Glossary Flashcards
What is an Ammeter
A device for measuring eletric current in a circuit
What is an Amps
Units of measurement of electric current, symbol A
What is an Atom
A neutral particle ; everything is made of atoms
What is an Attract
Be pulled together, for example, opposite poles of a magnet attract and poitive and negative chargess attract
What is a Battery
Two or more eletrical cells joined together
What is a cell
A chemical store of energy , which provides the push that moves charge around a circuit
What is a conductor
A material that conducts charge or energy well, such as a metal or graphite.
What is a Core
A rod of a magnetic material placed inside a coil to make the magnetic field of an electromagnet stronger
What is a current
The flow of electrical charge (electrons) around a complete circuit per second
What is an eletrical charge
A property of a material or particle that can be positive or negative.
What is an eletrical field
A region where a charged material or particle experiences a force.
What is an electromagnet
A temporary magnet produced using an electric current.
What is an electron
A negatively charged particle found in atoms. Electrons flow through a wire when a current flows.
What is an insulator
A material that does not conduct electricity or transfer energy well.
What is lightning
A current through the air that produces light and sound.
What is a magnetic field lines
A current through the air that produces light and sound.
What is a magnetic material
A material that is attracted to a magnet, such as iron, steel, nickel, or cobalt.
What is magnetise
Make imto a magnet
What is a motor
A component or machine that spins when a current flows through it.
What is a negative
The charge on an electron, or on an object that has had electrons transferred to it
What is a neutral
Describes an object or particle that has no charge, or in which positive and negative charges cancel out, giving no charge overall.
What is a neutron
A neutral particle found in atoms.
North Pole
The pole of a magnet that points towards the north.
What is an ohms
The unit of resistance, symbol Ω.
Parallel
A circuit in which there are two or more paths or branches for the current.
What is positive
The charge on a proton, or on an object that has had electrons transferred from it.
What is potential difference
A measure of the push of a cell or battery, or the energy that the cell or battery can supply.
What is a positively charged particle found in atoms
A positively charged particle found in atoms.
What is a rating
A positively charged particle found in atoms.
What is a relay
Electrical device that uses current flowing through it in one circuit to switch on and off a current in a second circuit.
What is repel
Be pushed away from each other, for example, like magnetic poles repel or like electrical charges repel
What is resistance
How difficult it is for current to flow through a component in a circuit.
What is series
A circuit in which components are joined in a single loop.
What is the South Pole
The pole of a magnet that points towards the south.
Switch
A component that controls the current by making or breaking the circuit.
What is voltage
A measure of the strength of a cell or battery used to send a current around a circuit.
What is voltmeter
A device for measuring voltage.
What is volts
Units of measurement of voltage, symbol V.
