Thermal Energy

QuizÂ by Gary Hartle

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18 questions
• Q1
Contact is required for this type of heat transfer to take place.
Convection
Insulation
Conduction
30s
• Q2
_______________ is heat transfer by thermal currents in a liquid or gas.
Insulation
Conduction
Convection
30s
• Q3
Waves of energy that transfer heat through space.
Insulation
Convection
Conduction
30s
• Q4
When you pick up an iron skillet off of the stove and it feels very hot, you have just experienced...
conduction
evaporation
convection
30s
• Q5
Heat is _____________ energy.
nuclear
thermal
free
potential
30s
• Q6
As a substance is heated up, it becomes ___________ dense, and _____________.
more, rises
less, rises
more, sinks
less, sinks
30s
• Q7
The red and blue arrows represent...
thermal currents.
things floating in the water.
whirlpools.
30s
• Q8
Heat is the amount of _____________ energy that the molecules in an object or substance have.
kinetic
30s
• Q9
Heat always moves from areas that are ________ to areas that are __________.
hot, cold
left, right
cold, hot
30s
• Q10
Part B is a hot liquid and Part A is a cold one. When the valve is opened, heat will...
travel from Part B to Part A.
travel Part A to Part B.
not move.
30s
• Q11
You take a can of soda out of the refrigerator and set it on the counter. 24 hours later the soda will be...
frozen.
colder than room temperature.
room temperature.
warmer than room temperature.
30s
• Q12
When these two objects touch, the heat will travel from the hotter object...
until both objects reach the same temperature.
forever.
until it is 10 degrees colder.
30s
• Q13
Using the data table, which best explains the flow of thermal energy from the swimming pool water to the surrounding air?
Cold energy from the air transferred to the water.
the heat from the water transferred to the air until both were the same temperature.
Cold energy from the water transferred to the air.
the heat from the air transferred into the water until both were the same temperature.
30s
• Q14
In our heat transfer lab, the plastic bag lifted up off the toaster and floated to the ceiling. Why?
Convection. The contact between the toaster and the table made it happen.
Convection. The heat from the toaster made the air in the bag more dense, so it began to float up.
Radiation. The waves of energy from the toaster hit the bag and made it less dense.
Convection. The heat from the toaster made the air in the bag less dense, so it began to float up.
30s
• Q15
A good ______________ allows heat to pass into it easily.
insulator
amplifier
conductor
30s

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