Question | Answer |
Position (x) | An object's location at any given time. |
Delta | Greek symbol: meaning "change in". |
Distance (d) | How much an object's position changes. |
Reference Point | A specific location used to monitor change of position. |
Motion | The act of changing position. |
Potential Energy | Energy that can be stored. |
Speed (v) | How far an object travels in a given amount of time. |
Leg | A segment of a complex motion or trip. |
Displacement | The amount and DIRECTION of a change of position between an object's initial position and final position. |
Velocity | Change of position divided by change in time. |
Acceleration (a) | Change in velocity divided by a change in time. |
Force | A push or pull that acts on an object. |
Newton | Unit used to measure force, amount of force that will move 1kg of mass 1m |
Net Force | The total (sum) of all the forces acting on an object. |
Balanced Forces | Forces that cancel each other out. |
Unbalanced Forces | Forces that do not cancel each other out. |
Friction | A force that acts between two surfaces that come in contact with each other. |
Sliding Friction | Friction between two solid surfaces. |
Rolling Friction | Friction that occurs when one of the two surfaces in contact rolls. |
Fluid Friction | Friction that occurs when one of the two surfaces in contact is a liquid and a gas. |
Free Body Diagram | Diagram used to show the relative magnitude and direction of all forces acting upon an object in a given situation. |
Gravity | the force due to gravitational attraction between masses. |
Law of Universal Gravitation | All objects in the universe are attracted to each other. |
Free fall | Occurs when gravity is the only force acting on a falling object. |
Terminal Velocity | The acceleration during free fall. |
Acceleration due to gravity | The acceleration during free fall. |