Energy Flashcards
Boiling
transfer from liquids to gasses
Closed System
an isolated energy system in which no energy transfers take place outside of or into the energy system
Condensing
transfer from gasses to liquid
Conduction
transfer between particles in a solid
Conductivity
the power of heat conduction
Conductor
a substance that conducts heat, such as lightning rod on the side of a building
Density
mass per unit volume
Efficiency
a measure of how good a device is at changing energy from one store to another
Electrical Transfer
energy transfer through electricity, eg static electricity
Energy
something that cannot be created or destroyed, only moved from one system to another
Nuclear Energy
the energy inside the nucleus of an atom
Elastic Potential Energy
energy inside things that can stretched
Gravitational Potential Energy
energy in gravity
Magnetic Energy
energy in magnets
Thermal Energy
energy of heat
Kinetic Energy
energy in things that move, such as people’s bodies and sound waves
Chemical Energy
energy in chemical reactions
Freezing
transfers from liquids to solids
Insulator
a bad conductor whose particles are too far apart to allow energy to flow between them, such as liquids, gasses and vacuums
Internal Energy
the sum of all the kinetic energy the individual particles have from moving relative to each other and the potential energy that individual particles have because of their positions relative to each other in a substance
Mechanical Transfer
how energy is transferred by movement
Melting
transfer from solids to liquids
Open System
systems which interact with their environment, so that energy or mass can be added or removed from them
Power
energy transferred in a given time
Temperature
a mass of average kinetic energy of particles in an object
Transfer Through Heating
happens in things like boiling eggs
Transfer Through Radiation
happens in things like sound waves
Work Done
energy transferred
