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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
FSC
The Forest Stewardship Council: an organisation whose certification identifies forest-based materials from responsibly managed forests or other verified sources, including recycled material.
F-scale
A standardised questionnaire developed by Adorno and colleagues to measure authoritarian attitudes associated with susceptibility to fascism.
FSH
Follicle-stimulating hormone; a pituitary hormone that stimulates an ovarian follicle containing an egg to mature.
FSH
Follicle-stimulating hormone: a hormone released by the pituitary gland that stimulates egg maturation in the ovaries.
FSH (follicle-stimulating hormone)
A hormone that stimulates a follicle containing an egg to develop in an ovary.
FSR
A force-sensitive resistor: a component whose resistance decreases as the force pressing on it increases.
FTP
File Transfer Protocol: rules for uploading and downloading files between computers over a network.
Fuel
A substance burned to release energy for heating, transport or electricity generation.
Fuel cell
A cell that produces a potential difference by reacting fuel and oxygen supplied from outside it.
Fuel cycle
The complete sequence involved in supplying and using a fuel, including its production, storage, transport and final reaction.
Fuel molecule
A substance containing stored chemical energy that can be transferred during respiration; glucose is a common example.
Fuel wood
Wood collected and burnt to provide energy, for example for cooking or heating.
Fuelwood
Wood used as a fuel.
Fugitive
An enslaved person who escaped or attempted to escape from enslavement.
Fugitive slave
An enslaved person who has escaped and is being sought for recapture.
Fulcrum
The fixed point around which a lever turns.
Fulcrum
The pivot about which a lever turns.
Fulfilment of the Law
The teaching that Jesus brings the Law of Moses and the Prophets to their intended purpose rather than simply abolishing them.
Full backup
A backup that copies all files selected for backup each time it runs.
Full employment
A situation in which almost everyone seeking work can find a job; it does not mean that nobody is unemployed.
Fullerene
A molecule made only of carbon atoms joined into a hollow shape, usually based on hexagonal rings.
Fullerene
A molecule of carbon atoms arranged in a hollow shape, with a structure based on carbon rings.
Fulling
Controlled felting of wool fabric using moisture, warmth and agitation, causing shrinkage and a denser, thicker structure.
Full life cycle
All stages associated with something, from obtaining materials and making it through its use to its final disposal.
Full mesh
A mesh network in which every device connects directly to every other device.
Full-time employment
Employment involving the normal full working week set by the employer.
Full-time work
Working the normal full working week in a business, commonly around 35–40 hours.
Full turn
One complete turn about a point, equal to .
Full twist jump
A trampolining jump in which the performer completes a 360° turn in a straight, upright position and finishes facing the same direction as at the start.
Fully displayed formula
A drawing of a molecule that shows every atom and every covalent bond, including bonds to hydrogen.
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