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1. Physical quantities and
measurements
Now you’ve studied the Grade 6
‘Introduction to Science’
unit, you are able to:
STQuman heart beats at definite time
A h
intervals. Is it possible to measure ✔ plan and carry out simple observations Physics
textbooks nis edu kz
these time intervals using your heart ✔ obtain, record and classify data to provide
rate? Describe cases in which such simple explanations
measurement will be precise enough.
In this unit you will learn:
✔ what physical quantities are
✔ about physical phenomena and be able to
give examples
✔ the International System of Units (SI), and
some differences between base units and
derived units
✔ the difference between vector and scalar
quantities
✔ how to record large and small numbers in
standard form
✔ simple addition and subtraction of vectors
Key phrases:
✔ Physical quantities are divided into … and …
✔ Examples of base units of measurement are … ,
… , … and …
✔ Examples of derived units of measurement are … ,
… , … and …
✔ To define scale division of a measuring device it is
necessary to …
CCL In ‘Introduction to Science’ classes you
studied some physical phenomena and concepts.
In Biology and Chemistry classes you have learnt
how to conduct observations and in Maths
classes you have plotted graphs and tables. All this
knowledge will be useful in your Physics classes.
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