大有國中-熱的傳播方式

Multiple Choice

A person holds a glass beaker in one hand and fills it quickly with hot water. It takes several seconds before his hand starts to feel the heat. Why is there this delay? 

• Glass is a poor conductor of heat. 
• Glass is a good conductor of heat. 
• Water is a poor conductor of heat.
• Water is a good conductor of heat. 

Multiple Choice

鍋子常用金屬材質，但把手使用___材質避免燙手。

• 塑膠

• 木頭

• 金屬

• 玻璃

Multiple Choice

What is the effect of air on heat conduction according to the image?

• It improves heat conduction

• It has no effect on heat conduction

• It decreases heat conduction

• It enhances heat conduction in glass

Multiple Choice

Two fluids, one warm and one cold, mix. The warm fluid rises and the cool fluid sinks

• Conduction

• Convection

• Radiation

Fill in the Blanks

Transfer of heat of liquids or gas from hot to cold.

Multiple Choice

You are in the top bunk of a bunk bed and you want to turn the air conditioner on while your friend on the bottom bunk is fine is caused by

• Convection

• Conduction

• Radiation

Multiple Choice

Why should ice cubes be placed in the urinal?

• To keep the urinal clean

• To reduce odor

• To make it look nice

• To save water

Multiple Select

What materials are used in the construction of the candle holder in the third image?

• Plastic

• Metal

• Glass

• Wood

Open Ended

Describe how the design of the candle holder in the second image contributes to its functionality.

Multiple Choice

What is the purpose of the candle in the first image?

• Decoration

• Lighting

• Scented aroma

• Celebration

Multiple Choice

What is convection of heat?

• Transfer of heat through solid objects

• Transfer of heat through electromagnetic waves

• Transfer of heat through chemical reactions

• Transfer of heat through the movement of fluids

Multiple Choice

Describe an instance of convection of heat.

• When hot air stays in one place and cold air moves

• When hot air rises and cold air sinks

• When hot air sinks and cold air rises

• When hot air turns into cold air and vice versa

Open Ended

物質的輻射能力差異，深色粗糙的物體比較容易吸收及發出輻射。淺色光滑的物體較不易吸收及發出輻射。

Multiple Choice

In the image, what can be inferred about the heat absorption of the black fabric compared to the white fabric?

• The black fabric absorbs more heat

• The white fabric absorbs more heat

• Both fabrics absorb the same amount of heat

• Neither fabric absorbs heat

Fill in the Blanks

Clothes of

colours absorb heat better than clothes of light colours.

Multiple Choice

Which color absorbs heat the most?

• white
• yellow
• blue
• black

Multiple Choice

What color are the solar panels primarily designed to be in order to enhance heat absorption?

• Light Blue

• Dark Green

• Deep Color

• Bright Yellow

Multiple Choice

What color should the surface of the oil tank and oil tanker be painted to avoid heat absorption?

• Red

• Blue

• Green

• White

Multiple Choice

在課本p.142的圖5-18中，哪一支溫度計的溫度下降較快？

• 黑色布料

• 白色布料

• 兩者相同

• 無法判斷

Open Ended

請問你的看法如何？並說明為什麼？

Multiple Choice

保溫瓶的結構如下圖，請問塑膠瓶蓋、真空來層和內層淺色鏡面，可以分別阻隔哪一類的熱傳播？

• 對流

• 輻射

• 傳導

• 對流和輻射

Multiple Choice

What is the process demonstrated in the images for the "Tea Bag Lantern" experiment?

• Cutting the tea bag

• Opening the tea bag

• Lighting the tea bag

• All of the above

Fill in the Blanks

Convection, conduction or radiation?

Smoke rising in a room due to a fire

Multiple Choice

What is the relationship between the length of the tea bag and the maximum height of the ash when heated?

• The longer the tea bag, the higher the ash rises

• The length of the tea bag has no effect on the ash height

• The shorter the tea bag, the higher the ash rises

• The height of the ash is directly proportional to the length of the tea bag

Poll

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• 有點自信
• 不自信