and does it stylishly. This digitized hourglass can be used to time anything for up to 60 minutes. It's like having a nice looking visual indicator of how much time is left on your task.* KIDS FRIENDLYTimer visualizes time to kids and lets them feel the time. Without reading or even knowing the numbers one can look at the visualized time flow, feel it and understand how long to wait or whether to hurry up.* STAY NOTIFIEDIt lets you set the alarm sound that will play when the timer is finished. You can choose from 16 unique alarm sounds, melodies and loops. You’ll be notified when your time is up even if you’re using another app or your device is locked. It can also repeat the sound alarm (up to 3 times) at the given interval if it was missed/snoozed.* COLOR YOUR TIMEYou can easily change the timer color to fit your personal lifestyle. There are 5 color themes: turquoise, red, green, amber and pink. Just pick the one you like in the application settings.* UNIVERSAL APPTimer works both on your iPhone/iPod and iPad, contains HD graphics for retina and iPad displays and supports all screen orientations for all devices. [+Retina graphics for iPad 3rd generation]* SEE ALSO: Best TimerBeautifully designed sand timer, stylish kitchen timer, countdown/up and powerful stopwatch All in one creatively combined Best Timer application to suit all your timing needs. Search "Best Timer" on iTunes (http://itunes.apple.com/app/best-timer/id415656570) 洪琮欽 時間倒數 Digital sand timer with artistic design. Time flows and does it stylishly. This digitized hourglass can be used to time anything for up to 60 minutes. It's like having a nice looking visual indicator of how much time is left on your task.* KIDS FRIENDLYTimer visualizes time to kids and lets them feel the time. Without reading or even knowing the numbers one can look at the visualized time flow, feel it and understand how long to wait or whether to hurry up.* STAY NOTIFIEDIt lets you set the alarm sound that will play when the timer is finished. You can choose from 16 unique alarm sounds, melodies and loops. You’ll be notified when your time is up even if you’re using another app or your device is locked. It can also repeat the sound alarm (up to 3 times) at the given interval if it was missed/snoozed.* COLOR YOUR TIMEYou can easily change the timer color to fit your personal lifestyle. There are 5 color themes: turquoise, red, green, amber and pink. Just pick the one you like in the application settings.* UNIVERSAL APPTimer works both on your iPhone/iPod and iPad, contains HD graphics for retina and iPad displays and supports all screen orientations for all devices. [+Retina graphics for iPad 3rd generation]* SEE ALSO: Best TimerBeautifully designed sand timer, stylish kitchen timer, countdown/up and powerful stopwatch All in one creatively combined Best Timer application to suit all your timing needs. Search "Best Timer" on iTunes (http://itunes.apple.com/app/best-timer/id415656570)
點閱數1660
下載數6
修改日期:2025-12-23
聲音與多變的聲音統合-資源代表圖
web 聲音與多變的聲音統合
黃一軒/市立平鎮國中國中8年級
從日常生活經驗中找出問題,使用生活週遭的物品,進行探究活動以瞭解原理。
點閱數34
下載數0
修改日期:2025-12-19
Ab-Ⅳ-1-02-資源代表圖
video Ab-Ⅳ-1-02
教育部/教育部國中8-9年級
物質發生變化時,沒有新的物質產生
觀看次數21
修改日期:2025-12-18
Aa-Ⅳ-3-4-資源代表圖
video Aa-Ⅳ-3-4
教育部/教育部國中8-9年級
卜利士力、卡文迪西、拉瓦節對氧元素的相關研究
觀看次數25
修改日期:2025-12-18
Aa-Ⅳ-4-3-資源代表圖
video Aa-Ⅳ-4-3
教育部/教育部國中8-9年級
質量數=質子數+中子數。週期表上的原子量是平均原子量
觀看次數25
修改日期:2025-12-18
Aa-Ⅳ-3-2-資源代表圖
video Aa-Ⅳ-3-2
教育部/教育部國中8-9年級
西方煉金術的歷史
觀看次數35
修改日期:2025-12-18
Ab-Ⅳ-1-03-資源代表圖
video Ab-Ⅳ-1-03
教育部/教育部國中8-9年級
從粒子模型探討物質三態
觀看次數29
修改日期:2025-12-18
Aa-Ⅳ-4-5-資源代表圖
video Aa-Ⅳ-4-5
教育部/教育部國中8-9年級
同族元素最外圍電子組態相同。相同的電子組態有相似的化學性質
觀看次數23
修改日期:2025-12-18