Convection

Question 1

How is thermal energy transferred during convection?

Revolt · Accepted Answer

by movement in fluids

Question 2

The kinetic energy of the molecules [___].

Revolt · Accepted Answer

increases; The kinetic energy of the molecules .: increases; The speed of the molecules .: increases; The density of the fluid .: decreases; The fluid .: rises

Question 3

✔ increasesdecreasesstays the same

Revolt · Accepted Answer

increases

Question 4

increases✔ decreasesstays the same

Revolt · Accepted Answer

decreases

Question 5

Use the drop-down menus to identify each labeled part of the diagram. Label A: Label B: Label C:

Revolt · Accepted Answer

Cool fluid sinks; Selection 1: Cool fluid sinks; Selection 2: Warm fluid rises; Selection 3: Convection current

Question 6

✔ Warm fluid risesWarm fluid sinksCool fluid rises Cool fluid sinks

Revolt · Accepted Answer

Warm fluid rises

Question 7

Conduction current✔ Convection currentMagma currentCrust current

Revolt · Accepted Answer

Convection current

Question 8

In a lava lamp, a waxy substance rises and falls repeatedly. What causes the waxy substance to rise? Check all that apply.

Revolt · Accepted Answer

The waxy substance is warm.; The waxy substance is less dense than the surrounding liquid.; Convection is occurring.

Question 9

What happens at night?

Revolt · Accepted Answer

Cool air over the land moves offshore.

Question 10

Which statements best describe convection? Check all that apply.

Revolt · Accepted Answer

Convection occurs in liquids and gases.; Convection transfers thermal energy.; Convection occurs until all of the fluid is at the same temperature.

Convection Answers

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