5. 1. An object at rest stays at rest and an object
in motion stays in motion with the same speed and in the
same direction unless acted upon by an unbalanced
force.
6. The acceleration of an object depends directly upon the net
force acting upon the object, and inversely upon the mass of
the object. As the force acting upon an object is increased,
the acceleration of the object is increased. As the mass of
an object is increased, the acceleration of the object is
decreased.
7.
8. States that when two bodies interact, they apply forces to
one another that are equal in magnitude and opposite in
direction. The third law is also known as the law of action
and reaction.
9. Force is also the cause of motion. If something is moving,
force must be acting on it.
10.
11. Force can …
1. move an object.
2. stop moving object.
3. change the speed.
4. change the direction.
5. change the shape and size of an object.