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Science Starter!

Science Starter!. 1. Describe the motion from: 0s – 4 s 4s – 8s 8s – 12s Find the velocity of the object from t = 8 s to t = 12 s. What is the total distance t raveled by the object? 4. What is the displacement of the object?. 1. a) 0s – 4 s  STOPPED

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Science Starter!

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  1. Science Starter! 1. Describe the motion from: • 0s – 4 s • 4s – 8s • 8s – 12s • Find the velocity of the object from t = 8 s to t = 12 s. • What is the total distance traveled by the object? 4. What is the displacement of the object?

  2. 1. a) 0s – 4 s  STOPPED b) 4s – 8s  Constant Velocity (FORWARD) c) 8s – 12s  Constant Velocity (BACKWARD) 2. Find slope: (10 – 50) m = - 10 m/s (12-8) s 3. 50 m 4. - 30 m

  3. Analyzing “x vs. t” graphs 1. What is the total distance traveled by the object from t= 0s to t = 30 s? 30 m 0 m TOTAL = 50 m 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 – xo Δ x = 10 – 0 = + 10 m

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

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

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

  7. Describe the motion depicted in this particle model. • Create a data chart and graph the motion shown.

  8. Acceleration Rate at which the velocity of an object changes. Vector Symbol: “a” Unit: m/s2

  9. 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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