Occurs when objects are heated
Study guide Temperature and Kinetic Energy

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Science
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8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Thermal expansion is the increase in volume of a substance due to an increase in temperature.
2.
FLASHCARD QUESTION
Front
The temperature scale commonly used by scientists is ______.
Back
Kelvin is the temperature scale used by scientists, where absolute zero is 0 K.
3.
FLASHCARD QUESTION
Front
Occurs when objects are cooled
Back
Thermal contraction is the decrease in volume of a substance due to a decrease in temperature.
4.
FLASHCARD QUESTION
Front
At this temperature scale, water boils at 373 degrees and freezes at 273 degrees.
Back
Kelvin is the temperature scale where water boils at 373 K and freezes at 273 K.
5.
FLASHCARD QUESTION
Front
The temperature at which there is very little or no molecular motion.
Back
Absolute zero is the theoretical temperature at which a system's entropy reaches its minimum value, and molecular motion stops.
6.
FLASHCARD QUESTION
Front
What is the relationship between temperature and kinetic energy?
Back
As temperature increases, the kinetic energy of the molecules in a substance also increases.
7.
FLASHCARD QUESTION
Front
What happens to the volume of a gas when it is heated?
Back
The volume of a gas generally increases when it is heated, due to thermal expansion.
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