Chapter 19 vocab Flashcards
motion
when an object changes position over time relative to a reference point
delta
change
reference point
The object that appears to stay in place, or an arbitrary point on an object used to establish its position
distance
How far an object travels from an initial position to a final position
Inital position
The position that an object starts at±
final position
The position that an object ends at
speed
The distance traveled divided by the time interval during which the motion occurred
velocity
the speed of an object in a particular direction.
acceleration
The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change.
position
The location of an object in relation to a reference point
Force
a push or pull exerted on an object in order to change the motion of the object; force has the size and direction.
Newton
The SI unit for force; 1 N = an object weighing 1kg accelerating at the rate of 1 meter per second
Net force
the combination of all of the forces acting on an object
Balanced force
when the forces on an object produce a net force of 0N
Friction
a force that opposes motion between 2 surfaces that are in contact.
