Pada pembahasan kali ini, saya akan meminta anda mengelompokkan kondisi yang dideskripsikan menjadi tiga kelompok perpindahan panas, Konveksi, Konduksi, dan Radiasi melalui pewarnaan. Pengelompokan dilakukan dengan mewarnai kondisi konveksi sebagai warna kuning, konduksi bewarna orange, dan radiasi berwarna merah. Kegiatan ini dilakukan untuk menguji seberapa jauh pemahaman dasar dari masing-masing peserta kelas.
Read each statement and determine if the phrase is describing heat transfer by convection, radiation, or conduction. Highligh the convection examples yellow, the conduction example orange, and the radiation example red.
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| Fig.1 Convection Oven (1) |
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| Fig. 2. A women holding a hot water bottle to keep her body warm. |
Boiling water, the cold water starts to sink and the warm water rises.
Holding a hot water bottle to keep you warm
Touching a metal spoon that has been in boiling water.
Heating a pot on the stone.
Standing in the sun to keep you warm.
Hot chocolate, the heat of the liquid makes the warm air rise.
A radiant bathroom heat lamp.
Using an electric blanket to get warm.
Holding a hot cup of tea to warm your hands.
Warm air rising in a hot air balloon.
Convection oven.
The ocean currents.
Transfer of heat through currents in liquids and gases.
Warming hands by placing them near of fire.
Transfer of heat through infrared rays.
Standing near a light bulb that had been on for a long time.
Heat moves from warmer to colder areas in solid objects.
The sand on the beach getting hot on a sunny day.
Here, the answers :
Convection (yellow)
- Warm air rising in a hot air balloon.
- Convection oven.
- Boiling water, the cold starts to sink and the warm water rises.
- Hot chocolate, the heat of the liquid makes the warm air rise.
- The ocean currents.
- Transfer of heat through infrared rays.
Conduction (Orange)
- Heating a pot on the stone.
- Using an electric blanket to get warm.
- Holding a hot cup of tea to warm your hands.
- Touching a metal spoon that has been in boiling water.
- Holding a hot water bottle to keep you warm.
- Heat moves from warmer to colder areas in solid objects.
Radiation (Red)
- Warming hands by placing them near of fire.
- Standing near a light bulb that had been on for a long time.
- A radiant bathroom heat lamp.
- The sand on the beach getting hot on a sunny day.
- Standing near a light bulb that had been on for a long time.
- Transfer of heat through infrared rays.
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