[Electricity and Magnetism 전기와 자기 영영풀이]
atom
noun : the smallest part of an element
attract
verb : to pull toward
charge
noun : the property of matter that causes it to be electrically positive or negative, caused by losing or gaining electrons
conductor
noun : a material, usually a metal, that transfers heat, electricity, or sound from one object to another
electricity
noun : energy created by moving charged particles
electron
noun : a particle in an atom that orbits the nucleus and has a negative electrical charge
generator
noun : a machine that turns motion into electricity
ion
noun : an atom that has gained or lost electrons and has an electrical charge
magnetism
noun : a force that pushes and pulls certain metals
neutron
noun : a particle in the nucleus of an atom that has no electrical charge
north pole
noun : the end of a magnet where lines of force flow out
power plant
noun : a factory that makes electricity
proton
noun : a particle in the nucleus of an atom that has a positive electrical charge
repel
verb : to force something away
shock
noun : a sharp jolt experienced when electrical current touches or travels through a person's body
south pole
noun : the end of a magnet where lines of force flow in
alternating current
noun : an electric current in which electrons move rapidly back and forth
ampere
noun : the basic unit for measuring the amount of electric current in a wire
circuit
noun : a closed path along which an electric current travels
direct current
noun : an electric current in which electrons move in one direction
electric current
noun : the movement of electrons through matter
electrode
noun : a point through which electricity flows into or out of a device, such as a battery
electromagnet
noun : a magnet that can be turned on or off and is made by sending electricity through metal
electromagnetism
noun : a combined force of electricity and magnetism
hydroelectric plant
noun : a power plant that produces electricity from moving water and turns turbines connected to generators
insulator
noun : a material or device that prevents or reduces the transfer of heat, electricity, or sound
line of force
noun : an invisible line of magnetic force that flows through and around a magnet, forming a magnetic field
magnetic field
noun : an area around a magnet or a moving electric charge where there is a magnetic force
permanent magnet
noun : a material that is always magnetic
static electricity
noun : electricity caused by a buildup of negative charges in one place and positive charges in another
temporary magnet
noun : a material that is magnetic only while in the magnetic field produced by an electric current or a permanent magnet
turbine
noun : a fan-shaped machine that captures the motion of water, wind, or steam to create an electric current