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GCSE Physics · key term
The distance travelled per unit of time, without a direction; measured in metres per second (m/s).
Used by AQA, Edexcel and OCR
Specification 4.5.1.1, 4.5.6.1.2, 4.5.6.1.3 · Paper 2
How fast an object is moving, without specifying a direction; it is a scalar quantity.
Revise: Scalar and vector quantitiesSpeed and velocity are similarly related. Speed tells you how fast an object moves. Velocity tells you how fast it moves in a particular direction.
How quickly an object moves, without specifying a direction.
Specification 2.4, 2.5, 2.12, 2.20, 3.2, 7.6P, 8.9, 9.2 · Paper 1, Paper 2
How fast an object moves, without specifying a direction; it is a scalar.
Revise: Recalling Vector and Scalar QuantitiesSpeed states how fast something is moving, so it is a scalar.
How fast an object is moving, without specifying a direction.
The distance travelled per unit time; its SI unit is metres per second (m/s).
A measure of how fast an object moves, without any direction.
The distance travelled per unit time, measured here in metres per second (m/s).
The distance travelled per unit time, without regard to direction.
The distance travelled per unit time, measured in metres per second (m/s).
The rate at which distance is travelled; it is a scalar quantity.
Specification P2.1b, P2.1d, P2.1h, P2.2q, P8.1a, P8.1i, P8.3f, PAG P3 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
How quickly distance is travelled; it is calculated by dividing distance travelled by time taken.
Revise: Calculating speedSpeed describes how quickly an object covers distance.
The rate at which distance is travelled; it is a scalar quantity.
The rate at which distance is travelled; it is a scalar quantity measured in metres per second (m/s).
The rate at which distance is travelled. Speed has magnitude but no direction, so it is a scalar quantity.
The distance travelled per unit time, without reference to direction. Its SI unit is metres per second ().
The distance travelled per unit time, measured in metres per second (m/s).
Distance travelled per unit time, without a direction.
Distance travelled per unit time, measured in metres per second (m/s).
Paper 1, Paper 2
The rate at which distance is travelled. It has magnitude but no direction.
Revise: Speed, Velocity and Scalar vs Vector QuantitiesTo describe an object's motion fully, ask three questions: how fast is it moving, in which direction is it travelling, and is its speed changing? This lesson focuses on the first two. Changes in speed are developed further in the lesson on acceleration.
How fast an object is moving, without a direction; it is a scalar quantity.
How quickly an object covers distance, measured in metres per second (m/s).
Do not confuse speed with velocity or distance with displacement: velocity and displacement require a direction.
Convert time to seconds before using a speed in m/s.
For a journey with changing speed, divide the total distance by the total time; do not simply average the speeds of its stages.
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