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Khoa Học Tự Nhiên SAT - Điện từ và Cơ học

Tại đây, bạn sẽ học một số từ tiếng Anh liên quan đến điện từ và cơ học, chẳng hạn như "mô-men xoắn", "cực dương" và "mạch", mà bạn sẽ cần để đạt thành tích cao trong kỳ thi SAT của mình.

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SAT Vocabulary for Natural Sciences

voltage

the measure of electric potential difference between two points in a circuit, expressed in volts

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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

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circuit

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

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semiconductor

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

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superconductivity

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

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to electrify

to apply an electric charge to a conductor

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electrode

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

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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

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rechargeable

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

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generator

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

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anode

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

anode

anode

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cathode

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

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solar cell

a device that converts the energy of the sun into electricity

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solar irradiance

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

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radiation

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

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photovoltaic

related to the technology that turns sunlight directly into electricity

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electromagnetic

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

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magnetic field

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

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lever

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

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fulcrum

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

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vibration

the rapid back-and-forth movement of an object

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torque

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

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spring constant

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

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counterweight

a mass used to provide balance to another mass

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supersonic

having a speed greater than that of sound

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acceleration

(physics) the increase in velocity over time

gia tốc

gia tốc

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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

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aviation

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

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hydraulics

a branch of science and engineering that deals with the mechanical properties of liquids, particularly their behavior in confined spaces and under pressure

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robotics

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

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gravity

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

[Danh từ]

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