1. Distance and Displacement (11.1 328-331)

2. FRAME OF REFERENCE
A frame of reference is a system of objects that are not moving with respect to one another.
To describe motion accurately and completely, a frame of reference is necessary.
Refer to butterfly and flowers example on page 328 in the book.

3. Relative Motion: movement in relation to frame of reference
How fast you are moving is relative to which frame of reference you choose to measure your motion.
Relative Motion: movement in relation to frame of reference
Old book define: te object or point from which movement is determined…..

4. Are you moving too?
In a car: Do you look at the trees, the ground or the seat in front of you?
Each has a different frame of reference

5. DISTANCE Length of the path between two points
The distance to school is 4 blocks + 3 blocks + 4 blocks = 11 blocks
Measure in Meters (m) & Kilometers (km)
1 km = 1000 m
100 cm = 1 m

6. DISPLACEMENT
The direction from the starting point and the length of a straight line from the starting to end point.
It doesn’t matter what the path was…just the final result

7. Distance and displacement

8. Changing direction Vector has a magnitude AND direction
Arrows are used to show direction of a vector
ADD displacements using vector addition

9. Displacement along a straight line:
Vector Addition See fig. on pg 330
 
 
Resultant vector - the vector sum of two or more vectors.

10. Displacement that isn’t along a straight path
See figure on page 331