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Ch. 10 Motion

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Ch. 10 Motion

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    1. Ch. 10 Motion I. Describing Motion Motion Speed & Velocity Acceleration

    2. A. Motion Problem: Is your desk moving? We need a reference point... nonmoving point from which motion is measured

    3. A. Motion Motion Change in position in relation to a reference point.

    4. A. Motion Problem: You are a passenger in a car stopped at a stop sign. Out of the corner of your eye, you notice a tree on the side of the road begin to move forward. You have mistakenly set yourself as the reference point.

    5. B. Speed & Velocity Speed rate of motion distance traveled per unit time

    6. B. Speed & Velocity Instantaneous Speed speed at a given instant Average Speed

    7. B. Speed & Velocity Problem: A storm is 10 km away and is moving at a speed of 60 km/h. Should you be worried?

    8. B. Speed & Velocity Velocity speed in a given direction can change even when the speed is constant!

    9. C. Acceleration Acceleration the rate of change of velocity change in speed or direction

    10. C. Acceleration Positive acceleration speeding up

    11. D. Calculations

    12. D. Calculations

    13. D. Calculations

    14. D. Calculations

    15. E. Graphing Motion slope = steeper slope = straight line = flat line =

    16. E. Graphing Motion Who started out faster? A (steeper slope) Who had a constant speed? A Describe B from 10-20 min. B stopped moving Find their average speeds. A = (2400m) (30min) A = 80 m/min B = (1200m) (30min) B = 40 m/min

    17. E. Graphing Motion Acceleration is indicated by a curve on a Distance-Time graph. Changing slope = changing velocity

    18. E. Graphing Motion slope = straight line = flat line =

    19. E. Graphing Motion Specify the time period when the object was... slowing down 5 to 10 seconds speeding up 0 to 3 seconds moving at a constant speed 3 to 5 seconds not moving 0 & 10 seconds

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