Newton's First Law of Motion
A Middle School Level Website
Web-Science.net
Arizona Science Standards Grade 8, Strand 5, Concept 2, PO2: Identify the conditions under which an object will continue in its state of motion.
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
An object at rest will remain at rest
| - or - |
an object in motion will remain in motion
| unless |
acted upon by an outside force
Example: A book resting on a shelf will
remain on that shelf unless acted upon
by an outside force. For example, a
tornado may come and move the shelf
or you may come along and remove
the book.
remain on that shelf unless acted upon
by an outside force. For example, a
tornado may come and move the shelf
or you may come along and remove
the book.
An object in deep space should continue
in a straight line at the same speed.
in a straight line at the same speed.
This force will change the "state of
motion" of the object. If the object was
at rest, it will now be in motion with a
direction. If it was already in motion,
either the direction or the velocity, or
both, could be changed.
motion" of the object. If the object was
at rest, it will now be in motion with a
direction. If it was already in motion,
either the direction or the velocity, or
both, could be changed.
Newton's First Law of Motion: link to more indepth explanation and practice problems.