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Tuesday, December 1, 2009

Hot is Cold

In the world of heat, even the coldest objects have heat. Sometimes cold objects have more heat energy than warmer things. In such an instance, a -20 degrees Celsius iceberg had more heat energy than a 50 degrees Celsius cup of tea. This is because the iceberg has more mass that the cup of tea and more mass means more heat energy.
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Quiz

You can test your heat transfer knowledge by scrolling down and answering the questions. Try not to scroll up and look at the answers. That's cheating! Click 'Submit your answer' to submit your answer. A window will pop up and say if you got the right answer or not. Please look at our older posts too because one of our posts is there.

How many types of heat transfer are there?

A. 25
B. 3
C. 2
D. 4

Is radiation cold?

A. Yes
B. Maybe
C. No

What is an example of cold convection?

A. a cool breeze
B. Heat wave
C. cold plate

What heat transfer do you need sunscreen for?

A. Convection
B. Conduction
C. Balloon animals
D. Radiation

Can cold objects have heat energy?

A. No
B. Yes

Which of the following has more heat energy

A. An iceberg
B. Cup of tea
C. Both

What is an example of cold conduction?

A. Touching hot stove
B. Eating KFC
C. Touching an iceberg
D. The sun

What is an example of conduction?

A. steam
B. Touching hot stove
C. the sun