Unit III Vocabulary | Vocab Set #1 | Vocab Set #2 | Vocab Set #3 | Vocab Set #4

 

Vocabulary Set #2

Balanced Forces: two or more forces whose effects cancel each other out and do not change the motion of an object.

Center of Mass: point in a bject that moves as if all of the object's mass were concentrated at that point.

Force: a push or a pull.

Friction: a force that acts to oppose sliding between two surfaces that are touching.

Net Force: combination of all forces acting on an object.

Newton's 1st Law of Motion: states that if the net force acting on an object is zero, the object will remain at rest or move in a straight line with a constant speed.

Newton's 2nd Law of Motion: states that an object acted upon by a net force will accelerate in the direction of the force, and that the acceleration equals the net force divided by the object's mass.

Newton's 3rd Law of Motion: states for every action there is an opposite and equal reaction.

Unbalanced Forces: two or more forces acting on an object that do not cancel, and cause the object to accelerate.

Weight: is mass x gravity