kinetic energy	energy in the form of movement - a type of mechanical energy
thermal energy	energy in the form of heat
electrical energy	the energy of an electric current
sound energy	energy in the form of noise
light energy	light emitted from the sun or from a light bulb
chemical energy	energy within substances that can produce a chemical reaction
nuclear energy	energy from an atomic reaction.
converted	change something from one form to another
strain energy	energy gained when component is elastically deformed
energy source	source of energy (electricity)
useful energy	energy used for a purpose
waste energy	energy for example dissipated (heat) and not used
work	amount of energy needed to do a task
work done	amount of energy converted in order to perform a task
joules (J)	unit of work done, work required to move 1N object by 1m
power	speed or rate at which work is done
watts (W)	unit of power, one joule per second
wattage	power in watts is often referred to as
powered	eupplied with energy or electricity to operate
stored	energy or resources held for future use
potential energy	energy that is held in an object due to its position or state, with the capacity to do work
dissipated	energy spread out or lost, making it unavailable for useful work
efficient	performing a task with minimal wasted energy or resources
75% efficient	convert 75% of input energy into useful output, with 25% lost
efficiency	the quality of doing something well with no waste of time or resources
efficiency gains	improvements in efficiency, less wasted energy
powerful	having a large amount of energy or strength to perform work
less powerful	having a smaller amount of energy or strength to perform work
temperature	a measure of how hot or cold something is
degrees Celsius	unit of temperature
heat	increase temperature and energy of something.
heated	something hot with a lot of heat
specific heat capacity	the amount of energy in joules required to raise the temperature of 1kg sub. by 1C
state	form of a substance: solid or liquid or gas
melt	change from solid to liquid
vapour	substance of a gaseous state
boil	heat a liquid to the point of vaporization
evaporation	change from liquid to gas
endothermic	process that absorbs energy (melting, evaporation)
absorb	take in energy
heat source	source of heat
cools	loses heat and energy
condenses	change from gas to liquid
solidifies	change from liquid to solid
exothermic	process that emits energy
emit	release energy
latent heat	amount of energy absorbed or emitted while a substance changes state J/kg
latent heat of fusion	latent heat during melting
latent heat of vaporization	latent heat during vaporization
heating systems	systems designed to provide warmth to a space
convector	type of heater that warms the air, causing it to circulate through convection
circulate	move continuously through a closed system or space
convection	transfer of heat through the movement of a gas or liquid
transferring	moving something from one place to another
radiators	devices in heating systems that transfer heat (dissipate)
heat exchangers	Devices that transfer heat from one substance to another without mixing them
conduction	transfer of heat through direct contact
conducted	moved or transferred
radiation	transfer of heat through electromagnetic waves
electromagnetic waves	waves that carry energy and can travel through space
circuit	closed path that allows electric current to flow
cell	provider of current
current	rate of flow of electric charges
conduct	allow current to flow through
electrical supply	supply of electricity
electrical conductor	element that conducts electricity
electrical components	electrical devices
amperes	unit of current
electric charge	property of electrons
electrons	particles with negative charge
flows	moves continuously
amperage	another word for amperage
charge carriers	flowing electrons carrying current
battery	number of cells placed together
lamp	bulb
electromotive force	force that drives electric current through a circuit
volts	unit of electromotive force
voltage	determines how much current can flow
resistance	measure of how easily current can flow through circuit
ohms	unit of resistance
filament	metal wire inside a lamp
insulators	materials with high resistance
insulate	cover component with insulator
live	carrying current
electric shock	come in contact with live wire
electrical appliance	device using electricity
power rating	amount of power required by an appliance
DC	constant flow of electricity
mains electricity	electricity supplied to homes
AC	alternating flow of electricity
DC supply	source of DC
AC supply	source of AC
alternate	change from one state to another continuously
frequency	rate at which current alternates
Hz	unit of frequency 1/s
sine wave	waveform representing alternating current
single-phase	AC supply with one sine wave
three-phase	AC supply with three overlapping sine waves
phase	timing or position of a waveform in AC
generated	produced
power stations	facilities that generate electricity
generators	machines converting mechanical energy to electricity
armature	iron core withing a generator
field coils (field windings)	coils of wire wrapped around the armature
electromagnetic induction	process of generating electric current through the movement of a magnetic field within coils of wire
grid	network of interconnected power lines and stations
power lines	cables that carry electricity over long distances
transformers	devices that change the voltage of electricity to make it suitable for transmission or use
step-up transformers	transformers that increase voltage and decrease current
high-voltage	voltage used for efficient long-distance transmission
low-voltage	voltage used for end-user applications in homes and businesses
step-down transformers	transformers that decrease voltage and increase current
stepped up	increased in voltage
transmission lines	high-voltage power lines used to carry electricity over long distances
stepped down	decreased in voltage
distribution lines	lower-voltage power lines that deliver electricity directly to homes and businesses
photovoltaic cells	solar cells that convert sunlight into DC
rechargeable batteries	batteries that can be recharged
charging	process of storing electrical energy in a battery
inverter	device that converts DC to AC
superheated steam	extremly hot steam
steam	another word for water vapour
cooling systems	systems designed to cool smh. for example your car
coolant	liquid used for cooling
heat sink	An object with a high level of thermal inertia
thermal Inertia	The ability of a material or system to resist changes in temperature