Presentation on theme: "Position and Motion New and Improved!. What is motion? Motion is when an object changes position. How do you know that the racecar moved? –It changed."— Presentation transcript:
How can you tell something has changed position? In order to see if something has changed position (motion) you need a reference point. –For example, the starting or finishing line of a racetrack.
What is distance? Easy question! Distance is how far an object has moved. We measure distance in METERS!
What is displacement? Suppose a runner jogs north to the 50-m mark and then turns around and runs back south 30-m. What is the total distance? 80-m Two directions - north and south. But what do you think the runners displacement is?
What is the difference between distance and displacement? Distance is how far something has moved. Displacement is the difference between the first and final position.