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DO NOW

DO NOW. Q1. Which car is moving at constant speed? Q2. Which car is not moving? WHY? Q3. Which car is accelerating? WHY?. DO NOW. Q1. Which car is moving at constant speed? B (straight line) Q2. Which car is not moving? WHY? a (distance does not change over time)

arthur-murray
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DO NOW

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  1. DO NOW Q1. Which car is moving at constant speed? Q2. Which car is not moving? WHY? Q3. Which car is accelerating? WHY?

  2. DO NOW Q1. Which car is moving at constant speed? B (straight line) Q2. Which car is not moving? WHY? a (distance does not change over time) Q3. Which car is accelerating? WHY? Curved line

  3. Today’s SLO’S 1. Define acceleration 2. Interpret speed versus time graphs for movement 3. Plot distance and speed versus time graph

  4. Read NMS2 pg 30-31 Answer all the questions + stretch yourself

  5. NMS2 pg 30-31 (Answers)Acceleration P.30/31 • The change in speed (m or Km) over time (sec or h). • N/A • (a) constant speed (b) constant (uniform) acceleration • See next slide

  6. Rachel and Stephen are moving with a constant speed since the slope of the line is constant. Rachel – 5 ms-1; Stephen – 3 ms-1; Kepa is accelerating. The slope is increasing so her speed is increasing.

  7. Rachel – Constant speed of 7 ms-1 for 3 s then a constant deceleration to rest in a further 7 s. Stephen – Constant acceleration from rest to 10 ms-1 in 10 s. Kepa – Constant acceleration from rest to 10 ms-1 in 5 s followed by a constant deceleration to rest in a further 5 s.

  8. Video:http://www.youtube.com/watch?v=eSJ-HzNWJGM

  9. HOMEWORK: • Pg 26-27 Workbook (WB) • Due Fri 7/05/10

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