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Unit 3 Chapter 16
Force and Newton's Laws
| Definition | Term |
|---|---|
| The speed and direction of a moving object. | Velocity |
| A push or a pull. | Force |
| The combination of all forces acting on an object. | Net force |
| Two or more forces whose effects cancel each other out and do not change the motion of an object. | Balanced forces |
| Two or more forces acting on an object that do not cancel, and cause the object to accelerate. | Unbalanced forces |
| 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 first law of motion |
| A force that acts to oppose sliding between two surfaces that are touching. | Friction |
| The change in velocity divided by the time over which the change occurred. | Acceleration |
| 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 second law of motion |
| A measurement of force that depends on gravity. | Weight |
| Point in an object that moves as if all of the object's mass were concentrated at that point. | Center of mass |
| Forces always act in equal but opposite pairs. | Newton's third law of motion |
Created by:
rwaters
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