Chapter 10 Motion Flashcards
Am objects change in position relative to a reference point.
Motion
The stationary object
Reference point
The change in position of an object
Displacement
The distance traveled divided by time interval during which the motion occurred.
Speed
Calculated as distance traveled divided by time
Average speed
Speed measured in an infinitely small time interval
Instantaneous speed
Speed of an object in a particular direction
Velocity
Combine velocities to determine
Resultant velocity
An abject accumulates if speed or direction changes. When velocity changes
Acceleration
The acceleration that occurs in uniform circulation.
Centripetal acceleration
A change is velocity that doesn’t differ over a given amount of time.
Constant acceleration
An action put on a something to change the objects state of rest or motion
Force
Combination of all forces on object
Net force
Doesn’t cause an object at rest to move net force is zero
Balanced forces
Net force greater than zero
Unbalanced forces
A force that makes motion harder to happen between two surfaces touching
Friction
Objects sliding past each other
Sliding friction
Round object rolls over flat object
Rolling friction
Object moving through a fluid encounters friction between the fluid and surface
Fluid friction
Force that doesn’t let the intention of sliding motion between two surfaces that are in contact and at rest
Static friction
Force that doesn’t let the movement of two surfaces that are in contact + sliding on each other
Kinetic friction
