Speed (English)
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Definition (keystage 2)
How fast something is moving, how fast its position is changing. Units for speed include kilometres per hour, miles per hour, metres per second.
Definition (keystage 3)
How fast something is moving; how far it travels each second. Speed does not depend on direction; speed is a scalar quantity. The vector that measures speed and direction is called velocity.
Speed has dimensions LT−1, and SI unit ms−1.
Speed has dimensions LT−1, and SI unit ms−1.
Relations
- broader:
- (en) Physical property
- referenced:
- (en) Accelerate
- (en) Mile per hour
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