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Tuesday, December 1, 2009

Convection

Convection is heat from a liquid or gas. If you take the lid off of a boiling pot and put your face over it, the heat from the steam will go into your face. Some other examples of convection are putting your leg into the swimming pool, feeling the warm breeze on a summer day, and sticking your hands out to the air vents to warm up on cold days.
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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