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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 |