What is convection current?
Grade 6- Topic 4/Thermal Energy

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Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The circular motion of a cold fluid sinking and a hot fluid rising, which transfers thermal energy.
2.
FLASHCARD QUESTION
Front
What is heat?
Back
Heat is the energy that flows from something warmer to something cooler.
3.
FLASHCARD QUESTION
Front
How does cooking food on a grill affect its temperature?
Back
The kinetic energy of the food particles increases, causing the food temperature to rise.
4.
FLASHCARD QUESTION
Front
What is conduction?
Back
Conduction is the transfer of heat through direct contact between materials.
5.
FLASHCARD QUESTION
Front
What is specific heat?
Back
Specific heat is the amount of heat required to raise the temperature of 1 kg of a substance by 1 K.
6.
FLASHCARD QUESTION
Front
Which material has a higher specific heat: iron or plastic?
Back
Plastic has a higher specific heat (2302 J/(kg•K)) than iron (450 J/(kg•K)).
7.
FLASHCARD QUESTION
Front
What happens to the kinetic energy of particles when they are heated?
Back
The kinetic energy of the particles increases.
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