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ACT Ciência - Eletromagnetismo e Mecânica

Aqui você aprenderá algumas palavras em inglês relacionadas ao eletromagnetismo e à mecânica, como "torque", "ânodo", "fulcro", etc., que o ajudarão a acertar seus ACTs.

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ACT Vocabulary for Science
voltage

the electronic potential and force whose measurement unit is volts

tensão

tensão

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resistor

an electrical component designed to limit or control the flow of electric current in a circuit, typically by providing resistance

resistor

resistor

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circuit

the complete circle through which an electric current flows, typically consists of the source of electric energy

circuito elétrico

circuito elétrico

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semiconductor

a solid substance that conducts electricity or heat better than insulators, but not as well as most metals

semicondutor

semicondutor

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superconductivity

a phenomenon where certain materials conduct electricity without resistance when cooled to extremely low temperatures

supercondutividade

supercondutividade

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to electrify

to apply an electric charge to a conductor

eletrificar

eletrificar

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electrode

a conductor through which electricity travels to or from an object, such as batteries

eletrodo

eletrodo

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anode

a positively charged electrode in an electrical device where oxidation occurs, resulting in the release of electrons

ânodo

ânodo

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cathode

a negatively charged electrode within an electrical device, from which electrons flow out into the external circuit

cátodo

cátodo

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static electricity

a form of electricity generated by friction between two materials, resulting in an imbalance of electric charges on their surfaces

eletricidade estática

eletricidade estática

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rechargeable

(of a battery or device) capable of being supplied with electrical power again

recarregável

recarregável

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generator

a machine that produces electricity by converting mechanical energy into electrical energy

gerador

gerador

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solar cell

a device that converts the energy of the sun into electricity

célula solar

célula solar

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solar irradiance

the amount of solar energy received per unit area on Earth's surface

irradiância solar

irradiância solar

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radiation

the energy transmitted in the form of particles or waves through the space or a matter

radiação

radiação

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photovoltaic

related to the technology that turns sunlight directly into electricity

fotovoltaico

fotovoltaico

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electromagnetic

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

eletromagnético

eletromagnético

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magnetic field

an invisible area around a magnetic object where magnetic forces can attract or repel other objects

campo magnético

campo magnético

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lever

a long rigid bar that is put under a heavy object in order to move it

alavanca

alavanca

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vibration

the rapid back-and-forth movement of an object

vibração

vibração

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fulcrum

a point or support on which a lever pivots or rotates in order to lift or move objects

ponto de apoio

ponto de apoio

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torque

a rotational force measured in newton-meters or foot-pounds

torque

torque

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spring constant

a measure of a spring's stiffness, indicating how much force is needed to stretch or compress it

constante da mola

constante da mola

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counterweight

a mass used to provide balance to another mass

contrapeso

contrapeso

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supersonic

having a speed greater than that of sound

supersônico

supersônico

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aviation

the study of the design, development, and operation of aircrafts, focusing on principles of aerodynamics, propulsion, and material science

aviação

aviação

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robotics

an area of technology that is concerned with the study or use of robots

robótica

robótica

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acceleration

(physics) the increase in velocity over time

aceleração

aceleração

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terminal velocity

the constant speed reached by a falling object when the drag force equals the gravitational force pulling it downward, resulting in no further acceleration

velocidade terminal

velocidade terminal

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hydraulic

relating to the transmission or control of fluids under pressure within confined systems or machinery

hidráulico

hidráulico

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gravity

(physics) the universal force of attraction between any pair of objects with mass

gravidade

gravidade

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