force and motion
DESCRIPTION
Force and Motion. Force. A push or a pull. Now I’m in St. Louis. I was in Kansas City. Motion. A change in position. Frame of Reference. All the things around you that help you describe motion. When you watch a runner he is moving, but the trees behind him are not. - PowerPoint PPT PresentationTRANSCRIPT
All the things around you that help you describe motion.
When you watch a runner he is moving, but the trees behind him are not.
When you are the runner everything you pass seems to be moving.
Motion that is described based on a frame of reference.
Relative to the trees the runners are moving.
The trees are also moving because of the Earth’s rotation, but they don’t seem to be moving because there is no frame of reference.
How fast something is moving-the measure of an object’s change in position during a unit of time.
I can go 100 miles per hour (MPH) if I
want to.