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Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Limited perspective
Third-person narration that mainly restricts the reader to the knowledge and experience of a particular character.
Limited resource
A natural resource available in limited amounts that cannot be replaced as quickly as it is used.
Limited resource
A resource with a finite supply that is not replenished as quickly as it is used.
Limited war
Keeping a conflict restricted in its aims, geographical extent or weapons, rather than pursuing victory by every available means.
Limiting factor
A condition that restricts the rate of a process because it is in insufficient supply or is at an unsuitable level.
Limiting factor
A condition that restricts the rate of a process; improving that condition increases the rate until another condition becomes limiting.
Limiting reactant
The reactant that is completely used up in a reaction and therefore determines the maximum amount of product that can form.
Limiting reactant
A reactant that is completely used up in a reaction and therefore limits the maximum amount of product that can form.
Limiting value
A number that the terms of a sequence approach arbitrarily closely and remain close to as the term number increases without bound.
Limit of accuracy
A restriction on the possible value of a quantity caused by the accuracy with which it was recorded.
Limit of proportionality
The point beyond which extension is no longer directly proportional to the applied force.
Limit of proportionality
The point beyond which extension is no longer directly proportional to the applied force.
Limits of accuracy
The smallest and greatest boundaries consistent with the stated accuracy of a rounded measurement.
Lincolnshire Rising
A rebellion beginning at Louth in October 1536 against religious changes and other grievances, which dispersed after Henry VIII demanded surrender and a royal army assembled.
Line
A straight one-dimensional object that continues without end in both directions.
Lineage
A family's line of descent through successive generations.
Linear B
A writing system used to record an early form of Greek, surviving chiefly on clay tablets concerned with Mycenaean palace administration.
Linear circuit element
A circuit element whose current–potential difference graph is a straight line through the origin, showing a constant ratio of potential difference to current.
Linear circuit element
A circuit component whose current–potential difference graph is a straight line over the range being considered.
Linear component
A component whose current–potential difference graph is a straight line through the origin, showing constant resistance under the conditions tested.
Linear correlation
An association between two variables in which the points on a scatter diagram follow a straight-line pattern.
Linear elastic distortion
A distortion in which extension is directly proportional to the applied force.
Linear equation
An equation in which the unknown has highest power 1.
Linear factor
A degree-one expression, such as or , which multiplies another polynomial to give the original polynomial exactly.
Linear force–extension relationship
A relationship in which force is proportional to extension, producing a straight force–extension graph through the origin.
Linear function
A rule such as whose graph is a straight line.
Linear graph
A straight-line graph, such as the graph of .
Linear inequality
An inequality in which each variable has highest power 1 and variables are not multiplied together.
Linear interpolation
A method of estimating a value within an interval by assuming the observations are evenly spread across that interval.
Linear model of communication
A one-way account of communication in which a sender transmits a message to a receiver, without a feedback loop.
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