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Question 1 of 7
You're stirring a pot of soup with a metal spoon. After a few minutes, the handle gets hot. How did the heat travel up the spoon?
A
The metal expanded and created friction that generated heat
B
Conduction — vibrating molecules at the hot end passed energy along to neighboring molecules up the handle
C
Radiation — the soup emitted infrared waves that heated the metal
D
Convection — hot air from the soup rose up and heated the handle