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Earth Science - Ch. 9 Flashcards
Thermal Energy and States of Matter
12
Science
9th Grade
10/27/2011

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Term
kinetic theory
Definition
All matter is made of constantly moving particles that collide without losing energy.
Term
temperature
Definition
Measure of the average kinetic energy of all the particles in an object.
Term
Kelvin
Definition
The SI unit for temperature.
Term
thermal energy
Definition
Sum of the kinetic and potential energy of the particles in an object.
Term
heat
Definition
Thermal energy that flows from a warmer material to a cooler material.
Term
plasma
Definition
Matter consisting of positively and negatively charged particles.
Term
conduction
Definition
Transfer of thermal energy by collisions between particles in matter at a higher temperature and particles in matter at a lower temperature.
Term
convection
Definition
Transfer of thermal energy in a fluid from one place to another.
Term
radiation
Definition
Transfer of thermal energy by electromagnetic waves.
Term
conductor
Definition
Material that allows heat and electricity to pass through it.
Term
insulator
Definition
Material that does not allow heat and electricity to pass through it.
Term
entropy
Definition
A measure of how spread out, or dispersed energy is.
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