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Vocabulary for IELTS (Academic) - Physics

Here you will learn some English words about physics, such as "charge", "radiation", "flexible", etc. that are needed for the IELTS exam.

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Words for Academic IELTS
to bend
to bend
[Verb]

to make something straight become curved or folded

Ex: The strong wind began to bend the tall grass in the open field .
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block
block
[noun]

a large solid piece of material that is square or rectangular in shape and has flat sides

Ex: They moved the heavy granite block with a forklift .
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charge
charge
[noun]

the physical property in matter that causes it to experience a force in an electromagnetic field

Ex: An electron carries a negative charge, which determines its behavior in an electromagnetic field.
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force
force
[noun]

(physics) an effect that causes a body to move or change direction

Ex: She applied a force of 10 newtons to push the box across the floor .
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nuclear
nuclear
[Adjective]

describing weapons that are powered by the energy produced either from nuclear fission or a combination of fusion and fission reactions

Ex: Nuclear disarmament is a key goal for many international organizations .
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physicist
physicist
[noun]

an individual who is trained in physics

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wave
wave
[noun]

(physics) an oscillating movement by which energy is transferred without the transport of matter, such as light and sound

Ex: The amplitude of a wave affects its energy .
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to activate

to make something such as a process, piece of equipment, etc. start working

Ex: The manager activated the emergency protocol to evacuate the building .
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atom
atom
[noun]

(science) the smallest part of a chemical element that is found in the nature

Ex: Scientists use sophisticated instruments such as electron microscopes to observe and study the structure of atoms.
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concrete
concrete
[Adjective]

real and tangible, existing in physical form that can be sensed or experienced

Ex: The architect sketched out plans for the concrete structure , outlining every detail .
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flexible
flexible
[Adjective]

capable of bending easily without breaking

Ex: Rubber bands are flexible and can stretch to hold together stacks of papers or other objects .
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field
field
[noun]

(physics) the space or area within which the effect of a particular force exists

Ex: Scientists study the electromagnetic field to understand light and radio waves .
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to contract

to become smaller, narrower, or tighter

Ex: By the end of the process , the leather will have contracted to fit the desired shape .
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to crack
to crack
[Verb]

to break on the surface without falling into separate pieces

Ex: The painter noticed the old canvas beginning to crack, indicating the need for restoration .
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matter
matter
[noun]

a physical substance that occupies space and exists in every material in the universe

Ex: The study of matter is fundamental to fields like physics and chemistry .
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pressure
pressure
[noun]

(physics) the amount of force exerted per area that is measured in pascal, newton per square meter, etc.

Ex: Submarines withstand immense water pressure at great depths .
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motion
motion
[noun]

the process or act of moving or changing place

Ex: In physics , understanding the laws of motion is essential for studying how objects interact .
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radiation
radiation
[noun]

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

Ex: The lab measured radiation levels in the room .
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to react
to react
[Verb]

(physics) to be subject to physical or chemical change

Ex: Baking soda and vinegar react when mixed, producing carbon dioxide gas, which causes the fizzing reaction.
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to accelerate

to increase the velocity of something

Ex: In a cyclotron , charged particles are accelerated by alternating electric fields .
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to bond
to bond
[Verb]

(chemistry) to merge or be merged by a chemical bond

Ex: Oxygen molecules bond with iron atoms to create rust in the presence of moisture.
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to circulate

to constantly move around a gas, air, or liquid inside a closed area

Ex: The aquarium 's filtration system circulates water to keep it clean and oxygenated for the fish .
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density
density
[noun]

(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume

Ex: To determine the density of an object , you divide its mass by its volume .
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energy
energy
[noun]

(physics) a source of power that is required to do any work that may exist in potential, kinetic, thermal and other forms

Ex: Chemical energy stored in batteries powers electronic devices.
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fusion
fusion
[noun]

(physics) a nuclear reaction by which the nuclei of atoms combine and form a heavier nucleus, producing nuclear energy

Ex: The ITER project tests magnetic confinement for controlled fusion.
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frequency
frequency
[noun]

the number of times an event recurs in a unit of time

Ex: She was surprised by the frequency with which the company held meetings .
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gravity
gravity
[noun]

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

Ex: The strength of gravity on Earth 's surface is approximately 9.81 meters per second squared ( m / s² ) .
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mass
mass
[noun]

(physics) the property of matter that gives it weight in a gravitational field and is a measure of its inertia

Ex: In special relativity , mass is considered to be equivalent to energy , as described by Einstein 's famous equation , E = mc^2 , where E is energy , m is mass , and c is the speed of light in a vacuum .
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magnetic
magnetic
[Adjective]

produced by or relating to magnetism

Ex: Magnetic levitation trains use magnetic repulsion to float above the track , reducing friction and increasing speed .
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to reinforce

to strengthen a substance or structure, particularly by adding extra material to it

Ex: In preparation for the storm , residents reinforced their windows with protective shutters .
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