Vocabolario Avanzato per il TOEFL - Fisica e Chimica

a space that is utterly empty of all matter

vuoto

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

legare

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

composizione

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

distillare

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

comprimere

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

materia oscura

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

antimateria

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

Catalyst

to increase the velocity of something

accelerare

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

alkali

a liquid that is capable of dissolving another substance

solvente

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

ammoniaca

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

carbone

having an electric charge

accusato

a substance that permits electricity to pass through or along it

conduttore

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

cristallo

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

ione

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

onde elettromagnetiche

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

fissione nucleare

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

fusione nucleare

to become gas or vapor from liquid

evaporare

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

alluminio

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

lega

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

rame

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

magnetico

the resistance that two surfaces moving on each other encounter

attrito

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

corrosione

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

massa

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

densità

the speed at which something moves in a specific direction

velocità

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

piombo

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

grafite

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

mercurio

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

nichelino

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

plasma

a heavy radioactive metallic element used in producing nuclear energy

uranio

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

radioattivo

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

termale

remaining still, with no change in position

statico

produced artificially, typically based on its natural version

sintetico