Physics Chapter 21-22 Vocab
Vocab for Dean Knight's CP physics class
Terms
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- Absolute Zero
- The temperature at which a substance has no kinetic energy to give up. 0 K
- Celsius Scale
- A temperature scale in which the number number 0 is assigned to temperature at which water freezes, and the number 100 is assigned to the temperature at which water boils
- Fahrenheit Scale
- The Temp scale commonly used in U.S. 32 corresponds to water freezing; 212 to boiling point of water
- Kelvin
- SI unit of temperature; indicates number of units above absolute zero
- Kelvin Scale
- Temp scale calibrated in terms of energy itself.
- Temperature
- The property of a material that tells how warm or cold it is with respect to some standard.
- Heat
- The energy that is transferred from one material to another because of temperature difference between the materials. Once the energy is absorbed by matter, it is internal energy.
- Thermal Contact
- The state of two or more ojects that is possible for heat to flow from one to another
- Thermal Equilibrium
- The state of two or more objects or substances in thermal contact when they have reached a common temperature
- Specific Heat
- The quantity of heat required to raise the temperature of a unit mass of a substance by one degree
- Internal Energy
- The total energy inside of a substance
- calorie
- Unit of heat; one calorie is amoutn needed to raise temp of 1g of water 1 degree celsius.
- Kilocalorie
- A unit of heat; one kilocalorie equals 1000 calories. Raises 1kg of water 1 degree celsius.
- Bimetallic Strip
- Two strips of different metals, such as one brass and one of iron, that are welded or riveted together; Because substances expand at different rates, when heated or cooled they bend in different directions.
- Thermostat
- A type of valve or switch that responds to change in temperature and that is used to control the temperature of something.