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forces of science
| Term | Definition |
|---|---|
| Vector | A quantity has both magnitude and direction |
| displacement | The difference between the initial or starting point and the final point |
| speed | a measure of distance you choose to describe an object travels in a given amount of time |
| velocity | the speed and direction of a moving object |
| reference point | the process of changing positions |
| position | an object's distance from a reference point |
| motion | The starting point you choose to be describe the location, position, object |
| acceleration | A measure of the change in velocity during a period of time |
| force | a push or pull on a object |
| contact force | a push or a pull on on object by another object by another object that is touching it |
| newton 2 law | law that states that the acceleration of an object is equal to the neet force exerted on the object divided by the object's mass |
| friction | a contact force that resists the sliding motion of two surfaces that are touching |
| free body diagram | a simple model to understand what happen to an object due to a force |
| net force | the combo of all forces acting on an object |
| newton 1 law | an object at rest will stay rest, and an object in motion will stay in motion unless a force acts on the object |
| Inertia | An object's ability to resist any change in motion |
| Newton's 3rd law | When an object applies a force on another object the second object applies a force of the same on the first object but the force is in the opposite direction |
| Force Pairs | the forces two objects apply to each other |
| Normal Force | the force that pushes perpendicular to the object's surface |
| Elastic Collision | when colliding objects bounce off each other |
| Inelastic Collision | a collision in which there is lost of kinetic energy |
| non-contact force | a force that one object applies another object without touching it |
| Gravity | An attractive force that exists between all objects that have mass |
| Field | a region of space that have physical quantity (such as a force) at every point |
| Weight | the gravitational force exerted on an object. |
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