PPT SI Units of Junior High Grade 7 Force Material

this is ppt about si units

1. Measurements and
Calculations

2. Units of Measurement
•Measurements involve NUMBER and
UNIT
•Represent a quantity: has magnitude,
size, or amount
•Gram = unit of measurement
•Mass = quantity

3. Units of Measurement
•Scientists around the world agree on
one system…
–International System of Units
(le Systeme International d’Unites)
–SI units
–Built from seven base units

4. SI Base Units

5. Units of Measurement

6. Units of Measurement
•Metric Prefixes – make units easier to use
•Make the unit smaller or larger
•Unit = prefix + base unit

8. Derived Units