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Science Chapter 9

chapter 9 of physical science notes

QuestionAnswer
Add the potential energies (PE) and the kinetic energies (KE) to get what? Total internal energy (TE) of matter.
What is thermal energy? Thermal energy is part of a system that is the sum of all the kinetic energies of its particles.
How can thermal energy only be measured? As it is transferred from one system to another.
What is transferring particle kinetic energy, the motion, called? It is called heating or cooling.
A loss of thermal energy is usually accompanied by what? Falling temperatures
A gain of thermal energy is usually accompanied by what? Rising temperatures
Temperature is measured in degrees by what? A thermometer
What is viscosity? The measure of the resistance of liquids to flow.
What is heat? The quantity of thermal energy that flows from one place to the other.
What is conduction? When two objects of different temperatures touch, thermal energy moves from the hotter object to the cooler one.
What is convection? Thermal energy carried from one location to another by a fluid.
What are insulators? Materials that resist the flow of thermal energy.
What is heat capacity? The relationship between the amount of thermal energy absorbed and the temperature change caused by this.
What is the latent heat of fusion? The amount of thermal energy exchanged per gram of material during melting or freezing.
What is the latent heat of vaporization? The amount of heat it takes to change the liquid to a gas.
Created by: Driggers.Nathan