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Published byAnthony Walsh Modified over 8 years ago

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Science Starter! Complete the worksheet “Science Starter!” (on teacher’s desk).

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Analyzing “x vs. t” graphs 1. What is the total distance traveled by the object from t= 0s to t = 30 s? (A) 30 m (B) 0 mTOTAL = 50 m (C) 20 m 2. What is the displacement of the object from t= 0s to t = 30 s? t = 0s: object is at 0 m t = 30s: object is at 10 m Δ x = x – x o Δ x = 10 – 0 = + 10 m

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Average Speed On the graph shown, determine the average speed from t = 0s to t = 30s.

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Average Velocity On the graph shown, determine the average velocity from t = 0s to t = 30s.

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Average Velocity (Slope Method) On the graph shown, determine the average velocity from t = 0s to t = 30s. 2. Find the slope of this line: (10 – 0) m = + 0.33 m/s (30 – 0) s 1.Draw a line connecting the two points.

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1.Describe the motion depicted in this particle model. 2.Create a data chart and graph the motion shown. Time (s) Distance (m) 00 12.5 27.5 317.5 432.5 555

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Acceleration Rate at which the velocity of an object changes. Vector Symbol: “a” Unit: m/s 2

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Key Ideas to Remember On a “Position vs. Time” graph: ∙ Linear Line: Constant Velocity - Positive Slope: Moving in (+) Direction (forward) - Negative Slope: Moving in (-) Direction (backward) - Zero Slope: Not Moving (stopped) * Speed: Distance / Time * Velocity: Displacement / Time - Average Velocity: Slope between any two points - Must include either (+) or (-) ∙ Curved Line: Acceleration

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