click below
click below
Normal Size Small Size show me how
BeaverLocal11
Beaver Local 11
| Question | Answer |
|---|---|
| What is an object's change in position relative to a reference point | Motion |
| An SI based unit,that deals with length (usually the meter - m) | Distance |
| A system for specifying the precise location of objects in space and time | Frame of Reference |
| A derived unit which includes distance and time | Speed |
| What SI based unit is usually used to specify time? | Seconds |
| the point from beginning point to ending point | Displacement |
| the speed and particular direction of motion | velocity |
| when an object covers equal distances in an equal amount of time | constant speed |
| the distance traveled by an object divided by the amount of time it takes that object to travel that distance | average speed |
| speed that is measured in an infinitely small time interval | instantaneous speed |
| the space between objects,units,points, or states | interval |
| the rate at which velocity changes over time | acceleration |
| the acceleration that occurs in a circular motion | centripetal acceleration |
| quantity whose value doesnt change | constant |
| the slope of a straight line on a speed vs. time graph is equal to the acceleration | constant acceleration |
| any action that can change the state of motion of an object | force |
| forces such as the force of gravity, the elctromagnetic force, the strong nuclear force,and the weak nuclear force. | fundemental forces |
| meaning basic | fundememtal |
| an action exerted on a body in order to change the bodys state of rest or motion it has magnitude and direction | force |
| pushes or pulls are in this category | contact force |
| doesnt require the objects to touch | field forces |
| a combination of all forces acting on an object | net force |
| a force that opposes a motion between two surfaces that are in contact | friction |
| the force that resists the initiation of sliding motion between two surfaces that are in contact and at rest | static friction |
| force that opposes the movement of two surfaces that are in the contact and are moving over each other | kinetic friction |
| the friction that occurs when to objects slide past each other | sliding friction |
| friction that occurs when an object rolls over a surface | rolling friction |
| substances that are applied to surfaces to lower the friction between them | lubricants |