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Mr. Allen being dumb again
Knowing more things about physics that were never taught
29
Physics
12th Grade
02/03/2014

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Term
Industrial revolution
Definition
Revolution that started in 18th century, with the invention of the steam engine.
Term
Steam Engines
Definition
Used to power trains, factories and water pumps for coal mines
Term
Thermodynamics
Definition
Heat transformations and motion of atoms
Term
Engineers
Definition
use law of thermodynamics to develop new inventions, like engines, refrigerators, and other machines.
Term
Conduction
Definition
the transfer of kinetic energy when particles collide
Term
Thermal Equilibrium
Definition
the state in which the rate of energy flow between two objects is equal and the objects are at the same temperature.
Term
Heat
Definition
Energy transferred between two objects in contact with one another and always flows from the hotter object to the cooler object.
Term
Convection
Definition
A type of thermal energy transfer that occurs from the motion of fluid in liquid or gas that is caused by differences in temperature.
Term
Radiation
Definition
The thermal transfer of energy by electromagnetic waves through the vacuum of space.
Term
Specific Heat
Definition
The amount of energy that must be added to a material to raise the temperature of a unit mass by one temperature unit; is measured in J/kg*K
Term
Heat of fusion
Definition
The amount of heat required to change 1 kg of substance from a solid state to a liquid state at its melting point.
Term
Heat of Vaporization
Definition
The amount of heat required to change 1 kg of a substance from a liquid state to a gaseous state at its boiling point.
Term
First Law of Thermodynamics
Definition
States that the change in thermal energy of an object is equal to the heat that is added to the object, minus the work done by the object.
Term
Second Law of Thermodynamics
Definition
States that natural processes go in a direction that maintains or increases the total entropy of the universe.
Term
Heat Engine
Definition
A device that continuously converts thermal energy to mechanical energy; requires a high-temperature thermal energy source, a low-temperature receptacle (a sink), and a way to convert the thermal energy into work.
Term
Etymology of Seahawks
Definition
The name Seattle Seahawks ("Seahawk", another name for osprey) was selected on June 17, 1975 after a public naming contest which drew more than 20,000 entries and over 1,700 different names. The name "Seahawks" was submitted by 151 entrants, and Mary Hoolahan of Seattle, WA was selected the winner. The name originated from the Peninsula Highschool in Gig Harbor.
Term
Entropy
Definition
A measure of disorder in a system
Term
Equilibrium
Definition
The condition in which the net force on an object is zero
Term
Thermometer
Definition
A device that measures the temperature of an object.
Term
Temperature
Definition
the degree or intensity of heat present in a substance or object
Term
Celsius
Definition
a scale of temperature in which water freezes at 0° and boils at 100° under standard conditions.
Term
Kelvin
Definition
the SI base unit of thermodynamic temperature, equal in magnitude to the degree Celsius, and where zero is absolute zero, the coldest temperature possible.
Term
Calorometer
Definition
A device used to measure changes in thermal energy
Term
Heat Transfer
Definition
Q=mCΔT
Term
Melting Point
Definition
The point where a substance changes from a solid to a liquid.
Term
Boiling Point
Definition
The point where a substance changes from a liquid to a gas.
Term
Change of State
Definition
When the thermal energy of a substance changes, so that the the properties of it changes from a either gas, liquid, or solid, to another form.
Term
Refrigerator
Definition
Uses mechanical work to remove thermal energy from an object.
Term
Heat Pump
Definition
A refrigerator that can be run in two directions, both in and out. It always uses mechanical energy to transfer heat fro ma cold object to a warmer one.
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