Vocabular Avansat pentru TOEFL - Fizică și Chimie

a space that is utterly empty of all matter

vid

(chemistry) to merge or be merged by a chemical bond

lega

the different elements that form something or the arrangement of these elements

compoziție

to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it

distila

to press two things together or be pressed together to become smaller

comprima

(physics) an invisible substance that makes up most of the universe's mass, detectable only through its gravitational effects

materie întunecată

(physics) matter consisting of elementary particles that are the antiparticles of those of regular matter

antimaterie

(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself

catalizator

to increase the velocity of something

accelerare

any substance with a pH of more than seven that neutralizes acids creating salt and water

alcali

a liquid that is capable of dissolving another substance

solvent

a gas with a strong smell that dissolves in water to give a strongly alkaline solution

amoniac

a hard black substance consisting of an amorphous form of carbon which is made by slowly burning wood and is used as fuel or for drawing

cărbune

having an electric charge

încărcat

a substance that permits electricity to pass through or along it

conductor

a substance of small size and equal sides, formed naturally when turns to solid

cristal

a particle with a net electric charge due to loss or gain of one or more electrons

ion

referring to the combined interaction of electric and magnetic fields, often associated with waves or radiation

electromagnetic

the process or action of splitting a nucleus into two or more parts resulting in the release of a significant amount of energy

fisiune nucleară

(physics) the reaction in which two nuclei join together and produce energy

fuziune nucleară

to become gas or vapor from liquid

evapora

a light silver-gray metal used primarily for making cooking equipment and aircraft parts

aluminiu

a combination of two or more metals, creating a metal that is usually stronger or more resistant

aliaj

a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring

cupru

(physics) possessing the attribute of attracting metal objects such as iron or steel

magnetic

the resistance that two surfaces moving on each other encounter

frecare

the gradual destruction of materials by chemical reaction, usually of metals

corozie

(physics) the property of matter that gives it weight in a gravitational field and is a measure of its inertia

masă

(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume

densitate

the speed at which something moves in a specific direction

viteza

a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past

plumb

a soft, black, and highly conductive material made up of carbon atoms that is commonly used in pencils and as a lubricant

grafit

a heavy silver-colored and poisonous metal that has a liquid state in the ordinary temperature

mercur

a chemical element and a silver-white metal used in making alloys

nichel

a gas with nearly no electrical charge that exists in the sun and other stars

plasmă

a heavy radioactive metallic element used in producing nuclear energy

uran

containing or relating to a dangerous form of energy produced by nuclear reactions

radioactiv

related to heat or temperature, including how heat moves, how materials expand with temperature changes, and the energy stored in heat

termic

remaining still, with no change in position

static

produced artificially, typically based on its natural version

sintetic