Lesson 4: Heat Transfer Answers
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1
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The diagram shows an example of convection.
A
Warmer water sinksB
Warmer water risesC
Cooler water sinksD
Cooler water rises2
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Which best describes a wave?
A
a collision of particlesB
a disturbance that carries energyC
a movement of fluidsD
a group of electrically charged molecules3
Alex studied the image shown.He concluded that the image shows thermal energy being transferred from the flames to the person’s hands through conduction.
A
Thermal energy is being transferred from the person’s hands to the flames.B
The image does not show thermal energy being transferred because the molecules of two substances or objects are not in direct contact.C
The image does not show conduction because the molecules of two substances or objects are not in direct contact.D
Thermal energy is being transferred from the surrounding air to the flames.4
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.5
fluidswaveselectricitycharges
A
fluidsB
wavesC
electricityD
charges6
What are three properties of electromagnetic waves?
A
They travel slower than the speed of light, they include visible light waves, and they can transfer energy through empty space.B
They need matter through which to travel, they travel at the speed of light, and they include visible light waves.C
They travel at the speed of light, they include ultraviolet waves, and they can transfer energy through empty space.D
They include ultraviolet waves, they need matter through which to travel, and they travel slower than the speed of light.7
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.
9
transferredchangedcreatedmeasured
A
transferredB
changedC
createdD
measured10
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.Did you find these answers helpful?
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