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Sciences ACT - Électromagnétisme et Mécanique

Ici, vous apprendrez quelques mots anglais liés à l'électromagnétisme et à la mécanique, tels que "couple", "anode", "point d'appui", etc. qui vous aideront à réussir vos ACT.

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ACT Vocabulary for Science
voltage
voltage
[nom]

total potential energy provided by a power source

tension, voltage

tension, voltage

Ex: This power outlet delivers 120V, but your device needs 240V. 
resistor

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

résistance, résistor

résistance, résistor

Ex: In electronic circuits, resistors are commonly used to regulate the flow of current and protect sensitive components. 
circuit
circuit
[nom]

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

circuit

circuit

Ex: The electrical circuit is designed to power the light bulb when the switch is turned on. 
semiconductor

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

semi-conducteur

semi-conducteur

superconductivity

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

supraconductivité, superconductivité

supraconductivité, superconductivité

Ex: Scientists are researching new materials to achieve superconductivity at higher temperatures. 
to electrify

to apply an electric charge to a conductor

électrifier, charger électriquement

électrifier, charger électriquement

Ex: The technician used a special device to electrify the metal rod for the experiment. 
electrode

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

électrode

électrode

Ex: The electrode in the battery connects the chemical reaction to the external circuit. 
anode
anode
[nom]

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

anode

anode

Ex: The anode of the X-ray tube emits electrons when heated, producing X-rays for medical imaging. 
cathode
cathode
[nom]

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

cathode

cathode

Ex: The cathode of the battery supplies electrons to the external circuit when the device is in use. 
static electricity

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

électricité statique, électrostatique

électricité statique, électrostatique

Ex: When you shuffle your feet on a carpet, static electricity builds up, causing a shock when you touch a doorknob. 
rechargeable
rechargeable
[Adjectif]

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

rechargeable, à recharge

rechargeable, à recharge

Ex: The flashlight runs on rechargeable batteries. 
generator

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

générateur

générateur

Ex: The hydroelectric generator harnesses the power of flowing water to produce electricity for nearby communities. 
solar cell

a device that converts the energy of the sun into electricity

panneau solaire

panneau solaire

Ex: A solar cell, also known as a photovoltaic cell, converts sunlight directly into electricity. 
solar irradiance

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

irradiance solaire, rayonnement solaire

irradiance solaire, rayonnement solaire

radiation

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

radiation

radiation

Ex: The sun emits radiation that warms the Earth. 
photovoltaic
photovoltaic
[Adjectif]

related to the technology that turns sunlight directly into electricity

photovoltaïque, relatif à la conversion de la lumière en électricité

photovoltaïque, relatif à la conversion de la lumière en électricité

Ex: Solar panels use photovoltaic cells to convert sunlight into electricity. 
electromagnetic
electromagnetic
[Adjectif]

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

électromagnétique

électromagnétique

Ex: Light is an electromagnetic wave that can travel through a vacuum. 
magnetic field

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

champ magnétique, champ d'aimantation

champ magnétique, champ d'aimantation

Ex: The Earth has a magnetic field that helps guide the navigation of compasses. 
lever
lever
[nom]

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

levier

levier

Ex: He used a lever to lift the heavy rock from the ground. 
vibration

the rapid back-and-forth movement of an object

vibration, oscillation

vibration, oscillation

Ex: The vibration of the phone on the table alerted her to an incoming call. 
fulcrum
fulcrum
[nom]

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

pivot, point d'appui

pivot, point d'appui

Ex: The plank acted as a fulcrum for the seesaw, allowing the children to take turns going up and down. 
torque
torque
[nom]

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

couple, moment de force

couple, moment de force

Ex: The wrench applied torque to loosen the stubborn nut on the bolt. 
spring constant

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

constante de ressort, raideur du ressort

constante de ressort, raideur du ressort

counterweight

a mass used to provide balance to another mass

contrepoids, masse d'équilibrage

contrepoids, masse d'équilibrage

Ex: The elevator uses a counterweight to help lift and lower the car smoothly. 
supersonic
supersonic
[Adjectif]

having a speed greater than that of sound

supersonique, ultrasonique

supersonique, ultrasonique

Ex: The fighter jet can travel at supersonic speeds, making it highly agile in aerial combat. 
aviation

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

aéronautique, aviation

aéronautique, aviation

robotics

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

robotique

robotique

acceleration

(physics) the increase in velocity over time

accélération, augmentation de la vitesse

accélération, augmentation de la vitesse

Ex: Acceleration measures how quickly an object's speed changes. 
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

vitesse terminale, vitesse limite

vitesse terminale, vitesse limite

Ex: Skydivers reach terminal velocity during their freefall before deploying their parachutes. 
hydraulic
hydraulic
[Adjectif]

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

hydraulique

hydraulique

Ex: Students in the hydraulic engineering program studied fluid mechanics, pipe systems, and control mechanisms. 
gravity
gravity
[nom]

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

gravité

gravité

Ex: Gravity is what keeps the planets in orbit around the Sun and the Moon in orbit around the Earth. 
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