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In the second half of 2021, the physical knowledge points of subject knowledge of Gansu Teachers' Qualification Examination: speed and speed

Source: Gansu Education Information Network Time: 2021-07-16 10:27:44

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1. Speed: The instantaneous speed is called speed.

2. Difference between speed and rate: speed is vector, and rate is scalar; The speed only reflects the speed of the movement of the object, while the speed reflects the speed and direction of the movement at the same time.

3. Discrimination between average speed and average speed

 Teaching material written examination physics knowledge points: speed and speed

(Editor in charge: Gansu Zhonggong Education)

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