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Vocabular Avansat pentru TOEFL - Matematică și Măsurare

Aici veți învăța câteva cuvinte în engleză despre matematică și măsurare, cum ar fi "amper", "hertz", "cal putere" etc., necesare pentru examenul TOEFL.

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Advanced Words Needed for TOEFL
watt
watt
[substantiv]

the standard unit for measuring electrical power corresponding to the rate of energy consumption in an electric circuit, equal to one joule per second

watt, watt

watt, watt

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volt
volt
[substantiv]

the standard unit of electromotive force, which measures the strength of an electrical current that is sent around an electrical system

volt, tensiune

volt, tensiune

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rpm
rpm
[substantiv]

a unit for measuring the speed of an engine, a computer hard drive, etc.

rotații pe minut, rpm

rotații pe minut, rpm

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karat
karat
[substantiv]

a unit to measure the purity of gold, the purest gold being 24 karats

carat, unitate de măsură a purității aurului

carat, unitate de măsură a purității aurului

Ex: The jeweler confirmed that the necklace was made of 18 karat gold, which is 75% pure gold mixed with other metals for added strength. 
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fluid ounce
fluid ounce
[substantiv]

a unit of volume used in the United States to measure liquids, equal to approximately 29.5735 milliliters

uncie fluidă, fluid uncie

uncie fluidă, fluid uncie

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hertz
hertz
[substantiv]

a unit that is used in measurement of the frequency of sound and radio waves

hertz

hertz

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horsepower
horsepower
[substantiv]

a unit for measuring an engine's power

cal putere, CP

cal putere, CP

Ex: Horsepower is a unit of power used to measure the rate at which work is done. 
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pint
pint
[substantiv]

a measure equal to 16 fluid ounces, often used for measuring liquids such as beer or milk

pint, halbă

pint, halbă

Ex: I'll have a pint of beer, please. 
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cube
cube
[substantiv]

the result of multiplying a number by itself three times

cub, puterea a treia

cub, puterea a treia

Ex: The cube of two is eight. 
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square
square
[substantiv]

the second exponent of any given number produced when multiplied by itself

pătrat, puterea a doua

pătrat, puterea a doua

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square root
square root
[substantiv]

a number that produces a particular number when multiplied by itself

rădăcină pătrată, rădăcină

rădăcină pătrată, rădăcină

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variable
variable
[substantiv]

(mathematics) a quantity that is capable of assuming different values in a calculation

variabilă

variabilă

Ex: In algebra, variables such as x, y, and z represent quantities that can vary or change in value. 
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tape measure
tape measure
[substantiv]

a flexible measuring tool consisting of a long strip of metal, cloth, or plastic with measurement markings, used to measure lengths and distances accurately

ruletă de măsurat, bandă de măsurat

ruletă de măsurat, bandă de măsurat

Ex: The carpenter used a tape measure to determine the length of the wooden board needed for the shelf. 
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array
array
[substantiv]

a group of numbers, mathematical symbols or values, arranged in columns and rows

matrice, matrice

matrice, matrice

Ex: The program stores values in a two-dimensional array. 
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axis
axis
[substantiv]

the central point or line around which an object turns

ax, pivot

ax, pivot

Ex: The Earth spins on its axis once every twenty-four hours. 
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calculus
calculus
[substantiv]

the branch of mathematics that comprises differentials and integrals

calcul, analiză

calcul, analiză

Ex: Calculus is used to find the area under a curve. 
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denominator
denominator
[substantiv]

the number below the line in a fraction that shows how many parts the numerator divides into

numitor, divizor

numitor, divizor

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numerator
numerator
[substantiv]

Fractional number above the line

numărător, numărul de deasupra liniei

numărător, numărul de deasupra liniei

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common denominator
common denominator
[substantiv]

(mathematics) a number divisible by all the numbers that are below the line in a set of fractions

numitor comun, comun numitor

numitor comun, comun numitor

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chaos theory
chaos theory
[substantiv]

(mathematics) an interdisciplinary theory about complex systems that obey particular laws but appear to have little or no order

teoria haosului, teoria dezordinii

teoria haosului, teoria dezordinii

Ex: Chaos theory explains how small changes can lead to huge differences in complex systems. 
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game theory
game theory
[substantiv]

a branch of mathematics that studies the strategies of dealing with competitive situations involving conflict of interests, especially in business, war, etc.

teoria jocurilor, teoria jocului

teoria jocurilor, teoria jocului

Ex: Game theory helps businesses decide on the best pricing strategies. 
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coordinate
coordinate
[substantiv]

any set of numbers that represents an exact position on a map or graph

coordonată, coordonate geografice

coordonată, coordonate geografice

Ex: The GPS coordinates 35.6895° N, 139.6917° E lead to Tokyo. 
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gradient
gradient
[substantiv]

the rate at which a quantity or dimension changes over a given distance or interval

gradient, pantă

gradient, pantă

Ex: The gradient of the river’s flow affects its speed. 
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prime number
prime number
[substantiv]

a number greater than 1 with only two devisors which can be itself or 1

număr prim

număr prim

Ex: 7 is a prime number because its only divisors are 1 and 7. 
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cardinal number
cardinal number
[substantiv]

a number indicating the quantity and not order

număr cardinal, numeral cardinal

număr cardinal, numeral cardinal

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irrational number
irrational number
[substantiv]

a number incapable of being expressed as a ratio of two integers

număr irațional, număr incomensurabil

număr irațional, număr incomensurabil

Ex: The square root of 2 is an irrational number. 
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rational number
rational number
[substantiv]

a number that can be written as a fraction, where both the top and bottom are whole numbers, and the bottom is not zero

număr rațional, fracție rațională

număr rațional, fracție rațională

Ex: 3/4 is a rational number because it can be written as a fraction of two integers. 
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mean
mean
[substantiv]

(mathematics) the average value of a set of quantities calculated by adding them, and dividing them by the total number of the quantities

medie, medie aritmetică

medie, medie aritmetică

Ex: To find the mean of 4, 6, and 8, add them together and divide by 3. 
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perimeter
perimeter
[substantiv]

the total length of the external boundary of something

perimetru

perimetru

Ex: The geometry student calculated the perimeter of the rectangular garden to determine how much fencing would be needed. 
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tangent
tangent
[substantiv]

(mathematics) the ratio of the opposite to the adjacent side of a triangle that has one angle of 90°

tangentă, tangenta

tangentă, tangenta

Ex: If the tangent of an angle is 1, it means the height and base of our triangle are the same. 
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sine
sine
[substantiv]

(mathematics) the ratio of the length of the side opposite the given angle to the length of the hypotenuse

sinus

sinus

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cosine
cosine
[substantiv]

(mathematics) the ratio of the adjacent side to the hypotenuse

cosinus, cosinus

cosinus, cosinus

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cotangent
cotangent
[substantiv]

the ratio of the side adjacent to a particular acute angle to the side opposite the angle, in a right-angled triangle

cotangentă

cotangentă

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foot per second
foot per second
[substantiv]

a unit of measurement used to determine the speed or velocity of something

picior pe secundă, picior/secundă

picior pe secundă, picior/secundă

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ampere
ampere
[substantiv]

the unit of electric current, symbolized as "A" in the International System of Units

amper, amper

amper, amper

Ex: The circuit was designed to handle a maximum current of 10 amperes to ensure safety. 
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kilometers per hour

a unit of measurement used to express speed or velocity in the metric system, representing the distance traveled in kilometers over the course of one hour

kilometri pe oră, km/h

kilometri pe oră, km/h

Ex: The car was traveling at 100 km/h. 
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centiliter
centiliter
[substantiv]

a metric unit equal to 1/100th of a liter

centilitru

centilitru

Ex: Students had to weigh and record the volume of 10 centilitres of water for a science experiment. 
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degree Celsius
degree Celsius
[substantiv]

a temperature scale where 0°C represents the freezing point and 100°C represents the boiling point of water at standard atmospheric pressure

grad Celsius

grad Celsius

Ex: Water freezes at 0 degrees Celsius. 
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pound
pound
[substantiv]

a unit for measuring weight equal to 16 ounces or 0.454 kilograms

liră

liră

Ex: She bought a pound of coffee beans to grind fresh for her morning cup of coffee. 
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