Physics: Displacement and Velocity
in 2 dimensions anything above the origins is considered positive and below is negative
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distance
a scalar quantity that is the length of travel, neglecting direction
speed
a scalar quantity that measure how fast something moves, neglecting direction
magnitude
a term given to the size of quantity
velocity
a vector quantity that measures how fast something moves from one point to another with direction
free fall
an object in free fall at constant acceleration towards the surface of a planet neglecting air resistance
average velocity equation
change in position / change in time so final position - initial position / final time -initial time
average acceleration formula
change in velocity/ change in time so final velocity - initial velocity / final time - initial time
displacement equation
displacement= final position - initial position
average velocity
is equal to the displacement divided by the time during which the displacement occured
What is the SI unit for distance and displacement?
meters (m)
SI unit of velocity
meters/ second (m/s)
anything to the left of the origin will be considered...
negative
anything to the right of the origin is considered .....
positive
distance is a __________ quantity
scalar
average acceleration
the average change in velocity divided by the change in time
displacement
the change in position of an object from one point to another in a straight line with direction
instantaneous position
the location of an object at a particular instant in time relative to the origin
position
the location of an object relative to the origin
acceleration
the quantity that describes the rate of change of velocity in a given time interval
instantaneous velocity
the speed and direction of an object at a single instant moment in time
origin
the zero point or where an object begins motion
displacement is a _________ quantity
vector
in displacement horizontal movement is denoted as ...
Δx
in displacement vertical movement is denoted as
Δy