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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the electronic potential and force whose measurement unit is volts
tensão
an electrical component designed to limit or control the flow of electric current in a circuit, typically by providing resistance
resistor
the complete circle through which an electric current flows, typically consists of the source of electric energy
circuito elétrico
a solid substance that conducts electricity or heat better than insulators, but not as well as most metals
semicondutor
a phenomenon where certain materials conduct electricity without resistance when cooled to extremely low temperatures
supercondutividade
a conductor through which electricity travels to or from an object, such as batteries
eletrodo
a positively charged electrode in an electrical device where oxidation occurs, resulting in the release of electrons
ânodo
a negatively charged electrode within an electrical device, from which electrons flow out into the external circuit
cátodo
a form of electricity generated by friction between two materials, resulting in an imbalance of electric charges on their surfaces
eletricidade estática
(of a battery or device) capable of being supplied with electrical power again
recarregável
a machine that produces electricity by converting mechanical energy into electrical energy
gerador
a device that converts the energy of the sun into electricity
célula solar
the amount of solar energy received per unit area on Earth's surface
irradiância solar
the energy transmitted in the form of particles or waves through the space or a matter
radiação
related to the technology that turns sunlight directly into electricity
fotovoltaico
referring to the combined interaction of electric and magnetic fields, often associated with waves or radiation
eletromagnético
an invisible area around a magnetic object where magnetic forces can attract or repel other objects
campo magnético
a long rigid bar that is put under a heavy object in order to move it
alavanca
a point or support on which a lever pivots or rotates in order to lift or move objects
ponto de apoio
a measure of a spring's stiffness, indicating how much force is needed to stretch or compress it
constante da mola
the study of the design, development, and operation of aircrafts, focusing on principles of aerodynamics, propulsion, and material science
aviação
an area of technology that is concerned with the study or use of robots
robótica
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
relating to the transmission or control of fluids under pressure within confined systems or machinery
hidráulico
(physics) the universal force of attraction between any pair of objects with mass
gravidade