The diagram shows movement of thermal energy.
in which areas of the diagram does conduction occur?

a: w and x
b: x and z
c: y and z
d: z and w

B. X and Z

Explanation:

There are three modes by which heat can be transferred. Heat always transfers from hotter object to colder object.

Conduction occurs when there is contact between hotter body and colder body. The molecules vibrate at their position and transfer heat to the neighboring molecules. In the diagram conduction takes place at X and Z. The heat transfers from pan to handle at X and then from handle to hand at Z.

Convection occurs in fluid. Bulk motion of fluid carries energy. Like in area W in the diagram.

Radiation does not require medium to transfer energy. Like in area Y marked in the diagram.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2