Scalars + Vectors Flashcards
kinematics def
study of how objects move
speed formula
v = (delta)d
- -------- (delta) t
letters in [ ] signify …
direction
eg. [N]
each quantity is either …
scalar or vector
scalar def
values described by magnitude alone
only numerical value
which type of quantity is most times always positive
scalar
vector def
values described by magnitude and direction
vectors can become scalar but not vice versa (T/F)
T
examples of vectors
velocity
acceleration
displacement
position
examples of scalars
speed
distance
time
mass
vector term
refers to where something is based on ref point
->
position (d )
scalar quantity
refers to length of path taken
distance (d)
vector quantity
refers to objects change in position
——–>
displacement (delta d)
direction doesn’t matter
add up all the numbers
distance
direction matters
north/east = positive, south/west = negative
total of all values
displacement
