Heat Transfer Answers
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The diagram shows the movement of magma due to convection currents.
A
the crustB
the mantleC
the outer coreD
the inner core3
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Which condition must exist in order for conduction to occur between two substances?
A
The molecules of the substances must be touching.B
Both substances must be the same temperature.C
At least one substance must be a liquid.D
Most of the molecules must be slow moving.4
Which is an example of convection?
A
In a mountain forest, the sun heats up the ground.B
On a hot day, Amaya pours water on her face to cool off.C
At the beach, Stephan’s feet get hot walking across the sand.D
Above the sea, warm air rises, cools, and sinks.5
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A
fluidsB
wavesC
electricityD
charges6
Which is an example of radiation?
A
An ice pack is placed on a knee, and the knee cools down.B
A rock is warmed by an ultraviolet heat lamp.C
Hot coffee in a mug causes the mug to warm up.D
Cold salt water sinks to the bottom of the ocean.7
Thermal energy from the Sun travels to Earth by
A
conduction.B
charged molecules.C
electromagnetic waves.D
convection currents.8
The diagram shows a pot sitting on a gas stove burner.
A
stove burner pan bottom of pan handle top of pan handle
B
top of pan handle bottom of pan handle pan stove burnerC
pan stove burner bottom of pan handle top of pan handleD
top of pan handle bottom of pan handle stove burner pan9
Which two conditions must exist in order for radiation to occur?
A
the presence of a solid, liquid, or gas and a temperature differenceB
direct contact of molecules and the presence of a solid, liquid, or gasC
the presence of electromagnetic waves and direct contact of moleculesD
a temperature difference and the presence of electromagnetic waves10
Substance X is placed in a container with substance Y. Both substances are fluids. Substance X initially sinks to the bottom of the container. After five minutes of being heated on a hot plate, substance X becomes less dense than substance Y.
A
Substance X will rise due to convection.B
Substance Y will rise due to convection.C
Substance X will rise due to radiation.D
Substance Y will rise due to radiation.Did you find these answers helpful?
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