Convection — Quiz

Question 1

Which best describes what is happening in the diagram?

Revolt · Accepted Answer

At point 4, thermal energy from warm air over the land is transferred upward toward cooler areas of the atmosphere.

Question 2

How do the molecules at point A compare to the molecules at point B?

Revolt · Accepted Answer

They are farther apart.

Question 3

Which is required for convection to occur?

Revolt · Accepted Answer

a heat source

Question 4

When Xavier places his hands near a light bulb, he notices that certain areas around the light bulb are warmer than others. Which best explains this?

Revolt · Accepted Answer

The area directly above the light bulb is warmest because of convection.

Question 5

Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup out, the handle is very warm. Steam rises from the cup, so she blows it before taking a sip. In which part of this scenario can convection be best observed?

Revolt · Accepted Answer

rising steam from the cup of cocoa

Question 6

Which best describes the shape of a convection current?

Revolt · Accepted Answer

circular

Question 7

Which best describes the convection currents in Earth’s mantle?

Revolt · Accepted Answer

They transfer thermal energy away from Earth’s core toward its crust.

Question 8

Which area of Earth is most similar to the sun’s convection zone?

Revolt · Accepted Answer

the equator; the mantle

Question 9

Where could convection currents form?

Revolt · Accepted Answer

in the atmosphere

Question 10

In a convection current, as the temperature of a fluid increases, what property of the fluid decreases?

Revolt · Accepted Answer

density

Convection — Quiz Answers

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