Models

Term Definition Keywords Partner
Organ transplantation Surgery in which tissue, parts of an organ or the whole organ is taken from one organism (donor) to be placed with a healing intent in another org ... ZAT
Melting of an amorphous substance Amorphous substances are characterized by the absence of strict regularity in the arrangement of their building particles with respect to each oth ... ZAT
Electrical resistance Electrical resistance is a physical quantity characterizing the ability of materials to resist the electrical current flowing through them. ... ZAT
Solid aggregate In solids, the building particles are firmly bonded to each other. They are located at close distances and are located in a strictly defined way. ... ZAT
Kinetic energy Kinetic energy is a quantity that characterizes the movement of bodies. It characterizes the ability of bodies to do work to change their speed. ... ZAT
Absolute humidity

Absolute humidity is a physical quantity, showing the mass of water vapor in 1 m³ volume of air. Or is it an analogue of air density.

ZAT
Ideal gas In the ideal gas, the forces of interaction between the particles (atoms, molecules) of the gas are neglected. When the temperature of the diluted ... ZAT
Capacitor A capacitor is a device consisting of two electrodes with a dielectric between them. It is intended for temporary storage of electric charge throu ... ZAT
Sound Sound is a longitudinal mechanical wave - the vibration of matter, which is transmitted as a periodic change in pressure (due to compression and d ... ZAT
Starting body

The body against which we determine whether a body is in motion or at rest.

ZAT
Diffusion The mutual penetration of substances due to the chaotic movement of their building particles. Diffusion is the mutual penetration of substances in ... ZAT
Solid bodies with crystal grid Substances in solid state are characterized by a crystal grid. The constituent particles in solids are bound by healthy valence chemical bonds. Th ... ZAT
Heat exchange Heat exchange is a process in which two bodies at different temperatures exchange heat. Higher-temperature body gives off heat to a lower-temperat ... heat exchange, temperature ZAT
Rectangular Coordinate System A rectangular coordinate system of space consists of three numbers intersecting each other in the coordinate origin O, which are perpendicular to ... Institut Equalita
Equation An equation is a mathematical expression consisting of two terms connected by the equal sign. The two terms are called left and right sides of the ... Institut Equalita
Rational numbers Rational numbers are obtained by combining the concept of integers with the concept of fractions and decimals. That is, the set of fractions is ex ... Institut Equalita
Thunderstorm A discharge of the air electricity of the clouds among themselves or against the earth, accompanied by lightning and thunder, usually accompanied ... Lightning thunder Institut Equalita
Solar system

The solar system is consisting of the sun, the eight planets and their moons, comets, asteroids and meteorites.

Sun, moon, planet, comet, asteroid and meteorite. Institut Equalita
Вектор Отсечка, на която единия край е приет за първи (начало), а другия за втори(край), се ... Вектор, Отсечка, Посока ZAT
Vector A segment with one end that is considered to be the first (the beginning) and the other – the second (end) is called a directed segment. The st ... vector, segment, direction ZAT
Парабола Параболата е геометрично място на всички точки от равнината, които се намират на ... Конично сечение, координати, ос на симетрия ZAT
Parabola The parabola is the geometric location of all points in the plane that are at equal distances from a fixed point F and a fixed line l in the same p ... Conical section, coordinates, axis of symmetry ZAT
Хетерополимери Високомолекулни органични съединения, изградени от свързването на различни по ... Органични съединения, Полимери, Мономерни единици ZAT
Heteropolymers

High molecular organic compounds formed by the coupling of different types of structural (monomeric) units.

Organic compounds, Polymers, Monomeric units ZAT
Ензими Ензимите са молекули, които катализират биохимичните процеси в клетката. Те са в ... Белтъци, Катализатори ZAT
Enzymes Enzymes are molecules that catalyze the biochemical processes in the cell. They are highly specific, powerful catalysts, each of which catalyzes a ... Proteins, Catalysts ZAT
Денатурация и ренатурация Денатурацията е процес на промяна на пространствената структура на нуклеиновит ... Пептидни връзки, Биомолекули, Пространствена структура на белтъците ZAT
Denaturation and renaturation Denaturation is a process of changing the spatial structure of nucleic acids and proteins under the influence of high temperature, pressure, acids ... Peptide links, Biomolecules, Spatial structure of proteins ZAT
Централен ъгъл в окръжност Ъгъл, чийто връх съвпада с центъра О на дадена окръжност, а рамената му пресичат ... Окръжност, център, ъгъл, връх ZAT
Central angle in a circle

Angle the tip of which coincides with the center O of a circle and its shoulders cross the circle at a point.

Circle, center, angle, tip ZAT
АТФ (Аденозинтрифосфат) Аденозинтрифосфат представлява химично макроергично съединение, което съдържа ... Макроергични връзки, химично съединение, енергия, химична енергия ZAT
ATP (Adenosine triphosphate) Adenosine triphosphate is a chemical macrogeneric compound that contains energy-rich bonds. It is a universal power transporter in all cells! ... Macro-grid connections, chemical compound, energy, chemical energy ZAT
Окръжност, описана около многоъгълник Описана около даден изпъкнал многоъгълник окръжност наричаме окръжността с цен ... Окръжност, Многоъгълник, радиус ZAT
A circle circumscribed around a polygon A circle circumscribed around a convex polygon, we call the circle with the center of symmetry at the sides of the polygon and radius the distance ... Circle, Polygon, radius ZAT
Respiratory chain The respiratory chain is the common path through which all the electrons originating from the most diverse nutrients in the cell are transferred t ... Electrons, aerobes, oxidation, ATP, phosphorylation Institut Equalita
Excitation An act of irritation or stimulation or of responding to a stimulus, the addition of energy, as the excitation of a molecule by absorption of photo ... nerve cells Institut Equalita
Synapse A synapse is a contact structure for transmitting a chemical or electrical signal from one nerve cell to another nerve cell (interneuronal synapse ... Nerve cells Institut Equalita
Mitosis Phase in the cell cycle in which the nucleus divides and the DNA is divided. In the subsequent cell division, the genetic material of a cell is di ... DNA, cell division, cell cycle Institut Equalita
DNA DNA: The deoxyribonucleic acid is a very large, phosphorus- and nitrogen-containing molecule that serves as a carrier of genetic information. ... dna, genetics Institut Equalita
Enzyme Enzyme, a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being alte ... enzymes, enzymology Institut Equalita
Forest ecosystem A forest ecosystem describes the community of plants, animals, microbes and all other organisms in interaction with the chemical and physical feat ... forest, ecosystem Institut Equalita
Cell The cell is a fundamental biological organizational unit from which almost of all known living beings are built. Cells are the smallest units of l ... Living beings, life Institut Equalita
Brain The portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer, and distributor of info ... central nervous system Institut Equalita
Permutation Permutation is the act of arranging the members of a set into a sequence or order, or, if the set is already ordered, rearranging ... Permutation, set RSTS
Permutācija Permutācija ir variāciju speciālgadījums, ja izlase ir tikpat liela, cik dotā kopa.   Permutācija ir galīga ... Permutation, set RSTS
Ķīmiskais līdzsvars Reaģējošu vielu sistēmas stāvoklis apgriezenisku reakciju gadījumā, kur tiešās reakcijas un pretreakcijas ātrums ir vienāds, un tāpēc ... Equilibrium, concentrations, chemical equilibrium RSTS
Density Density can be defined as the property that matter has, whether they are solids, liquids or gases, to be compressed in a given space, the amount o ... matter, solids, liquids, gases, mass, volume ALPE
Periodic system The periodic system is a tabular disposition of the chemical elements, ordered by their atomic number, electronic configurations and recurrent che ... tabular, elements, tomic number ALPE
Chemical bond

The chemical bond corresponds to the force of attraction that holds together the atoms that are part of a molecule, to achieve stability.

force, attraction ALPE
Amount of substance In every amount of a substance, there is a enormously big number on particles,  ions or molecules. In order to simplify calculation with them ... amount, number, particles ALPE
Ribosomes Ribosomes are machines responsible for the translation of the genetic code of nucleic acids (messenger RNA) into the language of proteins. The rib ... genetic doe, nucleic acids, RNA, proteins ALPE
Variācija Par variāciju no  n  elementiem pa  m  elementiem ( m≤n ) sauc sakārtotu dotās  n  elementu kopas  m elementu izlasi. ... Variation, set, sample RSTS
Variation The variation of n elements by m elements (m≤n) is called the order of m elements of the given set of n elements. Each of the t ... Variation, set, sample RSTS
Varbutiba Atrodi divos dažādos informācijas avotos šī termina definīciju un ieraksti tās šeit! ... Probability, random RSTS
Probability (2) Probability is used to indicate the degree of realization of the event or the non-realization of the degree of certainty. ... Probability, random RSTS
Varbūtība Atrodi divos dažādos informācijas avotos šī termina definīciju un ieraksti tās šeit! ... Probability, random RSTS
Probability Probability is the likelihood or chance of an event occurring. Probability is the measure of the likelihood that an eve ... Probability, random RSTS
Divu līniju pozīcija Krustiskass līnijas, ja tās krustojas vienā punktā. Ja leņķis, ko tie veido, ir 900, tiās ir perpendikulāras. P ... Line-line intersection, Euclidean geometry, intersection RSTS
Position of two lines Intersecting lines, if they intersect at a point. If the angle they form is 900, they are perpe ... Line-line intersection, Euclidean geometry, intersection RSTS
Līnijas un plaknes krustojas Atrodi divos dažādos informācijas avotos šī termina definīciju un ieraksti tās šeit! Līnijas un plakn ... Line-plane intersection, intersection, plane, three-dimensional space RSTS
Line-plane intersection In analytic geometry, the intersection of a line and a plane in three-dimensional space can be the empty set, a point, or a line. ... Line-plane intersection, intersection, plane, three-dimensional space RSTS
Funkcija Funkcija ir viena mainīgā atkarība no otra mainīgā, ja katrai neatkarīgā mainīgā vērtībai atbilst ne vairāk kā viena ... Function, input, output RSTS
Function A function is like a machine that has an input and an output And the output is related somehow to the input (source) a ... Function, input, output RSTS
Funkcijas grafiks Ja koordinātu plaknē atliek punktus, kuru abscisa ( x ) ir funkcijas arguments, bet ordināta ( y )  – atbilstošā funkcija ... Function, input, output RSTS
Function schedule If points are postponed in a coordinate plane whose abscis (x) is an argument for the function, but ordinate (y) is the correspon ... Function, input, output RSTS
Kombinācijas   Par kombinācijām no n-elementiem pa k-elementiem katrā sauc , kuros tādas nesakārtotas izlases, kas sastāv no k-elemen ... Combinations, set RSTS
Combinations Given a set of n different elements or objects. Select a subset of r elements out of n. Such selection is called the combination. A combination is ... Combinations, set RSTS
Centrālā simetrija 1. Divus punktus sauc par simetriskiem attiecībā pret punktu O, ja punkts O atrodas uz nogriežņa, kas savieno šos punktus, ... Central symmetry, plane RSTS
Central symmetry 1. A central symmetry, centered at point O, is a movement of the plane where every point P of the plane has to map to another ... Central symmetry, plane RSTS
Galvenais kvantu skaitlis Atomā elektronam piemīt tikai diskrētas enerģijas vērtības, ko sauc par elektrona enerģijas līmeņiem. To numerācijā izmanto galveno kvan ... Orbital, nucleus RSTS
The main quantum figure As it increases, the orbital becomes larger and the electron spends more time farther from the nucleus. As n increases, the electron is also at a h ... Orbital, nucleus RSTS
Ārējais fotoefekts Ārējais fotoefekts ir elektronu emisija no metāla vai tā savienojumu virsmas, ko izraisa gaismas kvanti. Ir nepieciešams noteikts enerģijas ... Electrons,metals,energy RSTS
Photoelectric effect Photoelectric effect happens when electrons are emitted from matter such as metals. It takes a certain amount of energy for an electron to escape ... Electrons,metals,energy RSTS
Emisija Emisija - elektromagnētiskā starojuma izstarošana vai dažādu daļiņu (visbiežāk elektronu) izsviešana no dažādiem materiāliem. ... Electromagnetic waves RSTS
Solid of revolution A solid of revolution is a solid figure obtained by rotating a plane curve around some straight line (the axis of revolution) that lies on the sam ... figure, plane ALPE
Cartesian coordinate system It is a reference system formed by two axes perpendicular to each other that are cut at a point called the origin of coordinates. Thus, each point ... axes, coordinates ALPE
Emission

Emission – the flow of electromagnetic waves or the ‘throwing out’ particles (mostly electrons) from different matters.

Electromagnetic waves RSTS
Atmosfēras spiediens Atmosfēras spiediens ir Zemes atmosfēras hidrostatiskais spiediens, kas rodas, Zemes gravitācijas dēļ gaisam pievelkoties pie Zemes virsmas. A ... Force, area, weight RSTS
Matrix Is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. The individual items are called elements or entries. ... array, rows, columns ALPE
Atmospheric pressure Atmospheric pressure is the force per unit area exerted into a surface by the weight of air above that surface in the atmosphere of Earth (or that ... Force, area, weight RSTS
Absorbcija Absorbcija ir gaismas intensitātes vājināšanās, kas notiek, tai ejot caur kādu vidi (vielu). Vairumā gadījumu ķermeņa spēja absorbēt ga ... intensity RSTS
Integral An integral is a generalization of the sum of infinite summands, infinitely small. In the case of the defined integral, this sum of infinite infin ... sum, infinite, summands ALPE
Straight lines that are secant or cross A straight line is secant to another when it has non-empty intersection with it. Two straight lines cross when they are not parallel and they are ... secant, intersection ALPE
Absorption Light passing through an optical system can be attenuated by absorption and by scattering. Light apsorption is a physical process during which the ... intensity RSTS
Chord and arc of a circumference A chord is a segment that joins two points in a circumference. An arc is each one of the parts of the circumference in which it is divided by two ... segment, points ALPE
Chemical equilibrium In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations, which have no fur ... Equilibrium, concentrations, chemical equilibrium RSTS
Sublimācija

Sublimācija ir vielas tieša pāreja no cietās vielas uz gāzes fāzi, nenonākot caur starpposma šķidruma fāzi.

Substance, sublimation, gas phase, liguid phase RSTS
Sublimation Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.   ... Substance, sublimation, gas phase, liguid phase RSTS
Izomērija Ķīmijā izomēri ir joni vai molekulas ar identiskām formulām, bet atšķirīgas struktūras. Izomēriem ne vienmēr ir līdzīgas īpašības. ... Isomery, ions, molecule RSTS
Isomery In chemistry, isomers are ions or molecules with identical formulas but distinct structures. Isomers do not necessarily share similar propert ... Isomery, ions, molecule RSTS
Jonu saite Jonu saites definīcija ir tad, kad pozitīvi uzlādēts jons veido saiti ar negatīvi uzlādētiem joniem un viens atoms nodod elektronus citam. ... Ion, bond, atom, electrons RSTS
Ionic bond The definition of ionic bond is when a positively charged ion forms a bond with a negatively charged ions and one atom transfers electrons ... Ion, bond, atom, electrons RSTS
Indikators Ķīmiskais indikators ir jebkura viela, kas, parasti pēc krāsas maiņas, norāda uz ķīmiskās vielas klātbūtni, piemēram, skābju vai sārm ... Indicators, concentration, substance RSTS
Indicator Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration o ... Indicators, concentration, substance RSTS
Hidrolīze Hidrolīze, kas ir pretējs kondensācijai, ir ķīmiska reakcija, kurā ūdens sadalās citā savienojumā un maina savu sastāvu. Lielākā daļa ... Reaction, condensation, molecules, acid, base RSTS
Hydrolysis Hydrolysis, the opposite of condensation, is a chemical reaction in which water breaks down another compound and changes its makeup. Most instances ... Reaction, condensation, molecules, acid, base RSTS
Esterifikācija Esterifikācija ir ķīmiska reakcija, kas veido vismaz vienu esteri (= savienojuma veids, kas iegūts, reaģējot starp skābēm un spirtiem). Est ... Reaction, ester, acid, alcohols RSTS
Esterification Esterification is chemical reaction that forms at least one ester (= a type of compound produced by reaction between acids and alcohols). Esters ar ... Reaction, ester, acid, alcohols RSTS
Aminoskābe Aminoskābe - jebkurš no daudziem savienojumiem, kas atrodami dzīvās šūnās, kas satur oglekli, skābekli, ūdeņradi un slāpekli, un apvieno ... Amino acids, cell, protein, amino group, carboxyl group RSTS
Amino acids Amino acid - any of a large number of compounds found in living cells that contain carbon, oxygen, hydrogen, and nitrogen, and join together to for ... Amino acids, cell, protein, amino group, carboxyl group RSTS
Skābes/bāzes indikators Skābes bāzes indikators (pazīstams arī kā pH indikators) ir vielas, kas maina krāsu ar pH. Tās parasti ir vājas skābes vai bāzes.  ... Indicators, substance, acid, base RSTS
Acid / base indicator Acid - base indicators (also known as pH indicators) are substances which change color with pH. They are usually weak acids or bases.   ... Indicators, substance, acid, base RSTS
Kovalentā saite Kovalentā saite, saukta arī par molekulāro saiti, ir ķīmiska saite, kas ietver elektronu pāru apmaiņu starp atomiem. Šie elektronu pāri ir ... molecular bond, chemical bond, electron, atom, repulsive forces RSTS
A covalent bond A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs a ... molecular bond, chemical bond, electron, atom, repulsive forces RSTS
An electron shell (2)

An electron shell is a grouping of electrons surrounding the nucleus of an atom.

 

EuroEd
An electron shell An electron shell is a grouping of electrons surrounding the nucleus of an atom.   ... EuroEd
Proton Neutron Electron A proton is an atomic particle that has a positive electrical charge. A neutron is very small piece of matter, i.e. substance, that carries no el ... EuroEd
Catalyst (2) A catalyst is a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower tempera ... EuroEd
Catalyst A catalyst is a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower tempera ... EuroEd
Isotopes (2) Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical prope ... EuroEd
Isotopes An isotope is the form of an atom which has a different atomic weight from other forms of the same atom, but the same chemical structure, two or mo ... EuroEd
Isotopes (3) An isotope is the form of an atom which has a different atomic weight from other forms of the same atom, but the same chemical structure (two or mo ... EuroEd
Ordinary fractions An ordinary fraction is a pair (a, b) of two natural numbers a and b, with b different by 0. The ordinary fraction is written a/b where a is the nu ... EuroEd
Associativity An operation on a set of elements giving an equivalent expression when elements are grouped without change of order, as (a + b) + c = a + (b + c) ... EuroEd
Commutativity The "Commutative Laws" say one can swap numbers over and still get the same answer  when it  adds (a + b  =  b + a) or multiplies  (a × b  = ... EuroEd
Parallel lines Parallel lines are two lines that are always at the same distance and never touch.   ... EuroEd
Diffusion

Diffusion is the net movement of molecules or atoms from a region of higher concentration

EuroEd
Inclined plane An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for r ... EuroEd
The First Law of Thermodynamics Also known as the Law of Conservation of Energy, the First Law of Thermodynamics states that, “energy cannot be created or destroyed in an isolat ... EuroEd
Kirchhoff's Loop Law (Voltage Rule)

The law states that the sum of all the voltages in a circuit is zero. Vrise-Vdrop = 0. V4-V3-V2-V1=0. 

 

EuroEd
Kirchhoff's first law (junction law) The numeric value of the currents that enter the node is equal to that of the currents that exit the node. A node is any point in a circuit in wh ... EuroEd
Hooke's Law Hooke’s Law states that, “the strain in a solid is proportional to the applied stress within the elastic limit of that solid.” The law and fo ... EuroEd
Power A physical quantity that is determined by the rate of work transferred per unit time. Unit of measure  or W (1Joul per second or 1Watt) Th ... EuroEd
Nuclear fission Nuclear fission is either a  nuclear reaction or a radioactive decay process in which the nucleus  of an atom splits into smaller parts. The fiss ... EuroEd
Force A force is any interaction that, when unopposed, will change the motion of an object.A force is a push or pull upon an object resulting from the ob ... EuroEd
Dispersion of light The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours (i.e. violet, indigo, blue, gree ... EuroEd
Tissue (2) A tissue is an aggregate (set) of interdependent cells in an organism that have similar origin, shape, structure and function. ... EuroEd
Tissue A tissue is an aggregate (set) of interdependent cells in an organism that have similar origin, shape, structure and function.   ... EuroEd
Pollination (3) Pollination is the transfer (natural or artificial) of pollen of the stamina to the stigma of another plant to produce fecundation.   ... EuroEd
Nerve The nerve conducts nerve impulses in organism. It is a category of filamentous bands of  nervous tissues that connects parts of the nervous system ... EuroEd
Heredity Heredity is individuals’ characteristic to acquire the genetic information (nucleic acids) of their parents and to pass it on to their descendant ... EuroEd
Nucleic acids DNA (2) Nucleic acids are macromolecules (consisting of chains of nucleotides) containing the biochemically codified genetic information of a living thing. ... EuroEd
Nucleic acids DNA Nucleic acids are macromolecules (consisting of chains of nucleotides) containing the biochemically codified genetic information of a living thing. ... EuroEd
Metabolism Metabolism is the process involving a set of constructive (anabolism) or distructive (catabolism) chemical reactions that modifies a molecule into ... EuroEd
Trophic chain Trophic chain is a series of organisms interrelated in their feeding habits in an ecosystem in which each species is the food of the next member of ... EuroEd
Kirchhoff's Junction Law The law states that sum of the currents coming into a junction has to equal the sum of the currents going out. Essentially, it is an application of ... EuroEd
Symbiosis Symbiosis isinteraction between two different organisms living in close physical association, typically to the advantage of both. It is a mutually ... EuroEd
Pollination (2) Pollination is the transfer (natural or artificial) of pollen of the stamina to the stigma of another plant to produce fecundation.   ... EuroEd
Pollination Pollination is the transfer (natural or artificial) of pollen of the stamina to the stigma of another plant to produce fecundation.   ... EuroEd
IMMUNITY (2) It is the process by which phagocytes engulf and break down bacteria or particles. Phagocytes are cells which have the ability to destroy germs, ba ... EuroEd
Immunity It is the condition of the vegetal, animal or human organism to resist a particular disease especially by preventing the development of a pathogeni ... EuroEd
Cations Cations are atoms or radicals (groups of atoms), that have lost electrons. Since they now have more protons than electrons, cations have a positive ... PGAZ
Anions Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative ... PGAZ
Substitution reaction Substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one function ... PGAZ
Diffusion Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gas ... PGAZ
FIRST PRINCIPLE OF THE MECHANICS An object keeps its state as long as there is no force which acts upon it. The state of the body can be either stationary or moving with constant s ... PGAZ
SECOND PRINCIPLE OF THE MECHANICS For a given body with mass, the resultant force F [N] acting on the body is equal with the product between the mass m [kg] and the body’s acceler ... PGAZ
Conductors, insulators, and semiconductors Materials are classified as conductors, insulators, or semiconductors according to their electric conductivity. A conductor is an object or type ... PGAZ
A spring pendulum A spring pendulum (also called elastic pendulum or swinging spring) is a physical system where a piece of mass is connected to a spring so that the ... PGAZ
Pascal's principle Pascal's or the principle of transmission of fluid-pressure  is a principle in fluid mechanics given by Blaise Pascal that states that a press ... PGAZ
Electric circuit (2) Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constitu ... PGAZ
Electric circuit Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constitu ... PGAZ
Equilibrium Equilibrium, in physics, the condition of a system when neither its state of motion nor its internal energy state tends to change with time. A simp ... PGAZ
Electromagnet Electromagnet, device consisting of a core of magnetic material surrounded by a coil through which an electric current is passed to magnetize the c ... PGAZ
Pulley Pulley, in mechanics, a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to tr ... PGAZ
Magnet Magnet, any material capable of attracting iron and producing a magnetic field outside itself. By the end of the 19th century all the known element ... PGAZ
Semiconductors Semiconductor, any of a class of crystalline solids intermediate in electrical conductivity between a conductor and an insulator. Semiconductors ar ... PGAZ
Light refraction Light rays change direction when they reflect off a surface, move from one transparent medium into another, or travel through a medium whose compos ... PGAZ
Magnetic effect of electric current The electricity and magnetism are linked to each other and it is proved when the electric current passes through the copper wire, it produces a mag ... PGAZ
Balancing a rigid body Equilibrium, in physics, the condition of a system when neither its state of motion nor its internal energy state tends to change with time. A simp ... PGAZ
Center of mass The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, wei ... PGAZ
Electric circuits Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constitu ... PGAZ
Chemical reactions. Signs of chemical reactions Chemical reactions are the processes by which chemicals interact to form new chemicals with different compositions. Simply stated, a chemical react ... PGAZ
Electrolytes and conduct electricity electrolytes Electrolytes are composed of free moving Charged Particles, i.e. ions. When a pd is applied across the electrolytes, the +ve ions move towards the ... PGAZ
Distillation Distillation is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation. Distillat ... PGAZ
Electrolytes, Battery An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved ele ... PGAZ
Electrolysis Electrolysis is the chemical process of using an electrical current to stimulate non-spontaneous reactions. A non-spontaneous reaction is one th ... PGAZ
Similar figures Two geometrical objects are called similar if they both have the same shape,or one has the same shape as the mirror image of the other. More precis ... PGAZ
Geometric progression Geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying th ... PGAZ
Arithmetic progression Arithmetic progression (AP) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is consta ... PGAZ
Permutation Permutation is the act of arranging the members of a set into a sequence or order, or, if the set is already ordered, rearranging (reorde ... PGAZ
Axis of symmetry

Any of one or more linesabout which a geometric figure is symmetric.

PGAZ
Acid / base indicator Acid - Base indicators (also known as pH indicators) are substances which change colour with pH. They are usually weak acids or bases, which when d ... PGAZ
Osmosis Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, ... PGAZ
Diffusion Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gas ... PGAZ
LAW OF ARCHIMEDES Archimedes' principle states that: "If a solid body floats or is submerged in a liquid - the liquid exerts an upward thrust force - a buoyant ... PGAZ
FIRST PRINCIPLE OF THE MECHANICS An object keeps its state as long as there is no force which acts upon it. The state of the body can be either stationary or moving with constant s ... PGAZ
Friction Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Ins ... PGAZ
Friction Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Ins ... PGAZ
THIRD PRINCIPLE OF THE MECHANICS (2) If a given body exerts a force on a second body, the second body will exert in the same time a force equal in magnitude and opposite in direction o ... PGAZ
THIRD PRINCIPLE OF THE MECHANICS If a given body exerts a force on a second body, the second body will exert in the same time a force equal in magnitude and opposite in direction o ... PGAZ
Conic sections Conic sections are flat curves obtained by the intersection of a cone and a plane. The angle that forms the plane and the axis of the cone compare ... curves, intersection, cone, plane ALPE
Square root of a number The square root of a real nonnegative number x is the real number that, multiplied by itself (or equivalent, raised to the second power), gives th ... nonnegative, exact, perfect ALPE
Prime number

Is a number that only has two factors, 1 and the number itself. If a number has more than two factors, it is called composed number.

number, factors ALPE
Least common multiple (lcm)

The least common multiple of two or more positive integers is the lowest positive integer that is multiple of all of them.

integer, lowest, multiple ALPE
Highest common factor (hcf)

The highest common factor of two or more positive integers is the greatest possible divisor of all of them.

integer, greatest, divisor ALPE
Factorization The factorization or decomposition of a number in prime factors is the process of decomposing the number as a product of prime numbers and powers ... decomposition, prime number, unique ALPE
Addition of monomials We can add two monomials as long as they are similar monomials. In order to do the operation we will add the coefficients of each monomial and we ... monomial, coefficients ALPE
Polynomial A polynomial is an algebraic expression formed by the addition or subtraction of several non-similar monomials, called terms of the polynomial. Th ... addition, subtraction, monomial, degree ALPE
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