Understand Thermal Energy Transfer

Front

Why are oil storage tanks painted white?

Back

Poor absorbers of radiation

Front

Convection of heat

Back

only happens in fluids

Front

Which of the following is the poorest conductor of heat? air, copper, glass, water

Back

air

Front

On a hot day, a drink in a bottle can be kept cool by standing it in a bowl of water and placing a wet cloth over it. How is the drink kept cool?

Back

Water evaporating from the cloth cools the drink.

Front

Ice cubes are used to cool a drink. What is the main process by which the liquid at the bottom of the glass cools?

Back

convection

Front

Why does the ice take a long time to melt, even when the water at the top of the test-tube is boiling?

Back

Water is a poor conductor of heat.

Front

Why do animals in cold countries grow thicker layers of fur in winter?

Back

It traps more air, which is a poor conductor of heat.

Front

The diagram shows a plate-warmer in which candles are used as heaters. The flames of the candles do not touch the underside of the top tray. How does heat pass to the top tray?

Back

mainly convection and some radiation

Front

Which object loses all of its heat by radiation?

Back

a white space shuttle at 20 degrees Celsius, in space