, 191-19s
pg
Scalars and Vectors
Anything thatcanbe symbol asalesas
measured can be represented by an appropriate
SI
System System International d'Unites
7 basic units of measurement .
Quantity Symbol for measurement SI basic unit
Symbol for unit
Length 1 a metre
o yir
, o m
Time Second S
Mass hilogram g
Electrical
Temperature
Current
- ampere
helvin k
Quantity of matter N mole rol
Luminous
Intensity L Candela ca
Scalar
A
physical quantity that has magnmade only ,
no direction .
e .
.
g mass
buy ,
time bs) ,
distance 4m
Vector
A
physical quantity that has both mayude and direction.
displacement acceleration 4m s north
.
e 40m west ;
velocity Sm s" east ;
-
.
g
. .
Direction of a Vector
~
Sm left am
Might
we X
40cm north
* Fixed point used as reference
starting point
vertical movement
⑧
- Show Horizontal left and and down .
movement
right loam aference
south
~
, up points
Fixed point also used for
bearing points Measure from north 10° clockwise
*
compass reference . in
direction .
e .
.
g
Car moves at 6m s" in
.
south
castery direction ,
with
velocity of 6ms" and
bearing
°
130
go
1 =
per
-
130° Direction
:
%
230 90
↓
·
6m s -1
.
Magnitude
1800
pg
Scalars and Vectors
Anything thatcanbe symbol asalesas
measured can be represented by an appropriate
SI
System System International d'Unites
7 basic units of measurement .
Quantity Symbol for measurement SI basic unit
Symbol for unit
Length 1 a metre
o yir
, o m
Time Second S
Mass hilogram g
Electrical
Temperature
Current
- ampere
helvin k
Quantity of matter N mole rol
Luminous
Intensity L Candela ca
Scalar
A
physical quantity that has magnmade only ,
no direction .
e .
.
g mass
buy ,
time bs) ,
distance 4m
Vector
A
physical quantity that has both mayude and direction.
displacement acceleration 4m s north
.
e 40m west ;
velocity Sm s" east ;
-
.
g
. .
Direction of a Vector
~
Sm left am
Might
we X
40cm north
* Fixed point used as reference
starting point
vertical movement
⑧
- Show Horizontal left and and down .
movement
right loam aference
south
~
, up points
Fixed point also used for
bearing points Measure from north 10° clockwise
*
compass reference . in
direction .
e .
.
g
Car moves at 6m s" in
.
south
castery direction ,
with
velocity of 6ms" and
bearing
°
130
go
1 =
per
-
130° Direction
:
%
230 90
↓
·
6m s -1
.
Magnitude
1800
