M

r

Lesson 2 Natural Sciences 2ยบ ESO

International System of units

Fundamental magnitudes

Mass

kilogram

Length

Metre

Time

Second

Amount of matter

Mol

Temperature

SKelvin degree

Luminous intensity

Candle

Current Intensity

Amp

Derived magnitudes

Speed

m/s

Area

m2

Volume

m3

Capacity

Litre

Force

Newton

Enrgy

Joule

Mass, Volume and Density

D=M/V

We measure magnitudes

Multiples

Tera

Giga

Mega

Kilo

Hecto

Deca

Unit

Subtema

Submultiples

deci

centi

mili

micro

nano

pico

Do they depend on the amount?

Extensives

Mass

Volume

Intensives

Density

Boling point

Thermal Conductivity

Can they be measured?

No

Qualities

Colour

Beauty

Goodness

Yes

Quantities

Speed

Presure

Weight

We express the measurement with

A unit

a number