
Convection, Conduction and Radiation
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is convection?
Back
Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a current.
2.
FLASHCARD QUESTION
Front
What is conduction?
Back
Conduction is the transfer of heat through direct contact between materials. Heat moves from the hotter object to the cooler one.
3.
FLASHCARD QUESTION
Front
What is radiation?
Back
Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium, so it can occur in a vacuum.
4.
FLASHCARD QUESTION
Front
How does heat transfer occur in a pot on a stove?
Back
Heat is transferred from the stove to the pot through conduction.
5.
FLASHCARD QUESTION
Front
What happens to air when it is heated?
Back
When air is heated, it becomes less dense and rises, creating convection currents.
6.
FLASHCARD QUESTION
Front
What is the direction of heat flow?
Back
Heat always flows from a hotter substance to a colder substance.
7.
FLASHCARD QUESTION
Front
What is an example of radiation?
Back
An example of radiation is the warmth felt from the sun on your skin.
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