Energy
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46 Terms
energy
The ability to do work or produce change
form of energy
A type or category of energy
kinetic energy
Energy of movement
mechanical energy
Energy related to motion or forces
thermal energy
Energy in the form of heat
electrical energy
Energy carried by an electric current
sound energy
Energy in the form of sound or noise
light energy
Energy in the form of visible light
chemical energy
Energy stored in chemical substances
nuclear energy
Energy released from atomic reactions
potential energy
Stored mechanical energy due to position
strain energy
Energy stored in an elastically deformed object
convert energy
To change energy from one form to another
energy conversion
The process of changing one form of energy into another
energy source
The origin from which energy is obtained
useful energy
Energy that performs the intended task
waste energy
Energy that cannot be used for the intended purpose
dissipate
To spread or lose energy into the surroundings
efficient
Able to convert a high percentage of energy into useful energy
efficiency
The percentage of useful energy output compared to total energy input
efficiency gain
An improvement in energy efficiency
motor
A machine that converts electrical energy into mechanical energy
consume energy
To use energy
work
The amount of energy needed to perform a task
power
The rate at which work is done
joule (J)
The SI unit of work and energy
watt (W)
The SI unit of power
wattage
The power rating of a device in watts
force
A push or pull acting on an object
distance
The length over which work is done
load
An object being lifted or moved
crane
A machine used to lift heavy loads
spring
A component that stores strain energy
battery
A device that stores chemical energy
electric current
A flow of electric charge
heat
Thermal energy transferred between objects
noise
Unwanted sound energy
movement
Motion of an object
release
To allow stored energy to become active
store energy
To keep energy for later use
powerful
Having a high power output
powered
Operated using a source of energy
stored energy
Energy kept for future use
rate
The speed at which something happens
useful output
The intended energy produced by a machine
energy efficiency
The ability to minimise waste energy while maximising useful energy