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. Her final displacement is ______ from the starting point.
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….