Heat Transfer Understanding Flashcard

Front

If you put a metal spoon in something hot and the handle gets warm, what will happen if you use a wooden spoon?

Back

The wooden spoon handle will stay cooler longer than the metal spoon

Front

Why does a hot air balloon rise?

Back

Hot air is less dense than cold air

Front

A student feels warmth near a hot stove. What type of heat transfer is this?

Back

Radiation, because heat travels without matter

Front

Which situation causes the strongest convection current?

Back

Large temperature difference

Front

Which mug keeps hot chocolate warm the longest, and why?

Back

A thick ceramic mug because it conducts heat slowly

Front

Why do you feel colder after leaving a pool on a windy day?

Back

Wind removes heat from your wet skin faster

Front

Why does ice melt faster in a metal bowl than in a plastic bowl?

Back

Metal conducts heat to the ice better than plastic.

Front

Which example shows all three types of heat transfer? Options: Ice melting in a glass, A campfire warming people, An electric blanket warming a bed, A microwave heating food

Back

A campfire warming people

Front

Why are fins added to motorcycle engines and computer processors?

Back

To increase surface area for better heat transfer

Front

Where would you find the highest temperature in a heated room and why?

Back

Near the ceiling, because hot air rises