Energy Transfers Flashcards
(22 cards)
Energy
Associated with changes in temperature or with work
Joule
The unit of energy,symbol kj
Kilojoule
1 kilojoule=1000 j, symbol kj
Law of conservation of energy
Energy can not be created or destroyed, only transferred
Chemical store
Energy store in food and fuels
Energy store
Something such as food or hot object that enables you to account for the energy at the start and end of a transfer
Thermal
Absorbs inferred
Kinetic
Energy of moving object
Gravitational potential store
Energy due to the position of an object in a gravitational field
Elastic store
Energy stored when object changes shape
Dissipated
overindulging in sensual pleasures
Temperature
the degree or intensity of heat present in a substance or object
Thermometer
an instrument for measuring and indicating temperature
Equilibrium
a state in which opposing forces or influences are balanced
Conductor
A material conducts charge
Conduction
The way in which energy is transferred through solids
Convection
The transfer of energy by movement
Radiation
the emission of energy as electromagnetic waves or as moving subatomic particles
Insulator
An electrical insulator is a material whose internal electric charges do not flow freely
Convection current
a current in a fluid that results from convection
Infrared radiation
is a region of the electromagnetic radiation spectrum
Thermal imaging camera
A thermographic camera is a device that forms a heat zone image using infrared radiation
