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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
Nesting
Placing one programming construct inside another, such as selection inside a loop.
Nesting
Planning the arrangement of component shapes on stock material so that they fit closely together and leave as little waste as practicable.
Net
A two-dimensional arrangement of faces that can be folded to make a three-dimensional shape.
Net
A flat arrangement of faces that can be folded to form a three-dimensional solid.
Net
A flat arrangement of surfaces that can be folded to form a three-dimensional solid.
Net
A flat, two-dimensional layout that can be folded and assembled into a three-dimensional product.
Net cash flow
Total cash inflows minus total cash outflows during a period.
Net change
The overall change after all increases and decreases have been combined.
Net charge
The total charge found by combining all the positive and negative charges in a particle.
Net charge
The overall electric charge of an object after its positive and negative charges are taken together.
Net charge
The overall charge of a particle or object after its positive and negative charges are added together, taking their signs into account.
Net decline
The reduction in an emission compared with its initial value, often expressed as a fraction or ratio of the initial emission.
Net decline
The overall decrease in a quantity: its initial value minus its final value. For radioactive emission, the fractional net decline is the decrease in activity divided by the initial activity.
Net energy importer
A country that imports more energy than it exports.
Net force
The overall force after all the forces acting have been combined, taking their directions into account.
Net gas exchange
The overall gas exchange remaining after the effects of photosynthesis and respiration have both been taken into account.
Net ionic equation
An equation showing only the ions that undergo chemical change in a reaction.
Net migration
The number of people arriving to live in an area minus the number leaving it during a given period.
Net migration
The difference between the number of people immigrating and the number emigrating over a given period.
Net movement
The overall movement that remains after particle movements in opposite directions are taken into account.
Net movement
The overall movement in one direction after movement in the opposite direction has been taken into account.
Net profit
The profit remaining after operating expenses have been deducted from gross profit.
Net profit margin
Net profit expressed as a percentage of sales revenue: .
Net resistance
The resistance of a single resistor that would have the same overall effect as a group of resistors.
Net resistance
The resistance of a single resistor that would draw the same total current as a combination of resistors at the same potential difference.
Network
A set of connected computers or other devices that can communicate and share resources.
Network congestion
A situation in which demand for a network's capacity is high enough to cause delays and slower data transfers.
Network interface card
Hardware that connects a device to a network, using a wired or wireless connection.
Network interface card (NIC)
Hardware that allows a device to connect to a network.
Network interface controller/card (NIC)
Hardware in a device that enables it to connect to a network and send and receive data, using a wired or wireless connection.
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