Thermal Energy Review

Multiple Choice

Click on the image to read the question.

• A

• B

• C

• D

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Open Ended

Click the image to read the question, then respond by typing your answer.

Drag and Drop

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Drag these tiles and drop them in the correct blank above

conduction

convection

radiation

Drag and Drop

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Placeholder

Drag these tiles and drop them in the correct blank above

conduction

radiation

convection

Drag and Drop

Placeholder

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Placeholder

Drag these tiles and drop them in the correct blank above

radiation

convection

conduction

Draw

The air tight seal and the thick metal wall of a thermos serve a similar purpose. What is the rational for adding these features to a thermos?

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Multiple Choice

The team is the considering four different materials to use as additional insulation between layers of insulating fabric. The materials and some important factors to consider are shown in the table below. The term R-value refers to the capacity of an insulating material to resist heat flow. The higher the value, the greater the insulating power. Based on the design criteria and constraints of price, select the option that ranks the materials from best to worst.

• Acoustic tiles, polystyrene, mohair wool, lux foam

• lux foam, mohair wool, Acoustic tiles, polystyrene

• polystyrene, Acoustic tiles, lux foam, mohair wool

• mohair wool, Acoustic tiles, lux foam, polystyrene

Draw

How does the heat transfer in each of the cups causing the change in temperature of the two cups? Remember the outside temperature is 30 degrees Celcius no wind blowing.

Multiple Choice

Click on the image to reread the question.

• put the bottle near the front

• put the bottle near the back

• either; the rate of thermal energy transfer is the same whether the bottle is in the front or the back

Draw

Which has the most thermal energy?

Hotspot

Which has a high specific heat? The ocean or the sand?

Multiple Choice

Is the example of the house lifted by balloons in the image an example of thermal expansion or thermal contraction?

• Thermal expansion

• Thermal contraction

• Neither

• Both