MOTION: Speed and
Velocity
Chapter 8 Section
1 Part 1
Motion
•Motion is just
________________________________________________________.
•How do we know that an object is
moving?
–An object is moving if
____________________________________________________________________ that stays
the same.
–We call this background
__________________________________________________________________.
Speed
•Speed describes
_______________________________________________________________________.
•An object that covers
____________________________________________________________________
_________________________________is moving at __________________________________.
•Most objects
______________________________________ at constant speed. Instead, we will work with a quantity called
________________________________________________.
•To find average speed, you must
___________________________________________________________:
–_____________________________________________________________________________________
–_____________________________________________________________________________________
•To calculate average speed,
_______________________________________________________________
_____________________________________________________________________________________.
•Speed (v) = ____________________________________________________________________________
•The distance traveled by the little
bug = ______________________________________
•The time it took the little bug to
travel that distance = _______________________________
•The speed of the little bug is just
his ________________________________________________________
_____________________________________________________________________________________.
•Little bug’s speed =
_____________________________________________________________________
•Speed only tells you
____________________________________________________________________.
•Speed is always
_______________________________________________________________________.
•The SI unit for speed is
_____________. Speed is often also
measured in other units such as _____________
_____________________________________________.
Velocity
•Velocity is both
________________________________________________________________________.
•Velocity is ___________________________________________________________________________..
•The direction of motion can be
described in various ways such as:
–_____________________________________________________________________________________
–_____________________________________________________________________________________
–_____________________________________________________________________________________
•NOTE: Velocity will always be
considered _____________________________________________________
_____________________________________________________________________________________!
•
So… are speed and velocity the same?
•
A car traveling at constant speed
______________________________________________.
–
Does the speed change?
•
____________________________________________________________________
______________________________________________________________________.
–
Does the velocity change?
•
________________________________________________________________________________________________________________________________________.