Final answer:
Speed is the rate at which something moves, while velocity considers both speed and direction. Acceleration represents the rate of change of velocity.
Step-by-step explanation:
Speed defines the rate at which something moves. It is the distance traveled per unit of time, such as meters per second or kilometers per hour. Speed does not take into account the direction of the movement.
Velocity, on the other hand, also considers the direction of the movement. It is defined as the rate at which an object changes its position in a specific direction. Velocity is a vector quantity, meaning it has both magnitude and direction.
Acceleration refers to the rate at which an object changes its velocity. It represents how quickly the object's speed or direction changes over time. Acceleration is also a vector quantity. Time, however, is not a measure of the rate at which something moves, but rather a measurement of the duration or interval between events.
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