Materi 2 Measurement

Measurement

MK Pengukuran Teknik/ Metrology

Dosen Pengampu: Ir. Anis Siti Nurrohkayati, S.T., M.T

Introduction

Measurement is finding a
number that shows the size
or amount of something.

We Can Measure

Length

is how far from end to end. Also called distance.

The length of this piano is about 1 metre.

We Can Measure

Area

is the size of a surface; how much is inside the boundary of
a flat (2-dimensional) object such as a triangle or circle.

Here Caty the cat is waiting patiently inside 1 square metre,

We Can Measure

Volume

is the amount of 3-dimensional space an object occupies.
Also called capacity.

This glass has exactly 1 litre of water in it (slightly more
than 2 pints)

We Can Measure

Mass (weight)

is how much matter something contains.

This bar of gold has a mass of 1 kilogram (slightly more
than 2 pounds).

(Weight is “heaviness”… the downward
force caused by gravity on an object.

We Can Measure

Temperature
• How hot or cold a thing is.
• Temperature is measured using a

thermometer, usually in the celsius or
Fahrenheit scale.

We Can Measure

Time
• Is the ongoing sequence of events taking

place

• We measure time using seconds,

minutes, hours, days, weeks, months and
years.

Systems of Measurement

There are two main systems of measurement:
1. Metric system: metres, kilograms, litres, etc
2. US standard units: feet, pounds, pints, etc

History of Measurement

Years ago people came up with standard length

measures, but they didn't all agree on one system.

The Imperial System (which uses yards, feet, inches,

etc to measure length) was developed over hundreds

of years in the UK.

Then the French came up with the Metric

System (origins in 1670, but developed in the 1790s),

which soon spread through Europe, and then most of

the world, even to England itself in 1965.

The USA developed their own version of the Imperial

system (US Standard Units), but the Metric System is

also used in the USA, particularly in Science.

Terimakasih

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