Heat Transfer (Atmospheric Heating)

Flashcard
•
Other Sciences
•
6th - 8th Grade
•
Hard
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20 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of CONDUCTION?
Back
When heat transfers from objects that are touching.
Answer explanation
Conduction is defined as the transfer of heat through direct contact between objects. This occurs when two surfaces at different temperatures touch, allowing heat to flow from the hotter object to the cooler one.
2.
FLASHCARD QUESTION
Front
What kind of heat transfer happens when the sun is heating your body?
Back
Radiation
Answer explanation
The sun heats your body primarily through radiation, which is the transfer of heat in the form of electromagnetic waves. Unlike conduction and convection, radiation does not require a medium to transfer heat.
3.
FLASHCARD QUESTION
Front
What heat transfer happens when you burn your hand by touching a fire?
Back
Conduction
Answer explanation
When you touch fire, heat is transferred directly from the hot surface to your skin through conduction. This direct contact allows thermal energy to flow, causing a burn.
4.
FLASHCARD QUESTION
Front
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
Back
convection
Answer explanation
Warm air rises and cool air sinks is a characteristic of convection, where heat is transferred through the movement of fluids. Conduction involves direct contact, and radiation does not require a medium, making convection the correct choice.
5.
FLASHCARD QUESTION
Front
Ironing a shirt is an example of...
Back
conduction
Answer explanation
Ironing a shirt involves applying heat from the iron directly to the fabric, which transfers thermal energy through direct contact. This process is an example of conduction, where heat moves through materials.
6.
FLASHCARD QUESTION
Front
Warm air is __________ dense than cold air and rises creating convection currents.
Back
less
Answer explanation
Warm air is less dense than cold air, which causes it to rise. This difference in density leads to the formation of convection currents, making 'less' the correct choice.
7.
FLASHCARD QUESTION
Front
Johnny accidentally grabbed the handle of the hot pot.
Back
conduction
Answer explanation
Johnny experienced conduction when he grabbed the handle of the hot pot. Conduction is the transfer of heat through direct contact, which is why the hot handle felt hot to him.
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