Fundamental Quantity

Describe fundemental quantities and derived quantities and also their units.

Student can be able to : 2. Identification physical quantities in daily life and collected in the fundamental quantities and derive quantites. 3. Using International units in the measuring. 4. Comunicating the simple units of length, mass and time.

Quantities and Unit

a b

c

e d

30 cm

Example of fundamental quantities : 2. Length 3. Mass 4. Time 5. Temperature

Length Mass Time Temperature

meter Kg Second Kelvin

Derived Quantities

1. 2. 3. 4. 5. 6. 7.

Volume = volume Area = luas Velocity = kecepatan Force = gaya Density = massa jenis Acceleration = percepatan etc

Volume = metre cubic (m3) Area = meter square (m2) Velocity = m/s Force = Newton (N) Density = kg/m3) Acceleration = m/s2 etc

No 1

Quantities

Units

m

kilogram

Length

2 3

Symbol

Time

Symbol unit m

s

4

T

kelvin

5

i

ampere

6

Luminous intensity

cd

7

Amount of substance

mol

No

Quantities

1

Volume

2 3

Symbol

6

Symbol unit

V ν

Meter per second

Density

Kg/m3

4 5

Units

Meter square Force

Newton a

Meter per second square

m2

No

Quantities

Symbol

Units

1

Length

L

meter

Symbol unit m

2

Mass

m

kilogram

kg

3

Time

t

second

s

4

Temperature

T

kelvin

K

5

Electric Current

I

ampere

A

6

Luminous intensity

Lu

Candela

cd

7

Amount of substance

-

mole

mol

No

Quantities

Symbol

Units

1

Volume

V

Meter cubic

Symbol unit m3

2

velocity

ν

Meter per second

m/s

3

Density

ρ

Kg/m3

4

Area

A

Kilogram per meter cubic Meter square

5

Force

F

Newton

N

6

Acceleration

a

Meter per second square

m/s2

m2

 The

Fundamental Quantities are conventionally established by the International Conference on weight and measurement.

Fundamental Quantities Length Mass Time Temperature

S.I. Unit

Metre (m) Kilogram (kg) Second (s) Kelvin (K)

Symbol of fundemantal Quantities l m t T

 Derived

Quantities is a quantities which can be derived from the fundamental quantities.

Derived Quantities

S.I. Unit

Symbol of Derived Quantities

Volume Area Velocity Density

Meter cubic (m3) Meter square (m2) Meter per second (m/s) Kilogram per meter cubic (Kg/m3)

V A v ρ