Unit Test — Unit test Answers
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Conduction can occur within a single substance, but parts of the substance must have which property?
A
different temperaturesB
different texturesC
different particle sizesD
different colors22
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Which best explains how thermal energy is transferred when someone holds a hand above a fire?
A
It is transferred by conduction and radiation.B
It is transferred by only convection.C
It is transferred by only conduction.D
It is transferred by radiation and convection.23
A farmer places unhatched chicken eggs under a heat lamp. How does the radiation help the eggs?
A
It keeps the area around the eggs cool until the eggs hatch.B
It makes the eggs weaker so they are easier to break open.C
It makes the eggs stronger so they do not break.D
It keeps the eggs warm until they hatch.24
The lava lamp has a light bulb as a heat source at its base. The lamp contains a colored, waxy fluid that can be observed moving in clumps through a clear liquid.
A
densityB
temperatureC
kinetic energy of its moleculesD
space between its molecules25
Juan measured the temperature of salt water. He then added 273 temperature units to the measured temperature value. Which temperature conversion is Juan most likely doing?
A
degrees Celsius to degrees FahrenheitB
degrees Celsius to kelvinsC
kelvins to degrees CelsiusD
degrees Fahrenheit to degrees CelsiusDid you find these answers helpful?
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