Chapter 11 Key Terms Flashcards
(10 cards)
An object’s change in position relative to a reference point
Motion
A system for specifying the precise location of objects in space and time
Frame of Reference
The change in position of an object
Displacement
The distance traveled divided by the time interval during which the motion occurred
Speed
The speed of an object in a particular direction
Velocity
The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
Acceleration
An action exerted on a body in order to change the body’s state of rest or motion; force has magnitude and direction
Force
A force that opposes 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
The force that opposes the movement of two surfaces that are in contact and are moving over each other.
Kinetic Friction
