Term 3 Flashcards
Bar graph
A mathematical drawing in which different amounts are represented by thin vertical or horizontal rectangles which have the same width but different heights or lengths
Ampere
The standard unit of measurement for the strength of an electrical current
Cell (electrical)
A device for producing electrical energy from chemical energy
Circuit diagram
the plan of an electrical circuit using international symbols
closed circuit
a circuit in which the closed switch allows electricity to flow
conduct
to allow electricity to go through
conductor
a substance that allows electricity to go through it
conducts
serves as a channel or medium for heat, electricity or sound
constraint
limitation or restriction
crank
a device that causes movement between parts of a machine, or that changes backward and forward movement into circular movement
crude oil
petroleum as it comes out of the ground, unrefined
electrical current
the movement of electricity in a particular direction
electrical charge
this is the measure of how much electricity there is
evaporate
to cause a liquid to change to a gas, especially y heating
experiments
tests done in order to learn something or to discover whether something works
hydroelectric
the generation of electricity from the energy of falling water
Infrastructure
the basic underlying framework or features of a system, building or organisation
insulated
something that has been covered with a material that prevents the flow of electricy
insulator
a material or covering which electricity cannot go through
international symbols
signs or shapes used all over the world to represent components
mains electricity
type of electricity that provides power to homes and businesses
negative terminal
relating to a battery or electric terminal: electricity flows from negative to positive terminals
open circuit
a circuit in which the open switch stops electricity from flowing
positive terminal
relating to a battery or electric terminal: electricity flows from negative to positive terminals
Solar energy
electrical energy absorbed from the sun
stored energy
energy that has been placed somewhere for use later, such as electricity in a battery
switch
a device for turning on or off or directing an electric current or for making or breaking a circuit
transform
to change in form, appearance or struture
turbine
any of the various machines having a rotor, usually with vanes or blades, driven by the pressure of reactive thrust of a moving fluid
voltage
the force of an electric current measured in volts
