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Chapter 3 Vocabulary
Chapter 3Vocabulary
| Term | Definition |
|---|---|
| Force | A push or pull. |
| Net Force | The sum of all the forces acting on an object. |
| Friction | The force that opposes the sliding motion of two surfaces that are touching each other. |
| Gravity | An attractive force between any two objects that depend on the masses of the objects and the distance between them. |
| Weight | The gravitational force exerted on an object. |
| Newton's First Law of Motion | States that an object moves at a constant velocity unless an unbalanced force acts on it. |
| Inertia | The tendency of an object to resist any change in its motion. |
| Newton's Second Law of Motion | States an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass. |
| Newton's Third Law of Motion | States that when one object exerts a force on a second object, the second object exerts a force on the first that is equal in strength and opposite in direction. |
| Air Resistance | A friction-like force that opposes the motion of objects that move through the air. |
| Terminal Velocity | The maximum speed an object will reach when falling through a substance, such as air. |
| Free Fall | If gravity is the only force acting on an object, it is in this. |
| Centripetal Force | A force exerted toward the center of a curved path. |
| Law of Conservation of Momentum | If no external forces act on a group of objects, their total momentum does not change. |
Created by:
19inmmor
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