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Motion

Motion. What is Motion?. any physical movement or change in position or place, relative to a reference point . Movement. Reference Point. Distance = how far an object has moved. Measured in meters, kilometers (cm or mm).

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Motion

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  1. Motion

  2. What is Motion? any physical movement or change in position or place, relative to a reference point  Movement Reference Point

  3. Distance = how far an object has moved. Measured in meters, kilometers (cm or mm) If each mark represents 10 cm, what is the distance between the girl and the ball?  ______ Y Axis X Axis

  4. If the girl walks to the red ball, then walks backwards to the bear, how far has she traveled?   ______ Y Axis X Axis Displacement = the distance of a body's change in position from a starting point.   Her final displacement is   ______ from the starting point.

  5. Speed = the distance an object travels per unit of time  (sec, hour, year..etc) Speed Equation Speed (meters/second)  =  distance (in meters)                                                   time (sec)   s = d                            t

  6. A car travels a distance of 500 m in 10 sec.  What is the car's speed? s = d/t A second car travels a distance of 100 meters in 20 seconds.  What is this car's speed?  

  7. More practice.  (Speed = distance/ time) An elevator travels from the first floor to the 25th floor of a building, a distance of 100 meters, in 30 seconds.  What is the elevator's speed? Distance = ______ Time = _______ Speed =  _______

  8. Constant Speed vs Changing Speed  Constant speed means that the speed stays the same throughout the entire distance *Very few things can stay at a constant speed.  Rather, things usually move at a constant speed for a period of time.  The cyclist speeds up, slows down, stops..etc

  9. Speed and the Two-Step Objective:  In this lab, you will measure and graph your speed and acceleration as you walk from one point to another.  Step 1:  Marking Your Space. Step 2:  Speed of a Shuffle Step 3:  Speed of a Heel-to-Toe Walk Step 4:  Normal Walk Switch partners and time again….

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