# Physics Notes

Document Sample

```					Conceptual Physics Notes                                Chapter 10

Center of Mass
      The average position of the particles of mass which constitute the object.
      For uniform objects, the center of mass will lie at the geometric center…
for non-uniform objects, the center of mass could lie almost anywhere.

Center of Gravity
      The average position of the weight distribution of the object.
      For most objects, the center of mass and center of gravity are at the same
point.
      An extended object acts as though the entire weight of the object is
located at the center of gravity position!

Locating Center of Gravity
       The center of gravity of any freely suspended object lies directly beneath
the point of suspension. (Balancing the object is a simple way of locating the
center of gravity.)
       The center of gravity may be a point where no mass exists. (The center of

Stability
       An object is “stable” (will not tip over by itself) if you can drop a vertical
line downward from the center of mass position and the line passes into the
ground within the perimeter of the support base of the object.
       Objects with a low center of gravity and a wide support base are most
stable.

Homework:

Day 1 (Pages 136-141)          -       1, 2, 4, 5, 6, 7, 8, 9, 25, 28, 33

Day 2 (Pages 142-146)          -       11, 12, 15, 16, 17, 19, 20, 21, 22, 29, 32

```
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
 views: 30 posted: 11/9/2012 language: English pages: 1