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Definitions
| Question | Answer |
|---|---|
| is the difference between the initial, or starting, position and the final position | displacement |
| is a measure of the distance an object travels in a given time | speed |
| is the speed and direction of a moving object, velocity is referred to as vector | velocity |
| is a quantity that has both magnitude and direction | vector |
| is the strongest point you chose to describe the location, or position of an object | reference point |
| is an objects distance and direction from a reference point | position |
| the process of changing motion | motion |
| is a measure of the change when its velocity during a period of time | acceleration |
| is a push or pull on a object | force |
| is a push or a pull on one object by another object that is touching | contact force |
| states that the acceleration of an object equals the net force on the object divided by the object's mass | newton's 2nd law, |
| is a force that resist the sliding motion of two surfaces that are touching | friction |
| is a simple model to understand system of objects with any amount of applied forces | free-body diagram |
| is the sum of all the force acting on an object. | net force |
| states that an object in motion will stay in motion, and an object as rest will stay at rest unless acted on by a force | Newton's first law |
| an objects ability to resist any change in motion | inertia |
| states that when another object, the second object, apples force on the same strength on the first object, but the opposite direction | newtons 3rd law |
| is the forces two objects apply to each other | force pairs |
| is the force that pushes perpendicular to the objects surface | normal force |
| is objects collide and stick together, such as when one footballer tackles another the collision is elastic | elastic force |
| when two surfaces stick together | inelastic force |
| is a force that one object can apply yo another object without touching | noncontact force |
| gravity is active force that exist between all objects that have mass | gravity |
| is a region of space that has a physical quantity (such as force) at every point | field |