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Mission KG2 Shape and Slope of Position-Time Graphs

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 The Question

The motion of an object is depicted by a position-time graph. Various time intervals during the motion are depicted by a letter. During which time interval(s) is the object speeding up? List all that apply ... .

 Physics Rules

Position-Time Graphs:
Position versus time graphs represent changes that occur in an object's position with respect to time. The slope of the line is the velocity (change in position divided by the change in time) of the object.

 Minds On Time

The slope of the line represents the velocity of the object. The velocity is the speed with a direction. So the magnitude of the slope is the speed of the object. An object that is speeding up is an object with an increasing speed. Thus, this question is asking you to identify the section of the graph which has an increasing slope. So inspect each section to find any and all sections that change from a small slope (flat) to a larger slope (steep).

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