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vocab
voocab
| Question | Answer |
|---|---|
| Acceleration | A measure of the change in velocity during a period of time. |
| Force | A push or a pull on an object. |
| Contact force | A push or a pull on one object by another object that is touching it |
| Newton's 2nd Law | The acceleration of an object equals the net force on the object divided by the object's mass. |
| Friction | A force that resists the sliding motion of two surfaces that are touching. |
| Free-body diagram | A simple model to understand systems of objects with any amount of applied forces. |
| Net Force | The sum of all the forces acting on an object. |
| Newton's First Law | States that an object in motion will stay in motion, and an object at rest will stay at rest unless acted on by force. |
| Newtons 3rd law | when an object applies force on another object, the second object applies a force of the same strength on the first object |
| Force pair | The forces two objects apply to each other. |
| inelastic collision | When objects collide and stick together. |
| normal force | the force that pushes perpendicular to the objects surface |
| Elastic collision | When colliding objects bounce off of each other. |
| Non-contact force | A force that one object can apply to another object without touching it. |
| Gravity | An attractive force that exists between all objects that have a mass |
| Field | A region of space that has a physical quantity (such as force) at every point. |
| Weight | The gravitational force exerted on a object. |
| Motion | The process of changing position. |
| Displacement | The difference between the initial starting point and final position. |
| Speed | A measure of the distance an object travels in a giving amount of time. |
| Velocity | The speed and direction of a moving object, |
| Vector | Quantity that has both magnitude |
| Position | An object's distance and direction from a reference point. |
| Inertia |