Chapter 14 Flashcards
Freezing point of water is 0° and boiling point of water is 100°
Celsius scale
The amount of joules of energy required to raise the temperature of 1 kg of a substance by 1 kelvin unit
Specific heat
The transfer of heat by the movement of current within a fluid: heated air in a room, ocean currents, land breezes and sea breezes
Convection
What happens to a substance when thermal energy increases
It’s particles move faster and the substance expands; thermal expansion
Official SI not degrees freezing point of water is 273 in boiling point of water is 373
Kelvin scale
Zero kelvins is -273° which is the coldest temperature possible
Absolute zero
A measure of the average kinetic energy of individual particles of matter
Temperature
The circular movement of particles of matter with different amounts of thermal energy
Convention current
Is thermal energy moving from a warmer object to a cooler object
Heat
Is the transfer of thermal energy
Heat
Thermal energy is the in a substance
Total potential and kinetic energy of the particles
A material with high specific heat can
Absorb a great deal of thermal energy without a great change in its temperature
What is heat measured in
Joules
The Temperature 1 kg of a substance by 1 K unit is
Specific heat
The transfer of thermal energy by electromagnetic waves
Radiation
A material with high specific heat can
Absorb a great deal of thermal energy without a great change in its temperature
What is the specific heat of water
4180 J/kg-k
The Temperature 1 kg of a substance by 1 K unit is
Specific heat
How do refrigerators keep things cold
Refrigerators absorb thermal energy from the food inside and the transfers the thermal energy to the room outside
A lack of thermal energy is cold
Heat movers-refrigerators and air conditions
Move heat for cool areas to warm areas
What is the hardest thing to raise temperature
Water
Transfer of heat from one particle of matter to another without The movement of matter are in direct contact
Conduction
What would happened when two objects have different temperatures
Heat will flow from warmer object To the colder object
Transfer of thermal energy very well
Conductor
The amount of joules of energy required to raise the temperature of 1 kg of a substance by 1 kelvin unit
Specific heat
Do not transfer of thermal energy
Insulators
How do engines use thermal energy
Heat engines transform thermal energy into mechanical energy
What causes matter to change state
Matter changes state when thermal energy was either absorbed or released
What is the hardest thing to raise temperature
Water
Transfer of heat from one particle of matter to another without The movement of matter are in direct contact
Conduction
The transfer of heat by the movement of current within a fluid: heated air in a room, ocean currents, land breezes and sea breezes
Convection
The circular movement of particles of matter with different amounts of thermal energy
Convention current
What is the specific heat of water
4180 J/kg-k
Freezing point of water is 32° and boiling point of water is 212°
Fahrenheit scale
The transfer of thermal energy by electromagnetic waves
Radiation
What would happened when two objects have different temperatures
Heat will flow from warmer object To the colder object
Transfer of thermal energy very well
Conductor
Do not transfer of thermal energy
Insulators
What causes matter to change state
Matter changes state when thermal energy was either absorbed or released
What happens to a substance when thermal energy increases
It’s particles move faster and the substance expands; thermal expansion
How do engines use thermal energy
Heat engines transform thermal energy into mechanical energy
How do refrigerators keep things cold
Refrigerators absorb thermal energy from the food inside and the transfers the thermal energy to the room outside
A lack of thermal energy is cold
Heat movers-refrigerators and air conditions
Move heat for cool areas to warm areas
