The Physical Setting
5.1b - The position or direction of motion
of an object can be changd by
pushing or pulling.
5.1c - The force of gravity pulls objects
towards the center of the earth.
5.1d - The amount of change in the motion
of an object is affected by friction.
5.1f - Mechanical energy may cause
change in motion through the
application of force and through the
use of simple machines such as
pulleys, levers, and inclined planes.