Unit 6 Thermal Energy Study Guide

Things are made of ________ ( or other types of _____ _____)

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NGSS.MS-PS1-1

When a thing gets _______ , its molecules are moving ______ and have more ______ ______

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a thing gets ______ , its molecules are moving ______ and have less ______ ______

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is temperature?

• A measure of the average kinetic energy of the molecules of a thing

• The measure of how hot or cold an object is

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

When two things are in contact, their molecules ______, and ______ ______ transfers form the faster-moving molecules to the slower-moving molecules

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

The molecules of a system will transfer energy until the system reaches a stable state known as _________, in which all molecules are moving at about the same speed

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NGSS.MS-PS1-4

For things at the same temperature, the thing with more molecules has more total kinetic energy has more total kinetic energy (______) than the thing with the thing with fewer molecules

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

At ______, the average kinetic energy (______) of the molecules in the system is the total kinetic energy (thermal energy) evenly ______ by the number of molecules in the system

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

When a thing ______ or ______ energy, the energy ______ or ______ is divided among all the molecules of the thing

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy isn't ______ or ______. Therefore as energy transfers, it ______ in one part of the system as it ______ in another part of the system. The total energy of a system does not change.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5